configure

#! /bin/sh
# Guess values for system-dependent variables and create Makefiles.
# Generated by GNU Autoconf 2.71 for click 2.1.
#
#
# Copyright (C) 1992-1996, 1998-2017, 2020-2021 Free Software Foundation,
# Inc.
#
#
# This configure script is free software; the Free Software Foundation
# gives unlimited permission to copy, distribute and modify it.
## -------------------- ##
## M4sh Initialization. ##
## -------------------- ##

# Be more Bourne compatible
DUALCASE=1; export DUALCASE # for MKS sh
as_nop=:
if test ${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
then :
  emulate sh
  NULLCMD=:
  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
  # is contrary to our usage.  Disable this feature.
  alias -g '${1+"$@"}'='"$@"'
  setopt NO_GLOB_SUBST
else $as_nop
  case `(set -o) 2>/dev/null` in #(
  *posix*) :
    set -o posix ;; #(
  *) :
     ;;
esac
fi



# Reset variables that may have inherited troublesome values from
# the environment.

# IFS needs to be set, to space, tab, and newline, in precisely that order.
# (If _AS_PATH_WALK were called with IFS unset, it would have the
# side effect of setting IFS to empty, thus disabling word splitting.)
# Quoting is to prevent editors from complaining about space-tab.
as_nl='
'
export as_nl
IFS=" ""	$as_nl"

PS1='$ '
PS2='> '
PS4='+ '

# Ensure predictable behavior from utilities with locale-dependent output.
LC_ALL=C
export LC_ALL
LANGUAGE=C
export LANGUAGE

# We cannot yet rely on "unset" to work, but we need these variables
# to be unset--not just set to an empty or harmless value--now, to
# avoid bugs in old shells (e.g. pre-3.0 UWIN ksh).  This construct
# also avoids known problems related to "unset" and subshell syntax
# in other old shells (e.g. bash 2.01 and pdksh 5.2.14).
for as_var in BASH_ENV ENV MAIL MAILPATH CDPATH
do eval test \${$as_var+y} \
  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
done

# Ensure that fds 0, 1, and 2 are open.
if (exec 3>&0) 2>/dev/null; then :; else exec 0</dev/null; fi
if (exec 3>&1) 2>/dev/null; then :; else exec 1>/dev/null; fi
if (exec 3>&2)            ; then :; else exec 2>/dev/null; fi

# The user is always right.
if ${PATH_SEPARATOR+false} :; then
  PATH_SEPARATOR=:
  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
      PATH_SEPARATOR=';'
  }
fi


# Find who we are.  Look in the path if we contain no directory separator.
as_myself=
case $0 in #((
  *[\\/]* ) as_myself=$0 ;;
  *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    test -r "$as_dir$0" && as_myself=$as_dir$0 && break
  done
IFS=$as_save_IFS

     ;;
esac
# We did not find ourselves, most probably we were run as `sh COMMAND'
# in which case we are not to be found in the path.
if test "x$as_myself" = x; then
  as_myself=$0
fi
if test ! -f "$as_myself"; then
  printf "%s\n" "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
  exit 1
fi


# Use a proper internal environment variable to ensure we don't fall
  # into an infinite loop, continuously re-executing ourselves.
  if test x"${_as_can_reexec}" != xno && test "x$CONFIG_SHELL" != x; then
    _as_can_reexec=no; export _as_can_reexec;
    # We cannot yet assume a decent shell, so we have to provide a
# neutralization value for shells without unset; and this also
# works around shells that cannot unset nonexistent variables.
# Preserve -v and -x to the replacement shell.
BASH_ENV=/dev/null
ENV=/dev/null
(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
case $- in # ((((
  *v*x* | *x*v* ) as_opts=-vx ;;
  *v* ) as_opts=-v ;;
  *x* ) as_opts=-x ;;
  * ) as_opts= ;;
esac
exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
# Admittedly, this is quite paranoid, since all the known shells bail
# out after a failed `exec'.
printf "%s\n" "$0: could not re-execute with $CONFIG_SHELL" >&2
exit 255
  fi
  # We don't want this to propagate to other subprocesses.
          { _as_can_reexec=; unset _as_can_reexec;}
if test "x$CONFIG_SHELL" = x; then
  as_bourne_compatible="as_nop=:
if test \${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
then :
  emulate sh
  NULLCMD=:
  # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which
  # is contrary to our usage.  Disable this feature.
  alias -g '\${1+\"\$@\"}'='\"\$@\"'
  setopt NO_GLOB_SUBST
else \$as_nop
  case \`(set -o) 2>/dev/null\` in #(
  *posix*) :
    set -o posix ;; #(
  *) :
     ;;
esac
fi
"
  as_required="as_fn_return () { (exit \$1); }
as_fn_success () { as_fn_return 0; }
as_fn_failure () { as_fn_return 1; }
as_fn_ret_success () { return 0; }
as_fn_ret_failure () { return 1; }

exitcode=0
as_fn_success || { exitcode=1; echo as_fn_success failed.; }
as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; }
as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; }
as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; }
if ( set x; as_fn_ret_success y && test x = \"\$1\" )
then :

else \$as_nop
  exitcode=1; echo positional parameters were not saved.
fi
test x\$exitcode = x0 || exit 1
blah=\$(echo \$(echo blah))
test x\"\$blah\" = xblah || exit 1
test -x / || exit 1"
  as_suggested="  as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO
  as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO
  eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" &&
  test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1
test \$(( 1 + 1 )) = 2 || exit 1"
  if (eval "$as_required") 2>/dev/null
then :
  as_have_required=yes
else $as_nop
  as_have_required=no
fi
  if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null
then :

else $as_nop
  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
as_found=false
for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
  as_found=:
  case $as_dir in #(
	 /*)
	   for as_base in sh bash ksh sh5; do
	     # Try only shells that exist, to save several forks.
	     as_shell=$as_dir$as_base
	     if { test -f "$as_shell" || test -f "$as_shell.exe"; } &&
		    as_run=a "$as_shell" -c "$as_bourne_compatible""$as_required" 2>/dev/null
then :
  CONFIG_SHELL=$as_shell as_have_required=yes
		   if as_run=a "$as_shell" -c "$as_bourne_compatible""$as_suggested" 2>/dev/null
then :
  break 2
fi
fi
	   done;;
       esac
  as_found=false
done
IFS=$as_save_IFS
if $as_found
then :

else $as_nop
  if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
	      as_run=a "$SHELL" -c "$as_bourne_compatible""$as_required" 2>/dev/null
then :
  CONFIG_SHELL=$SHELL as_have_required=yes
fi
fi


      if test "x$CONFIG_SHELL" != x
then :
  export CONFIG_SHELL
             # We cannot yet assume a decent shell, so we have to provide a
# neutralization value for shells without unset; and this also
# works around shells that cannot unset nonexistent variables.
# Preserve -v and -x to the replacement shell.
BASH_ENV=/dev/null
ENV=/dev/null
(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
case $- in # ((((
  *v*x* | *x*v* ) as_opts=-vx ;;
  *v* ) as_opts=-v ;;
  *x* ) as_opts=-x ;;
  * ) as_opts= ;;
esac
exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
# Admittedly, this is quite paranoid, since all the known shells bail
# out after a failed `exec'.
printf "%s\n" "$0: could not re-execute with $CONFIG_SHELL" >&2
exit 255
fi

    if test x$as_have_required = xno
then :
  printf "%s\n" "$0: This script requires a shell more modern than all"
  printf "%s\n" "$0: the shells that I found on your system."
  if test ${ZSH_VERSION+y} ; then
    printf "%s\n" "$0: In particular, zsh $ZSH_VERSION has bugs and should"
    printf "%s\n" "$0: be upgraded to zsh 4.3.4 or later."
  else
    printf "%s\n" "$0: Please tell bug-autoconf@gnu.org about your system,
$0: including any error possibly output before this
$0: message. Then install a modern shell, or manually run
$0: the script under such a shell if you do have one."
  fi
  exit 1
fi
fi
fi
SHELL=${CONFIG_SHELL-/bin/sh}
export SHELL
# Unset more variables known to interfere with behavior of common tools.
CLICOLOR_FORCE= GREP_OPTIONS=
unset CLICOLOR_FORCE GREP_OPTIONS

## --------------------- ##
## M4sh Shell Functions. ##
## --------------------- ##
# as_fn_unset VAR
# ---------------
# Portably unset VAR.
as_fn_unset ()
{
  { eval $1=; unset $1;}
}
as_unset=as_fn_unset


# as_fn_set_status STATUS
# -----------------------
# Set $? to STATUS, without forking.
as_fn_set_status ()
{
  return $1
} # as_fn_set_status

# as_fn_exit STATUS
# -----------------
# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
as_fn_exit ()
{
  set +e
  as_fn_set_status $1
  exit $1
} # as_fn_exit
# as_fn_nop
# ---------
# Do nothing but, unlike ":", preserve the value of $?.
as_fn_nop ()
{
  return $?
}
as_nop=as_fn_nop

# as_fn_mkdir_p
# -------------
# Create "$as_dir" as a directory, including parents if necessary.
as_fn_mkdir_p ()
{

  case $as_dir in #(
  -*) as_dir=./$as_dir;;
  esac
  test -d "$as_dir" || eval $as_mkdir_p || {
    as_dirs=
    while :; do
      case $as_dir in #(
      *\'*) as_qdir=`printf "%s\n" "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
      *) as_qdir=$as_dir;;
      esac
      as_dirs="'$as_qdir' $as_dirs"
      as_dir=`$as_dirname -- "$as_dir" ||
$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
	 X"$as_dir" : 'X\(//\)[^/]' \| \
	 X"$as_dir" : 'X\(//\)$' \| \
	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
printf "%s\n" X"$as_dir" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
	    s//\1/
	    q
	  }
	  /^X\(\/\/\)[^/].*/{
	    s//\1/
	    q
	  }
	  /^X\(\/\/\)$/{
	    s//\1/
	    q
	  }
	  /^X\(\/\).*/{
	    s//\1/
	    q
	  }
	  s/.*/./; q'`
      test -d "$as_dir" && break
    done
    test -z "$as_dirs" || eval "mkdir $as_dirs"
  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"


} # as_fn_mkdir_p

# as_fn_executable_p FILE
# -----------------------
# Test if FILE is an executable regular file.
as_fn_executable_p ()
{
  test -f "$1" && test -x "$1"
} # as_fn_executable_p
# as_fn_append VAR VALUE
# ----------------------
# Append the text in VALUE to the end of the definition contained in VAR. Take
# advantage of any shell optimizations that allow amortized linear growth over
# repeated appends, instead of the typical quadratic growth present in naive
# implementations.
if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null
then :
  eval 'as_fn_append ()
  {
    eval $1+=\$2
  }'
else $as_nop
  as_fn_append ()
  {
    eval $1=\$$1\$2
  }
fi # as_fn_append

# as_fn_arith ARG...
# ------------------
# Perform arithmetic evaluation on the ARGs, and store the result in the
# global $as_val. Take advantage of shells that can avoid forks. The arguments
# must be portable across $(()) and expr.
if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null
then :
  eval 'as_fn_arith ()
  {
    as_val=$(( $* ))
  }'
else $as_nop
  as_fn_arith ()
  {
    as_val=`expr "$@" || test $? -eq 1`
  }
fi # as_fn_arith

# as_fn_nop
# ---------
# Do nothing but, unlike ":", preserve the value of $?.
as_fn_nop ()
{
  return $?
}
as_nop=as_fn_nop

# as_fn_error STATUS ERROR [LINENO LOG_FD]
# ----------------------------------------
# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
# provided, also output the error to LOG_FD, referencing LINENO. Then exit the
# script with STATUS, using 1 if that was 0.
as_fn_error ()
{
  as_status=$1; test $as_status -eq 0 && as_status=1
  if test "$4"; then
    as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
  fi
  printf "%s\n" "$as_me: error: $2" >&2
  as_fn_exit $as_status
} # as_fn_error

if expr a : '\(a\)' >/dev/null 2>&1 &&
   test "X`expr 00001 : '.*\(...\)'`" = X001; then
  as_expr=expr
else
  as_expr=false
fi

if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
  as_basename=basename
else
  as_basename=false
fi

if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
  as_dirname=dirname
else
  as_dirname=false
fi

as_me=`$as_basename -- "$0" ||
$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
	 X"$0" : 'X\(//\)$' \| \
	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
printf "%s\n" X/"$0" |
    sed '/^.*\/\([^/][^/]*\)\/*$/{
	    s//\1/
	    q
	  }
	  /^X\/\(\/\/\)$/{
	    s//\1/
	    q
	  }
	  /^X\/\(\/\).*/{
	    s//\1/
	    q
	  }
	  s/.*/./; q'`

# Avoid depending upon Character Ranges.
as_cr_letters='abcdefghijklmnopqrstuvwxyz'
as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
as_cr_Letters=$as_cr_letters$as_cr_LETTERS
as_cr_digits='0123456789'
as_cr_alnum=$as_cr_Letters$as_cr_digits


  as_lineno_1=$LINENO as_lineno_1a=$LINENO
  as_lineno_2=$LINENO as_lineno_2a=$LINENO
  eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
  test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || {
  # Blame Lee E. McMahon (1931-1989) for sed's syntax.  :-)
  sed -n '
    p
    /[$]LINENO/=
  ' <$as_myself |
    sed '
      s/[$]LINENO.*/&-/
      t lineno
      b
      :lineno
      N
      :loop
      s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
      t loop
      s/-\n.*//
    ' >$as_me.lineno &&
  chmod +x "$as_me.lineno" ||
    { printf "%s\n" "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }

  # If we had to re-execute with $CONFIG_SHELL, we're ensured to have
  # already done that, so ensure we don't try to do so again and fall
  # in an infinite loop.  This has already happened in practice.
  _as_can_reexec=no; export _as_can_reexec
  # Don't try to exec as it changes $[0], causing all sort of problems
  # (the dirname of $[0] is not the place where we might find the
  # original and so on.  Autoconf is especially sensitive to this).
  . "./$as_me.lineno"
  # Exit status is that of the last command.
  exit
}


# Determine whether it's possible to make 'echo' print without a newline.
# These variables are no longer used directly by Autoconf, but are AC_SUBSTed
# for compatibility with existing Makefiles.
ECHO_C= ECHO_N= ECHO_T=
case `echo -n x` in #(((((
-n*)
  case `echo 'xy\c'` in
  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
  xy)  ECHO_C='\c';;
  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
       ECHO_T='	';;
  esac;;
*)
  ECHO_N='-n';;
esac

# For backward compatibility with old third-party macros, we provide
# the shell variables $as_echo and $as_echo_n.  New code should use
# AS_ECHO(["message"]) and AS_ECHO_N(["message"]), respectively.
as_echo='printf %s\n'
as_echo_n='printf %s'


rm -f conf$$ conf$$.exe conf$$.file
if test -d conf$$.dir; then
  rm -f conf$$.dir/conf$$.file
else
  rm -f conf$$.dir
  mkdir conf$$.dir 2>/dev/null
fi
if (echo >conf$$.file) 2>/dev/null; then
  if ln -s conf$$.file conf$$ 2>/dev/null; then
    as_ln_s='ln -s'
    # ... but there are two gotchas:
    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
    # In both cases, we have to default to `cp -pR'.
    ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
      as_ln_s='cp -pR'
  elif ln conf$$.file conf$$ 2>/dev/null; then
    as_ln_s=ln
  else
    as_ln_s='cp -pR'
  fi
else
  as_ln_s='cp -pR'
fi
rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
rmdir conf$$.dir 2>/dev/null

if mkdir -p . 2>/dev/null; then
  as_mkdir_p='mkdir -p "$as_dir"'
else
  test -d ./-p && rmdir ./-p
  as_mkdir_p=false
fi

as_test_x='test -x'
as_executable_p=as_fn_executable_p

# Sed expression to map a string onto a valid CPP name.
as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"

# Sed expression to map a string onto a valid variable name.
as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"


test -n "$DJDIR" || exec 7<&0 </dev/null
exec 6>&1

# Name of the host.
# hostname on some systems (SVR3.2, old GNU/Linux) returns a bogus exit status,
# so uname gets run too.
ac_hostname=`(hostname || uname -n) 2>/dev/null | sed 1q`

#
# Initializations.
#
ac_default_prefix=/usr/local
ac_clean_files=
ac_config_libobj_dir=.
LIBOBJS=
cross_compiling=no
subdirs=
MFLAGS=
MAKEFLAGS=

# Identity of this package.
PACKAGE_NAME='click'
PACKAGE_TARNAME='click'
PACKAGE_VERSION='2.1'
PACKAGE_STRING='click 2.1'
PACKAGE_BUGREPORT=''
PACKAGE_URL=''

ac_unique_file="click-buildtool.in"
# Factoring default headers for most tests.
ac_includes_default="\
#include <stddef.h>
#ifdef HAVE_STDIO_H
# include <stdio.h>
#endif
#ifdef HAVE_STDLIB_H
# include <stdlib.h>
#endif
#ifdef HAVE_STRING_H
# include <string.h>
#endif
#ifdef HAVE_INTTYPES_H
# include <inttypes.h>
#endif
#ifdef HAVE_STDINT_H
# include <stdint.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#ifdef HAVE_SYS_STAT_H
# include <sys/stat.h>
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif"

ac_header_c_list=
ac_header_cxx_list=
ac_func_c_list=
ac_subst_vars='LTLIBOBJS
provisions
clickbuild_clickdir
clickbuild_sbindir
clickbuild_libdir
clickbuild_includedir
clickbuild_datadir
clickbuild_clickdatadir
clickbuild_bindir
clickdatadir
POD2MAN
TEXI2DVI
MAKEINFO
INSTALL_INFO
TOOL_CLEAN_TARGETS
TOOL_INSTALL_TARGETS
CLEAN_TARGETS
INSTALL_TARGETS
INCLUDES_LLVM
LIBS_LLVM
LLVM_OBJS
LLVMCONFIG
MD5SUM
AWK
PERL
localperl5
perl5
AUTOCONF
GMAKE
SUBMAKE
CLICK_BUILD_INSTALL_IF_CHANGED
CLICK_BUILD_INSTALL
CLICKINSTALL
INSTALL_IF_CHANGED
INSTALL_DATA
INSTALL_SCRIPT
INSTALL_PROGRAM
LINUX_DEBUG_FLAGS
CLICKLINUX_FIXINCLUDES_PROGRAM
LINUX_FIXINCLUDES_PROGRAM
linux_makeargs
EXPAT_LIBS
EXPAT_INCLUDES
XML2CLICK
PROPER_LIBS
PROPER_INCLUDES
HAVE_NETMAP_PACKET_POOL
NETMAP_INCLUDES
NUMA_INCLUDES
PCAP_LIBS
PCAP_INCLUDES
HAVE_DPDK_XCHG
USE_DPDK
DPDK_CFLAGS
DPDK_LIBS
DPDK_INCLUDES
RTE_VER_MINOR
RTE_VER_MAJOR
RTE_VER_MONTH
RTE_VER_YEAR
RTE_SDK_BIN
RTE_TARGET
RTE_SDK
RTE_USE_PKGCONFIG
TOOL_TARGETS
TOOLDIRS
OTHER_TARGETS
HAVE_MINIOS_DRIVER
HAVE_BSDMODULE_DRIVER
HAVE_LINUXMODULE_DRIVER
HAVE_USERLEVEL_DRIVER
DRIVERS
POSSIBLE_DRIVERS
HAVE_FLOW_API
LINUXMODULE_2_6
EXTRA_TOOL_OBJS
EXTRA_DRIVER_OBJS
SOCKET_LIBS
CLICK_SHARED
BUILD_DL_LIBS
BUILD_DL_LDFLAGS
SOSUFFIX
LDMODULEFLAGS
DL_LDFLAGS
DL_LIBS
HOST_TOOLS
BUILD_RANLIB
BUILD_AR
BUILD_CXX
BUILD_CC
USE_CTX
USE_FLOW
POSIX_CLOCK_LIBS
HAVE_CXX17
EGREP
GREP
LIBOBJS
freebsd_includedir
freebsd_srcdir
FINDELEMFLAGS
all_element_groups
element_groups
linux_srcdir
linux_builddir
lwip_dir
newlib_dir
minios_dir
xen_dir
INCLUDE_KSYMS
LINUXMODULE_FIXINCLUDES
DO_RAND_ALIGN
PTHREAD_LIBS
HAVE_BATCH
AR_CREATEFLAGS
STRIP
READELF
RANLIB
OBJCOPY
NM
LD
AR
KERNEL_CXXFLAGS
KERNEL_CXX
KERNEL_CFLAGS
KERNEL_CC
CXXCPP
ac_ct_CXX
CXXFLAGS
CPP
DEPDIRFLAG
DEPCFLAGS
OBJEXT
EXEEXT
ac_ct_CC
CPPFLAGS
LDFLAGS
CFLAGS
CXX
CC
target_os
target_vendor
target_cpu
target
host_os
host_vendor
host_cpu
host
build_os
build_vendor
build_cpu
build
conf_auxdir
CLICK_VERSION
ac_configure_args
target_alias
host_alias
build_alias
LIBS
ECHO_T
ECHO_N
ECHO_C
DEFS
mandir
localedir
libdir
psdir
pdfdir
dvidir
htmldir
infodir
docdir
oldincludedir
includedir
runstatedir
localstatedir
sharedstatedir
sysconfdir
datadir
datarootdir
libexecdir
sbindir
bindir
program_transform_name
prefix
exec_prefix
PACKAGE_URL
PACKAGE_BUGREPORT
PACKAGE_STRING
PACKAGE_VERSION
PACKAGE_TARNAME
PACKAGE_NAME
PATH_SEPARATOR
SHELL'
ac_subst_files=''
ac_user_opts='
enable_option_checking
enable_userlevel
enable_user_multithread
enable_fullpush_nonatomic
enable_batch
enable_verbose_batch
enable_auto_batch
enable_netmap_pool
enable_bpf
enable_rand_align
enable_select
enable_poll
enable_kqueue
enable_dpdk
enable_dpdk_pool
enable_dpdk_xchg
enable_dpdk_packet
enable_dpdk_softqueue
enable_flow_api
enable_click_pool
enable_pool_inlining
enable_inlined_allanno
enable_zerocopy
enable_clone
enable_rsspp
enable_linuxmodule
enable_fixincludes
enable_multithread
enable_warp9
enable_kassert
enable_adaptive
enable_linux_symbols
enable_bsdmodule
enable_netisr
enable_nsclick
enable_minios
with_xen
with_minios
with_newlib
with_lwip
with_linux
with_linux_map
enable_all_elements
enable_analysis
enable_app
enable_aqm
enable_ethernet
enable_etherswitch
enable_flow
enable_ctx
enable_grid
enable_icmp
enable_ip
enable_ip6
enable_ipsec
enable_local
enable_radio
enable_research
enable_simple
enable_standard
enable_tcpudp
enable_test
enable_threads
enable_tunnel
enable_wifi
enable_experimental
enable_skip_elements
with_freebsd
enable_smaller_code
enable_int64
enable_nanotimestamp
enable_simtime
enable_user_timestamp
enable_bound_port_transfer
enable_ctx_global_timeout
enable_flow_atomic
enable_flow_dynamic
enable_flow_structure
enable_flow_hash
enable_tools
enable_dynamic_linking
enable_stats
enable_stride
enable_task_heap
enable_task_stats
enable_cpu_load
enable_dmalloc
enable_hash_iterator_epochs
enable_force_expensive
enable_valgrind
enable_schedule_debugging
enable_hash_allocator_poisoning
enable_portable_binary
enable_intel_cpu
enable_avx2
enable_sse42
enable_atomic_builtins
with_numa
with_netmap
with_proper
with_expat
'
      ac_precious_vars='build_alias
host_alias
target_alias
CC
CFLAGS
LDFLAGS
LIBS
CPPFLAGS
CPP
CXX
CXXFLAGS
CCC
CXXCPP'


# Initialize some variables set by options.
ac_init_help=
ac_init_version=false
ac_unrecognized_opts=
ac_unrecognized_sep=
# The variables have the same names as the options, with
# dashes changed to underlines.
cache_file=/dev/null
exec_prefix=NONE
no_create=
no_recursion=
prefix=NONE
program_prefix=NONE
program_suffix=NONE
program_transform_name=s,x,x,
silent=
site=
srcdir=
verbose=
x_includes=NONE
x_libraries=NONE

# Installation directory options.
# These are left unexpanded so users can "make install exec_prefix=/foo"
# and all the variables that are supposed to be based on exec_prefix
# by default will actually change.
# Use braces instead of parens because sh, perl, etc. also accept them.
# (The list follows the same order as the GNU Coding Standards.)
bindir='${exec_prefix}/bin'
sbindir='${exec_prefix}/sbin'
libexecdir='${exec_prefix}/libexec'
datarootdir='${prefix}/share'
datadir='${datarootdir}'
sysconfdir='${prefix}/etc'
sharedstatedir='${prefix}/com'
localstatedir='${prefix}/var'
runstatedir='${localstatedir}/run'
includedir='${prefix}/include'
oldincludedir='/usr/include'
docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
infodir='${datarootdir}/info'
htmldir='${docdir}'
dvidir='${docdir}'
pdfdir='${docdir}'
psdir='${docdir}'
libdir='${exec_prefix}/lib'
localedir='${datarootdir}/locale'
mandir='${datarootdir}/man'

ac_prev=
ac_dashdash=
for ac_option
do
  # If the previous option needs an argument, assign it.
  if test -n "$ac_prev"; then
    eval $ac_prev=\$ac_option
    ac_prev=
    continue
  fi

  case $ac_option in
  *=?*) ac_optarg=`expr "X$ac_option" : '[^=]*=\(.*\)'` ;;
  *=)   ac_optarg= ;;
  *)    ac_optarg=yes ;;
  esac

  case $ac_dashdash$ac_option in
  --)
    ac_dashdash=yes ;;

  -bindir | --bindir | --bindi | --bind | --bin | --bi)
    ac_prev=bindir ;;
  -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*)
    bindir=$ac_optarg ;;

  -build | --build | --buil | --bui | --bu)
    ac_prev=build_alias ;;
  -build=* | --build=* | --buil=* | --bui=* | --bu=*)
    build_alias=$ac_optarg ;;

  -cache-file | --cache-file | --cache-fil | --cache-fi \
  | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
    ac_prev=cache_file ;;
  -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
  | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*)
    cache_file=$ac_optarg ;;

  --config-cache | -C)
    cache_file=config.cache ;;

  -datadir | --datadir | --datadi | --datad)
    ac_prev=datadir ;;
  -datadir=* | --datadir=* | --datadi=* | --datad=*)
    datadir=$ac_optarg ;;

  -datarootdir | --datarootdir | --datarootdi | --datarootd | --dataroot \
  | --dataroo | --dataro | --datar)
    ac_prev=datarootdir ;;
  -datarootdir=* | --datarootdir=* | --datarootdi=* | --datarootd=* \
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    datarootdir=$ac_optarg ;;

  -disable-* | --disable-*)
    ac_useropt=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
    # Reject names that are not valid shell variable names.
    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
      as_fn_error $? "invalid feature name: \`$ac_useropt'"
    ac_useropt_orig=$ac_useropt
    ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
    case $ac_user_opts in
      *"
"enable_$ac_useropt"
"*) ;;
      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--disable-$ac_useropt_orig"
	 ac_unrecognized_sep=', ';;
    esac
    eval enable_$ac_useropt=no ;;

  -docdir | --docdir | --docdi | --doc | --do)
    ac_prev=docdir ;;
  -docdir=* | --docdir=* | --docdi=* | --doc=* | --do=*)
    docdir=$ac_optarg ;;

  -dvidir | --dvidir | --dvidi | --dvid | --dvi | --dv)
    ac_prev=dvidir ;;
  -dvidir=* | --dvidir=* | --dvidi=* | --dvid=* | --dvi=* | --dv=*)
    dvidir=$ac_optarg ;;

  -enable-* | --enable-*)
    ac_useropt=`expr "x$ac_option" : 'x-*enable-\([^=]*\)'`
    # Reject names that are not valid shell variable names.
    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
      as_fn_error $? "invalid feature name: \`$ac_useropt'"
    ac_useropt_orig=$ac_useropt
    ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
    case $ac_user_opts in
      *"
"enable_$ac_useropt"
"*) ;;
      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--enable-$ac_useropt_orig"
	 ac_unrecognized_sep=', ';;
    esac
    eval enable_$ac_useropt=\$ac_optarg ;;

  -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
  | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \
  | --exec | --exe | --ex)
    ac_prev=exec_prefix ;;
  -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
  | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \
  | --exec=* | --exe=* | --ex=*)
    exec_prefix=$ac_optarg ;;

  -gas | --gas | --ga | --g)
    # Obsolete; use --with-gas.
    with_gas=yes ;;

  -help | --help | --hel | --he | -h)
    ac_init_help=long ;;
  -help=r* | --help=r* | --hel=r* | --he=r* | -hr*)
    ac_init_help=recursive ;;
  -help=s* | --help=s* | --hel=s* | --he=s* | -hs*)
    ac_init_help=short ;;

  -host | --host | --hos | --ho)
    ac_prev=host_alias ;;
  -host=* | --host=* | --hos=* | --ho=*)
    host_alias=$ac_optarg ;;

  -htmldir | --htmldir | --htmldi | --htmld | --html | --htm | --ht)
    ac_prev=htmldir ;;
  -htmldir=* | --htmldir=* | --htmldi=* | --htmld=* | --html=* | --htm=* \
  | --ht=*)
    htmldir=$ac_optarg ;;

  -includedir | --includedir | --includedi | --included | --include \
  | --includ | --inclu | --incl | --inc)
    ac_prev=includedir ;;
  -includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \
  | --includ=* | --inclu=* | --incl=* | --inc=*)
    includedir=$ac_optarg ;;

  -infodir | --infodir | --infodi | --infod | --info | --inf)
    ac_prev=infodir ;;
  -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
    infodir=$ac_optarg ;;

  -libdir | --libdir | --libdi | --libd)
    ac_prev=libdir ;;
  -libdir=* | --libdir=* | --libdi=* | --libd=*)
    libdir=$ac_optarg ;;

  -libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \
  | --libexe | --libex | --libe)
    ac_prev=libexecdir ;;
  -libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \
  | --libexe=* | --libex=* | --libe=*)
    libexecdir=$ac_optarg ;;

  -localedir | --localedir | --localedi | --localed | --locale)
    ac_prev=localedir ;;
  -localedir=* | --localedir=* | --localedi=* | --localed=* | --locale=*)
    localedir=$ac_optarg ;;

  -localstatedir | --localstatedir | --localstatedi | --localstated \
  | --localstate | --localstat | --localsta | --localst | --locals)
    ac_prev=localstatedir ;;
  -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
  | --localstate=* | --localstat=* | --localsta=* | --localst=* | --locals=*)
    localstatedir=$ac_optarg ;;

  -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
    ac_prev=mandir ;;
  -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
    mandir=$ac_optarg ;;

  -nfp | --nfp | --nf)
    # Obsolete; use --without-fp.
    with_fp=no ;;

  -no-create | --no-create | --no-creat | --no-crea | --no-cre \
  | --no-cr | --no-c | -n)
    no_create=yes ;;

  -no-recursion | --no-recursion | --no-recursio | --no-recursi \
  | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r)
    no_recursion=yes ;;

  -oldincludedir | --oldincludedir | --oldincludedi | --oldincluded \
  | --oldinclude | --oldinclud | --oldinclu | --oldincl | --oldinc \
  | --oldin | --oldi | --old | --ol | --o)
    ac_prev=oldincludedir ;;
  -oldincludedir=* | --oldincludedir=* | --oldincludedi=* | --oldincluded=* \
  | --oldinclude=* | --oldinclud=* | --oldinclu=* | --oldincl=* | --oldinc=* \
  | --oldin=* | --oldi=* | --old=* | --ol=* | --o=*)
    oldincludedir=$ac_optarg ;;

  -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
    ac_prev=prefix ;;
  -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
    prefix=$ac_optarg ;;

  -program-prefix | --program-prefix | --program-prefi | --program-pref \
  | --program-pre | --program-pr | --program-p)
    ac_prev=program_prefix ;;
  -program-prefix=* | --program-prefix=* | --program-prefi=* \
  | --program-pref=* | --program-pre=* | --program-pr=* | --program-p=*)
    program_prefix=$ac_optarg ;;

  -program-suffix | --program-suffix | --program-suffi | --program-suff \
  | --program-suf | --program-su | --program-s)
    ac_prev=program_suffix ;;
  -program-suffix=* | --program-suffix=* | --program-suffi=* \
  | --program-suff=* | --program-suf=* | --program-su=* | --program-s=*)
    program_suffix=$ac_optarg ;;

  -program-transform-name | --program-transform-name \
  | --program-transform-nam | --program-transform-na \
  | --program-transform-n | --program-transform- \
  | --program-transform | --program-transfor \
  | --program-transfo | --program-transf \
  | --program-trans | --program-tran \
  | --progr-tra | --program-tr | --program-t)
    ac_prev=program_transform_name ;;
  -program-transform-name=* | --program-transform-name=* \
  | --program-transform-nam=* | --program-transform-na=* \
  | --program-transform-n=* | --program-transform-=* \
  | --program-transform=* | --program-transfor=* \
  | --program-transfo=* | --program-transf=* \
  | --program-trans=* | --program-tran=* \
  | --progr-tra=* | --program-tr=* | --program-t=*)
    program_transform_name=$ac_optarg ;;

  -pdfdir | --pdfdir | --pdfdi | --pdfd | --pdf | --pd)
    ac_prev=pdfdir ;;
  -pdfdir=* | --pdfdir=* | --pdfdi=* | --pdfd=* | --pdf=* | --pd=*)
    pdfdir=$ac_optarg ;;

  -psdir | --psdir | --psdi | --psd | --ps)
    ac_prev=psdir ;;
  -psdir=* | --psdir=* | --psdi=* | --psd=* | --ps=*)
    psdir=$ac_optarg ;;

  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
  | -silent | --silent | --silen | --sile | --sil)
    silent=yes ;;

  -runstatedir | --runstatedir | --runstatedi | --runstated \
  | --runstate | --runstat | --runsta | --runst | --runs \
  | --run | --ru | --r)
    ac_prev=runstatedir ;;
  -runstatedir=* | --runstatedir=* | --runstatedi=* | --runstated=* \
  | --runstate=* | --runstat=* | --runsta=* | --runst=* | --runs=* \
  | --run=* | --ru=* | --r=*)
    runstatedir=$ac_optarg ;;

  -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
    ac_prev=sbindir ;;
  -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
  | --sbi=* | --sb=*)
    sbindir=$ac_optarg ;;

  -sharedstatedir | --sharedstatedir | --sharedstatedi \
  | --sharedstated | --sharedstate | --sharedstat | --sharedsta \
  | --sharedst | --shareds | --shared | --share | --shar \
  | --sha | --sh)
    ac_prev=sharedstatedir ;;
  -sharedstatedir=* | --sharedstatedir=* | --sharedstatedi=* \
  | --sharedstated=* | --sharedstate=* | --sharedstat=* | --sharedsta=* \
  | --sharedst=* | --shareds=* | --shared=* | --share=* | --shar=* \
  | --sha=* | --sh=*)
    sharedstatedir=$ac_optarg ;;

  -site | --site | --sit)
    ac_prev=site ;;
  -site=* | --site=* | --sit=*)
    site=$ac_optarg ;;

  -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
    ac_prev=srcdir ;;
  -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
    srcdir=$ac_optarg ;;

  -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
  | --syscon | --sysco | --sysc | --sys | --sy)
    ac_prev=sysconfdir ;;
  -sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \
  | --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*)
    sysconfdir=$ac_optarg ;;

  -target | --target | --targe | --targ | --tar | --ta | --t)
    ac_prev=target_alias ;;
  -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*)
    target_alias=$ac_optarg ;;

  -v | -verbose | --verbose | --verbos | --verbo | --verb)
    verbose=yes ;;

  -version | --version | --versio | --versi | --vers | -V)
    ac_init_version=: ;;

  -with-* | --with-*)
    ac_useropt=`expr "x$ac_option" : 'x-*with-\([^=]*\)'`
    # Reject names that are not valid shell variable names.
    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
      as_fn_error $? "invalid package name: \`$ac_useropt'"
    ac_useropt_orig=$ac_useropt
    ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
    case $ac_user_opts in
      *"
"with_$ac_useropt"
"*) ;;
      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--with-$ac_useropt_orig"
	 ac_unrecognized_sep=', ';;
    esac
    eval with_$ac_useropt=\$ac_optarg ;;

  -without-* | --without-*)
    ac_useropt=`expr "x$ac_option" : 'x-*without-\(.*\)'`
    # Reject names that are not valid shell variable names.
    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
      as_fn_error $? "invalid package name: \`$ac_useropt'"
    ac_useropt_orig=$ac_useropt
    ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
    case $ac_user_opts in
      *"
"with_$ac_useropt"
"*) ;;
      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--without-$ac_useropt_orig"
	 ac_unrecognized_sep=', ';;
    esac
    eval with_$ac_useropt=no ;;

  --x)
    # Obsolete; use --with-x.
    with_x=yes ;;

  -x-includes | --x-includes | --x-include | --x-includ | --x-inclu \
  | --x-incl | --x-inc | --x-in | --x-i)
    ac_prev=x_includes ;;
  -x-includes=* | --x-includes=* | --x-include=* | --x-includ=* | --x-inclu=* \
  | --x-incl=* | --x-inc=* | --x-in=* | --x-i=*)
    x_includes=$ac_optarg ;;

  -x-libraries | --x-libraries | --x-librarie | --x-librari \
  | --x-librar | --x-libra | --x-libr | --x-lib | --x-li | --x-l)
    ac_prev=x_libraries ;;
  -x-libraries=* | --x-libraries=* | --x-librarie=* | --x-librari=* \
  | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
    x_libraries=$ac_optarg ;;

  -*) as_fn_error $? "unrecognized option: \`$ac_option'
Try \`$0 --help' for more information"
    ;;

  *=*)
    ac_envvar=`expr "x$ac_option" : 'x\([^=]*\)='`
    # Reject names that are not valid shell variable names.
    case $ac_envvar in #(
      '' | [0-9]* | *[!_$as_cr_alnum]* )
      as_fn_error $? "invalid variable name: \`$ac_envvar'" ;;
    esac
    eval $ac_envvar=\$ac_optarg
    export $ac_envvar ;;

  *)
    # FIXME: should be removed in autoconf 3.0.
    printf "%s\n" "$as_me: WARNING: you should use --build, --host, --target" >&2
    expr "x$ac_option" : ".*[^-._$as_cr_alnum]" >/dev/null &&
      printf "%s\n" "$as_me: WARNING: invalid host type: $ac_option" >&2
    : "${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}"
    ;;

  esac
done

if test -n "$ac_prev"; then
  ac_option=--`echo $ac_prev | sed 's/_/-/g'`
  as_fn_error $? "missing argument to $ac_option"
fi

if test -n "$ac_unrecognized_opts"; then
  case $enable_option_checking in
    no) ;;
    fatal) as_fn_error $? "unrecognized options: $ac_unrecognized_opts" ;;
    *)     printf "%s\n" "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2 ;;
  esac
fi

# Check all directory arguments for consistency.
for ac_var in	exec_prefix prefix bindir sbindir libexecdir datarootdir \
		datadir sysconfdir sharedstatedir localstatedir includedir \
		oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
		libdir localedir mandir runstatedir
do
  eval ac_val=\$$ac_var
  # Remove trailing slashes.
  case $ac_val in
    */ )
      ac_val=`expr "X$ac_val" : 'X\(.*[^/]\)' \| "X$ac_val" : 'X\(.*\)'`
      eval $ac_var=\$ac_val;;
  esac
  # Be sure to have absolute directory names.
  case $ac_val in
    [\\/$]* | ?:[\\/]* )  continue;;
    NONE | '' ) case $ac_var in *prefix ) continue;; esac;;
  esac
  as_fn_error $? "expected an absolute directory name for --$ac_var: $ac_val"
done

# There might be people who depend on the old broken behavior: `$host'
# used to hold the argument of --host etc.
# FIXME: To remove some day.
build=$build_alias
host=$host_alias
target=$target_alias

# FIXME: To remove some day.
if test "x$host_alias" != x; then
  if test "x$build_alias" = x; then
    cross_compiling=maybe
  elif test "x$build_alias" != "x$host_alias"; then
    cross_compiling=yes
  fi
fi

ac_tool_prefix=
test -n "$host_alias" && ac_tool_prefix=$host_alias-

test "$silent" = yes && exec 6>/dev/null


ac_pwd=`pwd` && test -n "$ac_pwd" &&
ac_ls_di=`ls -di .` &&
ac_pwd_ls_di=`cd "$ac_pwd" && ls -di .` ||
  as_fn_error $? "working directory cannot be determined"
test "X$ac_ls_di" = "X$ac_pwd_ls_di" ||
  as_fn_error $? "pwd does not report name of working directory"


# Find the source files, if location was not specified.
if test -z "$srcdir"; then
  ac_srcdir_defaulted=yes
  # Try the directory containing this script, then the parent directory.
  ac_confdir=`$as_dirname -- "$as_myself" ||
$as_expr X"$as_myself" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
	 X"$as_myself" : 'X\(//\)[^/]' \| \
	 X"$as_myself" : 'X\(//\)$' \| \
	 X"$as_myself" : 'X\(/\)' \| . 2>/dev/null ||
printf "%s\n" X"$as_myself" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
	    s//\1/
	    q
	  }
	  /^X\(\/\/\)[^/].*/{
	    s//\1/
	    q
	  }
	  /^X\(\/\/\)$/{
	    s//\1/
	    q
	  }
	  /^X\(\/\).*/{
	    s//\1/
	    q
	  }
	  s/.*/./; q'`
  srcdir=$ac_confdir
  if test ! -r "$srcdir/$ac_unique_file"; then
    srcdir=..
  fi
else
  ac_srcdir_defaulted=no
fi
if test ! -r "$srcdir/$ac_unique_file"; then
  test "$ac_srcdir_defaulted" = yes && srcdir="$ac_confdir or .."
  as_fn_error $? "cannot find sources ($ac_unique_file) in $srcdir"
fi
ac_msg="sources are in $srcdir, but \`cd $srcdir' does not work"
ac_abs_confdir=`(
	cd "$srcdir" && test -r "./$ac_unique_file" || as_fn_error $? "$ac_msg"
	pwd)`
# When building in place, set srcdir=.
if test "$ac_abs_confdir" = "$ac_pwd"; then
  srcdir=.
fi
# Remove unnecessary trailing slashes from srcdir.
# Double slashes in file names in object file debugging info
# mess up M-x gdb in Emacs.
case $srcdir in
*/) srcdir=`expr "X$srcdir" : 'X\(.*[^/]\)' \| "X$srcdir" : 'X\(.*\)'`;;
esac
for ac_var in $ac_precious_vars; do
  eval ac_env_${ac_var}_set=\${${ac_var}+set}
  eval ac_env_${ac_var}_value=\$${ac_var}
  eval ac_cv_env_${ac_var}_set=\${${ac_var}+set}
  eval ac_cv_env_${ac_var}_value=\$${ac_var}
done

#
# Report the --help message.
#
if test "$ac_init_help" = "long"; then
  # Omit some internal or obsolete options to make the list less imposing.
  # This message is too long to be a string in the A/UX 3.1 sh.
  cat <<_ACEOF
\`configure' configures click 2.1 to adapt to many kinds of systems.

Usage: $0 [OPTION]... [VAR=VALUE]...

To assign environment variables (e.g., CC, CFLAGS...), specify them as
VAR=VALUE.  See below for descriptions of some of the useful variables.

Defaults for the options are specified in brackets.

Configuration:
  -h, --help              display this help and exit
      --help=short        display options specific to this package
      --help=recursive    display the short help of all the included packages
  -V, --version           display version information and exit
  -q, --quiet, --silent   do not print \`checking ...' messages
      --cache-file=FILE   cache test results in FILE [disabled]
  -C, --config-cache      alias for \`--cache-file=config.cache'
  -n, --no-create         do not create output files
      --srcdir=DIR        find the sources in DIR [configure dir or \`..']

Installation directories:
  --prefix=PREFIX         install architecture-independent files in PREFIX
                          [$ac_default_prefix]
  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
                          [PREFIX]

By default, \`make install' will install all the files in
\`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc.  You can specify
an installation prefix other than \`$ac_default_prefix' using \`--prefix',
for instance \`--prefix=\$HOME'.

For better control, use the options below.

Fine tuning of the installation directories:
  --bindir=DIR            user executables [EPREFIX/bin]
  --sbindir=DIR           system admin executables [EPREFIX/sbin]
  --libexecdir=DIR        program executables [EPREFIX/libexec]
  --sysconfdir=DIR        read-only single-machine data [PREFIX/etc]
  --sharedstatedir=DIR    modifiable architecture-independent data [PREFIX/com]
  --localstatedir=DIR     modifiable single-machine data [PREFIX/var]
  --runstatedir=DIR       modifiable per-process data [LOCALSTATEDIR/run]
  --libdir=DIR            object code libraries [EPREFIX/lib]
  --includedir=DIR        C header files [PREFIX/include]
  --oldincludedir=DIR     C header files for non-gcc [/usr/include]
  --datarootdir=DIR       read-only arch.-independent data root [PREFIX/share]
  --datadir=DIR           read-only architecture-independent data [DATAROOTDIR]
  --infodir=DIR           info documentation [DATAROOTDIR/info]
  --localedir=DIR         locale-dependent data [DATAROOTDIR/locale]
  --mandir=DIR            man documentation [DATAROOTDIR/man]
  --docdir=DIR            documentation root [DATAROOTDIR/doc/click]
  --htmldir=DIR           html documentation [DOCDIR]
  --dvidir=DIR            dvi documentation [DOCDIR]
  --pdfdir=DIR            pdf documentation [DOCDIR]
  --psdir=DIR             ps documentation [DOCDIR]
_ACEOF

  cat <<\_ACEOF

System types:
  --build=BUILD     configure for building on BUILD [guessed]
  --host=HOST       cross-compile to build programs to run on HOST [BUILD]
  --target=TARGET   configure for building compilers for TARGET [HOST]
_ACEOF
fi

if test -n "$ac_init_help"; then
  case $ac_init_help in
     short | recursive ) echo "Configuration of click 2.1:";;
   esac
  cat <<\_ACEOF

Optional Features:
  --disable-option-checking  ignore unrecognized --enable/--with options
  --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
  --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
  --disable-userlevel     disable user-level driver
    --enable-user-multithread
                          support userlevel multithreading
    --disable-fullpush-nonatomic
                          disable nonatomic access to packet when
                          single-threaded fullpush context is detected
    --disable-batch       disable batching support
    --disable-verbose-batch
                          disable warnings and information about batching
    --enable-auto-batch=[list|jump|port]
                          make vanilla elements batch-compatible automatically
    --enable-netmap-pool  use netmap buffers instead of standard Click buffers
    --disable-bpf         Compile without BPF support
    --enable-rand-align   enable random alignment of element
    --enable-select=[select|poll|kqueue]
                          set file descriptor wait mechanism
    --disable-select      do not use select()
    --disable-poll        do not use poll()
    --disable-kqueue      do not use kqueue()
    --enable-dpdk         use DPDK
      --enable-dpdk-pool  use DPDK buffer instead of standard Click buffer
      --enable-dpdk-xchg  use DPDK XCHG API
      --enable-dpdk-packet
                          Click packets are DPDK packet
      --disable-dpdk-softqueue
                          Do not use internal software queue in TX to buffer
                          packets before flushing.
      --enable-flow-api   Support for the HW flow classification API. Also
                          needs DPDK>=20.02
      --disable-click-pool
                          allow usage of Click Packet pool. It will still only
                          be effectively enabled in specific (but most) cases,
                          see packet.hh
    --disable-pool-inlining
                          Do not optimize pool_prepare_data_burst function
                          before data structure reordering done at the IR
                          level.
    --enable-inlined-allanno
                          Inline AllAnno struct into Packet class,
                          facilitating the data structure reordering.
    --disable-zerocopy    disable Zero Copy
    --disable-clone       disable packet cloning
    --disable-rsspp       disable RSS++ (enabled if --enable-cpu-load by
                          default)
  --enable-linuxmodule    disable Linux kernel driver
    --disable-fixincludes do not patch Linux kernel headers for C++
    --enable-multithread  support kernel multithreading
    --enable-warp9        reduce PollDevice functionality for speed
    --enable-kassert      enable kernel assertions
    --enable-adaptive     use adaptive scheduler to flexibly arbitrate between
                          Click and the kernel (EXPERIMENTAL)
    --disable-linux-symbols
                          do not export Click symbols (breaks packages)
  --enable-bsdmodule      enable FreeBSD kernel driver (EXPERIMENTAL)
    --disable-netisr      disable NETISR scheduling in BSD
  --enable-nsclick        enable NS simulator driver
  --enable-minios         enable MiniOS application
  --enable-all-elements   include all provided element groups
  --disable-analysis      do not include elements for network analysis
  --disable-app           do not include application-level elements
  --disable-aqm           do not include active queue management elements
  --disable-ethernet      do not include Ethernet elements
  --enable-etherswitch    include Ethernet switch elements
  --enable-flow           include Enable flow system and elements
  --enable-ctx            include Context-based elements
  --enable-grid           include Grid elements (see FAQ)
  --disable-icmp          do not include ICMP elements
  --disable-ip            do not include IP elements
  --enable-ip6            include IPv6 elements
  --enable-ipsec          include IP security elements
  --enable-local          include local elements
  --enable-radio          include radio elements
  --enable-research       include research elements
  --disable-simple        do not include simple versions of other elements
  --disable-standard      do not include standard elements
  --disable-tcpudp        do not include TCP and UDP elements
  --disable-test          do not include regression test elements
  --disable-threads       do not include thread management elements
  --enable-tunnel         include tunnelling elements
  --enable-wifi           include wifi elements and support
  --enable-experimental   enable experimental elements in normal groups
  --enable-skip-elements=ELTS
                          disable comma-separated elements
  --enable-smaller-code   generate smaller code (sometimes slower)
  --disable-int64         disable 64-bit integer support
  --enable-nanotimestamp  enable nanosecond timestamps (default if
                          clock_gettime is available)
  --enable-simtime        enable support for simulated timing
  --enable-user-timestamp enable support for user-provided clock system
  --enable-bound-port-transfer
                          enable port transfer function ptr optimization
  Optional features about flow and context:
    --disable-ctx-global-timeout
                          disable sloppy CTX timeouts. Enabled if CTX is
                          enabled by default.
    --disable-flow-atomic use non-atomic flow reference counting
    --enable-flow-dynamic enable dynamic reference counting to automatically
                          acquire and relealse flow control blocksic flow
                          system
    --disable-flow-structure
                          do not free classifier nodes in pool, mark them as
                          released to somehow keep the receive strucutre
                          intact
    --enable-flow-hash=[reset|keep|epoch]
                          set flow hashtable release mechanism
  --enable-tools=WHERE    enable tools (host/build/mixed/no) [[mixed]]
  --disable-dynamic-linking
                          disable dynamic linking
  --enable-stats[=LEVEL]  enable statistics collection
  --disable-stride        disable stride scheduler
  --enable-task-heap      use heap for task list
  --enable-task-stats     Keep track of task statistics, used for automatic
                          balancing of tasks among threads
  --enable-cpu-load       Keep track of CPU usage using an approximation.
                          Useful when using polling keeping the CPU at 100%
  --enable-dmalloc        enable debugging malloc
  --enable-hash-iterator-epochs
                          hash iterator epochs
  --enable-force-expensive
                          force expensive packet operations
  --enable-valgrind       extra support for debugging with valgrind
  --enable-schedule-debugging[=WHAT] enable Click scheduler debugging
                          (no/yes/extra) [yes]
  --enable-hash-allocator-poisoning      enable HashAllocator block poisoning
  --enable-portable-binary
                          disable compiler optimizations that would produce
                          unportable binaries
  --enable-intel-cpu      enable Intel-specific machine instructions
  --disable-avx2          Do not check whether AVX2 is enabled
  --disable-sse42         Do not check whether SSE4.2 is enabled
  --enable-atomic-builtins
                          Use GCC builtins atomic functions instead of Click
                          own implementation. It should be always used in
                          non-x86 systems. It requires GCC >= 4.7.0

Optional Packages:
  --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
  --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
  --with-xen[=PATH]       Xen source code is in PATH
  --with-minios[=PATH]    MiniOS source code is in PATH
  --with-newlib[=PATH]    Newlib is installed in PATH
  --with-lwip[=PATH]      Lwip is installed in PATH
  --with-linux[=PATH]     Linux source code is in PATH
  --with-linux-map[=FILE] filename for Linux System.map [LINUXDIR/System.map]
  --with-freebsd[=SRC,INC] FreeBSD source code is in SRC [/usr/src/sys],
                          include directory is INC [/usr/include]
  --with-numa             enable numa [yes]
  --with-netmap           enable netmap [no]
  --with-proper[=PREFIX]  use PlanetLab Proper library (optional)
  --with-expat[=PREFIX]   locate expat XML library (optional)

Some influential environment variables:
  CC          C compiler command
  CFLAGS      C compiler flags
  LDFLAGS     linker flags, e.g. -L<lib dir> if you have libraries in a
              nonstandard directory <lib dir>
  LIBS        libraries to pass to the linker, e.g. -l<library>
  CPPFLAGS    (Objective) C/C++ preprocessor flags, e.g. -I<include dir> if
              you have headers in a nonstandard directory <include dir>
  CPP         C preprocessor
  CXX         C++ compiler command
  CXXFLAGS    C++ compiler flags
  CXXCPP      C++ preprocessor

Use these variables to override the choices made by `configure' or to help
it to find libraries and programs with nonstandard names/locations.

Report bugs to the package provider.
_ACEOF
ac_status=$?
fi

if test "$ac_init_help" = "recursive"; then
  # If there are subdirs, report their specific --help.
  for ac_dir in : $ac_subdirs_all; do test "x$ac_dir" = x: && continue
    test -d "$ac_dir" ||
      { cd "$srcdir" && ac_pwd=`pwd` && srcdir=. && test -d "$ac_dir"; } ||
      continue
    ac_builddir=.

case "$ac_dir" in
.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
*)
  ac_dir_suffix=/`printf "%s\n" "$ac_dir" | sed 's|^\.[\\/]||'`
  # A ".." for each directory in $ac_dir_suffix.
  ac_top_builddir_sub=`printf "%s\n" "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
  case $ac_top_builddir_sub in
  "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
  *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
  esac ;;
esac
ac_abs_top_builddir=$ac_pwd
ac_abs_builddir=$ac_pwd$ac_dir_suffix
# for backward compatibility:
ac_top_builddir=$ac_top_build_prefix

case $srcdir in
  .)  # We are building in place.
    ac_srcdir=.
    ac_top_srcdir=$ac_top_builddir_sub
    ac_abs_top_srcdir=$ac_pwd ;;
  [\\/]* | ?:[\\/]* )  # Absolute name.
    ac_srcdir=$srcdir$ac_dir_suffix;
    ac_top_srcdir=$srcdir
    ac_abs_top_srcdir=$srcdir ;;
  *) # Relative name.
    ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
    ac_top_srcdir=$ac_top_build_prefix$srcdir
    ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
esac
ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix

    cd "$ac_dir" || { ac_status=$?; continue; }
    # Check for configure.gnu first; this name is used for a wrapper for
    # Metaconfig's "Configure" on case-insensitive file systems.
    if test -f "$ac_srcdir/configure.gnu"; then
      echo &&
      $SHELL "$ac_srcdir/configure.gnu" --help=recursive
    elif test -f "$ac_srcdir/configure"; then
      echo &&
      $SHELL "$ac_srcdir/configure" --help=recursive
    else
      printf "%s\n" "$as_me: WARNING: no configuration information is in $ac_dir" >&2
    fi || ac_status=$?
    cd "$ac_pwd" || { ac_status=$?; break; }
  done
fi

test -n "$ac_init_help" && exit $ac_status
if $ac_init_version; then
  cat <<\_ACEOF
click configure 2.1
generated by GNU Autoconf 2.71

Copyright (C) 2021 Free Software Foundation, Inc.
This configure script is free software; the Free Software Foundation
gives unlimited permission to copy, distribute and modify it.
_ACEOF
  exit
fi

## ------------------------ ##
## Autoconf initialization. ##
## ------------------------ ##

# ac_fn_c_try_compile LINENO
# --------------------------
# Try to compile conftest.$ac_ext, and return whether this succeeded.
ac_fn_c_try_compile ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  rm -f conftest.$ac_objext conftest.beam
  if { { ac_try="$ac_compile"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
printf "%s\n" "$ac_try_echo"; } >&5
  (eval "$ac_compile") 2>conftest.err
  ac_status=$?
  if test -s conftest.err; then
    grep -v '^ *+' conftest.err >conftest.er1
    cat conftest.er1 >&5
    mv -f conftest.er1 conftest.err
  fi
  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; } && {
	 test -z "$ac_c_werror_flag" ||
	 test ! -s conftest.err
       } && test -s conftest.$ac_objext
then :
  ac_retval=0
else $as_nop
  printf "%s\n" "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

	ac_retval=1
fi
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
  as_fn_set_status $ac_retval

} # ac_fn_c_try_compile

# ac_fn_c_check_header_compile LINENO HEADER VAR INCLUDES
# -------------------------------------------------------
# Tests whether HEADER exists and can be compiled using the include files in
# INCLUDES, setting the cache variable VAR accordingly.
ac_fn_c_check_header_compile ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
printf %s "checking for $2... " >&6; }
if eval test \${$3+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$4
#include <$2>
_ACEOF
if ac_fn_c_try_compile "$LINENO"
then :
  eval "$3=yes"
else $as_nop
  eval "$3=no"
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
eval ac_res=\$$3
	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
printf "%s\n" "$ac_res" >&6; }
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno

} # ac_fn_c_check_header_compile

# ac_fn_c_try_cpp LINENO
# ----------------------
# Try to preprocess conftest.$ac_ext, and return whether this succeeded.
ac_fn_c_try_cpp ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  if { { ac_try="$ac_cpp conftest.$ac_ext"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
printf "%s\n" "$ac_try_echo"; } >&5
  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
  ac_status=$?
  if test -s conftest.err; then
    grep -v '^ *+' conftest.err >conftest.er1
    cat conftest.er1 >&5
    mv -f conftest.er1 conftest.err
  fi
  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; } > conftest.i && {
	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
	 test ! -s conftest.err
       }
then :
  ac_retval=0
else $as_nop
  printf "%s\n" "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

    ac_retval=1
fi
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
  as_fn_set_status $ac_retval

} # ac_fn_c_try_cpp

# ac_fn_cxx_try_compile LINENO
# ----------------------------
# Try to compile conftest.$ac_ext, and return whether this succeeded.
ac_fn_cxx_try_compile ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  rm -f conftest.$ac_objext conftest.beam
  if { { ac_try="$ac_compile"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
printf "%s\n" "$ac_try_echo"; } >&5
  (eval "$ac_compile") 2>conftest.err
  ac_status=$?
  if test -s conftest.err; then
    grep -v '^ *+' conftest.err >conftest.er1
    cat conftest.er1 >&5
    mv -f conftest.er1 conftest.err
  fi
  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; } && {
	 test -z "$ac_cxx_werror_flag" ||
	 test ! -s conftest.err
       } && test -s conftest.$ac_objext
then :
  ac_retval=0
else $as_nop
  printf "%s\n" "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

	ac_retval=1
fi
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
  as_fn_set_status $ac_retval

} # ac_fn_cxx_try_compile

# ac_fn_cxx_try_link LINENO
# -------------------------
# Try to link conftest.$ac_ext, and return whether this succeeded.
ac_fn_cxx_try_link ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  rm -f conftest.$ac_objext conftest.beam conftest$ac_exeext
  if { { ac_try="$ac_link"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
printf "%s\n" "$ac_try_echo"; } >&5
  (eval "$ac_link") 2>conftest.err
  ac_status=$?
  if test -s conftest.err; then
    grep -v '^ *+' conftest.err >conftest.er1
    cat conftest.er1 >&5
    mv -f conftest.er1 conftest.err
  fi
  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; } && {
	 test -z "$ac_cxx_werror_flag" ||
	 test ! -s conftest.err
       } && test -s conftest$ac_exeext && {
	 test "$cross_compiling" = yes ||
	 test -x conftest$ac_exeext
       }
then :
  ac_retval=0
else $as_nop
  printf "%s\n" "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

	ac_retval=1
fi
  # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
  # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
  # interfere with the next link command; also delete a directory that is
  # left behind by Apple's compiler.  We do this before executing the actions.
  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
  as_fn_set_status $ac_retval

} # ac_fn_cxx_try_link

# ac_fn_cxx_try_cpp LINENO
# ------------------------
# Try to preprocess conftest.$ac_ext, and return whether this succeeded.
ac_fn_cxx_try_cpp ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  if { { ac_try="$ac_cpp conftest.$ac_ext"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
printf "%s\n" "$ac_try_echo"; } >&5
  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
  ac_status=$?
  if test -s conftest.err; then
    grep -v '^ *+' conftest.err >conftest.er1
    cat conftest.er1 >&5
    mv -f conftest.er1 conftest.err
  fi
  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; } > conftest.i && {
	 test -z "$ac_cxx_preproc_warn_flag$ac_cxx_werror_flag" ||
	 test ! -s conftest.err
       }
then :
  ac_retval=0
else $as_nop
  printf "%s\n" "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

    ac_retval=1
fi
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
  as_fn_set_status $ac_retval

} # ac_fn_cxx_try_cpp

# ac_fn_cxx_try_run LINENO
# ------------------------
# Try to run conftest.$ac_ext, and return whether this succeeded. Assumes that
# executables *can* be run.
ac_fn_cxx_try_run ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  if { { ac_try="$ac_link"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
printf "%s\n" "$ac_try_echo"; } >&5
  (eval "$ac_link") 2>&5
  ac_status=$?
  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; } && { ac_try='./conftest$ac_exeext'
  { { case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
printf "%s\n" "$ac_try_echo"; } >&5
  (eval "$ac_try") 2>&5
  ac_status=$?
  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }; }
then :
  ac_retval=0
else $as_nop
  printf "%s\n" "$as_me: program exited with status $ac_status" >&5
       printf "%s\n" "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

       ac_retval=$ac_status
fi
  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
  as_fn_set_status $ac_retval

} # ac_fn_cxx_try_run

# ac_fn_cxx_check_header_compile LINENO HEADER VAR INCLUDES
# ---------------------------------------------------------
# Tests whether HEADER exists and can be compiled using the include files in
# INCLUDES, setting the cache variable VAR accordingly.
ac_fn_cxx_check_header_compile ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
printf %s "checking for $2... " >&6; }
if eval test \${$3+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$4
#include <$2>
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  eval "$3=yes"
else $as_nop
  eval "$3=no"
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
eval ac_res=\$$3
	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
printf "%s\n" "$ac_res" >&6; }
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno

} # ac_fn_cxx_check_header_compile

# ac_fn_check_decl LINENO SYMBOL VAR INCLUDES EXTRA-OPTIONS FLAG-VAR
# ------------------------------------------------------------------
# Tests whether SYMBOL is declared in INCLUDES, setting cache variable VAR
# accordingly. Pass EXTRA-OPTIONS to the compiler, using FLAG-VAR.
ac_fn_check_decl ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  as_decl_name=`echo $2|sed 's/ *(.*//'`
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $as_decl_name is declared" >&5
printf %s "checking whether $as_decl_name is declared... " >&6; }
if eval test \${$3+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  as_decl_use=`echo $2|sed -e 's/(/((/' -e 's/)/) 0&/' -e 's/,/) 0& (/g'`
  eval ac_save_FLAGS=\$$6
  as_fn_append $6 " $5"
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$4
int
main (void)
{
#ifndef $as_decl_name
#ifdef __cplusplus
  (void) $as_decl_use;
#else
  (void) $as_decl_name;
#endif
#endif

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  eval "$3=yes"
else $as_nop
  eval "$3=no"
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
  eval $6=\$ac_save_FLAGS

fi
eval ac_res=\$$3
	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
printf "%s\n" "$ac_res" >&6; }
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno

} # ac_fn_check_decl

# ac_fn_c_try_link LINENO
# -----------------------
# Try to link conftest.$ac_ext, and return whether this succeeded.
ac_fn_c_try_link ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  rm -f conftest.$ac_objext conftest.beam conftest$ac_exeext
  if { { ac_try="$ac_link"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
printf "%s\n" "$ac_try_echo"; } >&5
  (eval "$ac_link") 2>conftest.err
  ac_status=$?
  if test -s conftest.err; then
    grep -v '^ *+' conftest.err >conftest.er1
    cat conftest.er1 >&5
    mv -f conftest.er1 conftest.err
  fi
  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; } && {
	 test -z "$ac_c_werror_flag" ||
	 test ! -s conftest.err
       } && test -s conftest$ac_exeext && {
	 test "$cross_compiling" = yes ||
	 test -x conftest$ac_exeext
       }
then :
  ac_retval=0
else $as_nop
  printf "%s\n" "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

	ac_retval=1
fi
  # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
  # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
  # interfere with the next link command; also delete a directory that is
  # left behind by Apple's compiler.  We do this before executing the actions.
  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
  as_fn_set_status $ac_retval

} # ac_fn_c_try_link

# ac_fn_c_check_func LINENO FUNC VAR
# ----------------------------------
# Tests whether FUNC exists, setting the cache variable VAR accordingly
ac_fn_c_check_func ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
printf %s "checking for $2... " >&6; }
if eval test \${$3+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
/* Define $2 to an innocuous variant, in case <limits.h> declares $2.
   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
#define $2 innocuous_$2

/* System header to define __stub macros and hopefully few prototypes,
   which can conflict with char $2 (); below.  */

#include <limits.h>
#undef $2

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char $2 ();
/* The GNU C library defines this for functions which it implements
    to always fail with ENOSYS.  Some functions are actually named
    something starting with __ and the normal name is an alias.  */
#if defined __stub_$2 || defined __stub___$2
choke me
#endif

int
main (void)
{
return $2 ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"
then :
  eval "$3=yes"
else $as_nop
  eval "$3=no"
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam \
    conftest$ac_exeext conftest.$ac_ext
fi
eval ac_res=\$$3
	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
printf "%s\n" "$ac_res" >&6; }
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno

} # ac_fn_c_check_func

# ac_fn_cxx_compute_int LINENO EXPR VAR INCLUDES
# ----------------------------------------------
# Tries to find the compile-time value of EXPR in a program that includes
# INCLUDES, setting VAR accordingly. Returns whether the value could be
# computed
ac_fn_cxx_compute_int ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  if test "$cross_compiling" = yes; then
    # Depending upon the size, compute the lo and hi bounds.
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$4
int
main (void)
{
static int test_array [1 - 2 * !(($2) >= 0)];
test_array [0] = 0;
return test_array [0];

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_lo=0 ac_mid=0
  while :; do
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$4
int
main (void)
{
static int test_array [1 - 2 * !(($2) <= $ac_mid)];
test_array [0] = 0;
return test_array [0];

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_hi=$ac_mid; break
else $as_nop
  as_fn_arith $ac_mid + 1 && ac_lo=$as_val
			if test $ac_lo -le $ac_mid; then
			  ac_lo= ac_hi=
			  break
			fi
			as_fn_arith 2 '*' $ac_mid + 1 && ac_mid=$as_val
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
  done
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$4
int
main (void)
{
static int test_array [1 - 2 * !(($2) < 0)];
test_array [0] = 0;
return test_array [0];

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_hi=-1 ac_mid=-1
  while :; do
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$4
int
main (void)
{
static int test_array [1 - 2 * !(($2) >= $ac_mid)];
test_array [0] = 0;
return test_array [0];

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_lo=$ac_mid; break
else $as_nop
  as_fn_arith '(' $ac_mid ')' - 1 && ac_hi=$as_val
			if test $ac_mid -le $ac_hi; then
			  ac_lo= ac_hi=
			  break
			fi
			as_fn_arith 2 '*' $ac_mid && ac_mid=$as_val
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
  done
else $as_nop
  ac_lo= ac_hi=
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
# Binary search between lo and hi bounds.
while test "x$ac_lo" != "x$ac_hi"; do
  as_fn_arith '(' $ac_hi - $ac_lo ')' / 2 + $ac_lo && ac_mid=$as_val
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$4
int
main (void)
{
static int test_array [1 - 2 * !(($2) <= $ac_mid)];
test_array [0] = 0;
return test_array [0];

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_hi=$ac_mid
else $as_nop
  as_fn_arith '(' $ac_mid ')' + 1 && ac_lo=$as_val
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
done
case $ac_lo in #((
?*) eval "$3=\$ac_lo"; ac_retval=0 ;;
'') ac_retval=1 ;;
esac
  else
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$4
static long int longval (void) { return $2; }
static unsigned long int ulongval (void) { return $2; }
#include <stdio.h>
#include <stdlib.h>
int
main (void)
{

  FILE *f = fopen ("conftest.val", "w");
  if (! f)
    return 1;
  if (($2) < 0)
    {
      long int i = longval ();
      if (i != ($2))
	return 1;
      fprintf (f, "%ld", i);
    }
  else
    {
      unsigned long int i = ulongval ();
      if (i != ($2))
	return 1;
      fprintf (f, "%lu", i);
    }
  /* Do not output a trailing newline, as this causes \r\n confusion
     on some platforms.  */
  return ferror (f) || fclose (f) != 0;

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_run "$LINENO"
then :
  echo >>conftest.val; read $3 <conftest.val; ac_retval=0
else $as_nop
  ac_retval=1
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
  conftest.$ac_objext conftest.beam conftest.$ac_ext
rm -f conftest.val

  fi
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
  as_fn_set_status $ac_retval

} # ac_fn_cxx_compute_int

# ac_fn_cxx_check_type LINENO TYPE VAR INCLUDES
# ---------------------------------------------
# Tests whether TYPE exists after having included INCLUDES, setting cache
# variable VAR accordingly.
ac_fn_cxx_check_type ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
printf %s "checking for $2... " >&6; }
if eval test \${$3+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  eval "$3=no"
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$4
int
main (void)
{
if (sizeof ($2))
	 return 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$4
int
main (void)
{
if (sizeof (($2)))
	    return 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :

else $as_nop
  eval "$3=yes"
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
eval ac_res=\$$3
	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
printf "%s\n" "$ac_res" >&6; }
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno

} # ac_fn_cxx_check_type

# ac_fn_cxx_check_func LINENO FUNC VAR
# ------------------------------------
# Tests whether FUNC exists, setting the cache variable VAR accordingly
ac_fn_cxx_check_func ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
printf %s "checking for $2... " >&6; }
if eval test \${$3+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
/* Define $2 to an innocuous variant, in case <limits.h> declares $2.
   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
#define $2 innocuous_$2

/* System header to define __stub macros and hopefully few prototypes,
   which can conflict with char $2 (); below.  */

#include <limits.h>
#undef $2

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char $2 ();
/* The GNU C library defines this for functions which it implements
    to always fail with ENOSYS.  Some functions are actually named
    something starting with __ and the normal name is an alias.  */
#if defined __stub_$2 || defined __stub___$2
choke me
#endif

int
main (void)
{
return $2 ();
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"
then :
  eval "$3=yes"
else $as_nop
  eval "$3=no"
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam \
    conftest$ac_exeext conftest.$ac_ext
fi
eval ac_res=\$$3
	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
printf "%s\n" "$ac_res" >&6; }
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno

} # ac_fn_cxx_check_func

# ac_fn_c_try_run LINENO
# ----------------------
# Try to run conftest.$ac_ext, and return whether this succeeded. Assumes that
# executables *can* be run.
ac_fn_c_try_run ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  if { { ac_try="$ac_link"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
printf "%s\n" "$ac_try_echo"; } >&5
  (eval "$ac_link") 2>&5
  ac_status=$?
  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; } && { ac_try='./conftest$ac_exeext'
  { { case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
printf "%s\n" "$ac_try_echo"; } >&5
  (eval "$ac_try") 2>&5
  ac_status=$?
  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }; }
then :
  ac_retval=0
else $as_nop
  printf "%s\n" "$as_me: program exited with status $ac_status" >&5
       printf "%s\n" "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

       ac_retval=$ac_status
fi
  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
  as_fn_set_status $ac_retval

} # ac_fn_c_try_run

# ac_fn_c_compute_int LINENO EXPR VAR INCLUDES
# --------------------------------------------
# Tries to find the compile-time value of EXPR in a program that includes
# INCLUDES, setting VAR accordingly. Returns whether the value could be
# computed
ac_fn_c_compute_int ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  if test "$cross_compiling" = yes; then
    # Depending upon the size, compute the lo and hi bounds.
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$4
int
main (void)
{
static int test_array [1 - 2 * !(($2) >= 0)];
test_array [0] = 0;
return test_array [0];

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"
then :
  ac_lo=0 ac_mid=0
  while :; do
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$4
int
main (void)
{
static int test_array [1 - 2 * !(($2) <= $ac_mid)];
test_array [0] = 0;
return test_array [0];

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"
then :
  ac_hi=$ac_mid; break
else $as_nop
  as_fn_arith $ac_mid + 1 && ac_lo=$as_val
			if test $ac_lo -le $ac_mid; then
			  ac_lo= ac_hi=
			  break
			fi
			as_fn_arith 2 '*' $ac_mid + 1 && ac_mid=$as_val
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
  done
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$4
int
main (void)
{
static int test_array [1 - 2 * !(($2) < 0)];
test_array [0] = 0;
return test_array [0];

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"
then :
  ac_hi=-1 ac_mid=-1
  while :; do
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$4
int
main (void)
{
static int test_array [1 - 2 * !(($2) >= $ac_mid)];
test_array [0] = 0;
return test_array [0];

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"
then :
  ac_lo=$ac_mid; break
else $as_nop
  as_fn_arith '(' $ac_mid ')' - 1 && ac_hi=$as_val
			if test $ac_mid -le $ac_hi; then
			  ac_lo= ac_hi=
			  break
			fi
			as_fn_arith 2 '*' $ac_mid && ac_mid=$as_val
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
  done
else $as_nop
  ac_lo= ac_hi=
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
# Binary search between lo and hi bounds.
while test "x$ac_lo" != "x$ac_hi"; do
  as_fn_arith '(' $ac_hi - $ac_lo ')' / 2 + $ac_lo && ac_mid=$as_val
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$4
int
main (void)
{
static int test_array [1 - 2 * !(($2) <= $ac_mid)];
test_array [0] = 0;
return test_array [0];

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"
then :
  ac_hi=$ac_mid
else $as_nop
  as_fn_arith '(' $ac_mid ')' + 1 && ac_lo=$as_val
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
done
case $ac_lo in #((
?*) eval "$3=\$ac_lo"; ac_retval=0 ;;
'') ac_retval=1 ;;
esac
  else
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$4
static long int longval (void) { return $2; }
static unsigned long int ulongval (void) { return $2; }
#include <stdio.h>
#include <stdlib.h>
int
main (void)
{

  FILE *f = fopen ("conftest.val", "w");
  if (! f)
    return 1;
  if (($2) < 0)
    {
      long int i = longval ();
      if (i != ($2))
	return 1;
      fprintf (f, "%ld", i);
    }
  else
    {
      unsigned long int i = ulongval ();
      if (i != ($2))
	return 1;
      fprintf (f, "%lu", i);
    }
  /* Do not output a trailing newline, as this causes \r\n confusion
     on some platforms.  */
  return ferror (f) || fclose (f) != 0;

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_run "$LINENO"
then :
  echo >>conftest.val; read $3 <conftest.val; ac_retval=0
else $as_nop
  ac_retval=1
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
  conftest.$ac_objext conftest.beam conftest.$ac_ext
rm -f conftest.val

  fi
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
  as_fn_set_status $ac_retval

} # ac_fn_c_compute_int
ac_configure_args_raw=
for ac_arg
do
  case $ac_arg in
  *\'*)
    ac_arg=`printf "%s\n" "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
  esac
  as_fn_append ac_configure_args_raw " '$ac_arg'"
done

case $ac_configure_args_raw in
  *$as_nl*)
    ac_safe_unquote= ;;
  *)
    ac_unsafe_z='|&;<>()$`\\"*?[ ''	' # This string ends in space, tab.
    ac_unsafe_a="$ac_unsafe_z#~"
    ac_safe_unquote="s/ '\\([^$ac_unsafe_a][^$ac_unsafe_z]*\\)'/ \\1/g"
    ac_configure_args_raw=`      printf "%s\n" "$ac_configure_args_raw" | sed "$ac_safe_unquote"`;;
esac

cat >config.log <<_ACEOF
This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.

It was created by click $as_me 2.1, which was
generated by GNU Autoconf 2.71.  Invocation command line was

  $ $0$ac_configure_args_raw

_ACEOF
exec 5>>config.log
{
cat <<_ASUNAME
## --------- ##
## Platform. ##
## --------- ##

hostname = `(hostname || uname -n) 2>/dev/null | sed 1q`
uname -m = `(uname -m) 2>/dev/null || echo unknown`
uname -r = `(uname -r) 2>/dev/null || echo unknown`
uname -s = `(uname -s) 2>/dev/null || echo unknown`
uname -v = `(uname -v) 2>/dev/null || echo unknown`

/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null || echo unknown`
/bin/uname -X     = `(/bin/uname -X) 2>/dev/null     || echo unknown`

/bin/arch              = `(/bin/arch) 2>/dev/null              || echo unknown`
/usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null       || echo unknown`
/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null || echo unknown`
/usr/bin/hostinfo      = `(/usr/bin/hostinfo) 2>/dev/null      || echo unknown`
/bin/machine           = `(/bin/machine) 2>/dev/null           || echo unknown`
/usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null       || echo unknown`
/bin/universe          = `(/bin/universe) 2>/dev/null          || echo unknown`

_ASUNAME

as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    printf "%s\n" "PATH: $as_dir"
  done
IFS=$as_save_IFS

} >&5

cat >&5 <<_ACEOF


## ----------- ##
## Core tests. ##
## ----------- ##

_ACEOF


# Keep a trace of the command line.
# Strip out --no-create and --no-recursion so they do not pile up.
# Strip out --silent because we don't want to record it for future runs.
# Also quote any args containing shell meta-characters.
# Make two passes to allow for proper duplicate-argument suppression.
ac_configure_args=
ac_configure_args0=
ac_configure_args1=
ac_must_keep_next=false
for ac_pass in 1 2
do
  for ac_arg
  do
    case $ac_arg in
    -no-create | --no-c* | -n | -no-recursion | --no-r*) continue ;;
    -q | -quiet | --quiet | --quie | --qui | --qu | --q \
    | -silent | --silent | --silen | --sile | --sil)
      continue ;;
    *\'*)
      ac_arg=`printf "%s\n" "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
    esac
    case $ac_pass in
    1) as_fn_append ac_configure_args0 " '$ac_arg'" ;;
    2)
      as_fn_append ac_configure_args1 " '$ac_arg'"
      if test $ac_must_keep_next = true; then
	ac_must_keep_next=false # Got value, back to normal.
      else
	case $ac_arg in
	  *=* | --config-cache | -C | -disable-* | --disable-* \
	  | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
	  | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
	  | -with-* | --with-* | -without-* | --without-* | --x)
	    case "$ac_configure_args0 " in
	      "$ac_configure_args1"*" '$ac_arg' "* ) continue ;;
	    esac
	    ;;
	  -* ) ac_must_keep_next=true ;;
	esac
      fi
      as_fn_append ac_configure_args " '$ac_arg'"
      ;;
    esac
  done
done
{ ac_configure_args0=; unset ac_configure_args0;}
{ ac_configure_args1=; unset ac_configure_args1;}

# When interrupted or exit'd, cleanup temporary files, and complete
# config.log.  We remove comments because anyway the quotes in there
# would cause problems or look ugly.
# WARNING: Use '\'' to represent an apostrophe within the trap.
# WARNING: Do not start the trap code with a newline, due to a FreeBSD 4.0 bug.
trap 'exit_status=$?
  # Sanitize IFS.
  IFS=" ""	$as_nl"
  # Save into config.log some information that might help in debugging.
  {
    echo

    printf "%s\n" "## ---------------- ##
## Cache variables. ##
## ---------------- ##"
    echo
    # The following way of writing the cache mishandles newlines in values,
(
  for ac_var in `(set) 2>&1 | sed -n '\''s/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'\''`; do
    eval ac_val=\$$ac_var
    case $ac_val in #(
    *${as_nl}*)
      case $ac_var in #(
      *_cv_*) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
printf "%s\n" "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
      esac
      case $ac_var in #(
      _ | IFS | as_nl) ;; #(
      BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
      *) { eval $ac_var=; unset $ac_var;} ;;
      esac ;;
    esac
  done
  (set) 2>&1 |
    case $as_nl`(ac_space='\'' '\''; set) 2>&1` in #(
    *${as_nl}ac_space=\ *)
      sed -n \
	"s/'\''/'\''\\\\'\'''\''/g;
	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\''\\2'\''/p"
      ;; #(
    *)
      sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
      ;;
    esac |
    sort
)
    echo

    printf "%s\n" "## ----------------- ##
## Output variables. ##
## ----------------- ##"
    echo
    for ac_var in $ac_subst_vars
    do
      eval ac_val=\$$ac_var
      case $ac_val in
      *\'\''*) ac_val=`printf "%s\n" "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
      esac
      printf "%s\n" "$ac_var='\''$ac_val'\''"
    done | sort
    echo

    if test -n "$ac_subst_files"; then
      printf "%s\n" "## ------------------- ##
## File substitutions. ##
## ------------------- ##"
      echo
      for ac_var in $ac_subst_files
      do
	eval ac_val=\$$ac_var
	case $ac_val in
	*\'\''*) ac_val=`printf "%s\n" "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
	esac
	printf "%s\n" "$ac_var='\''$ac_val'\''"
      done | sort
      echo
    fi

    if test -s confdefs.h; then
      printf "%s\n" "## ----------- ##
## confdefs.h. ##
## ----------- ##"
      echo
      cat confdefs.h
      echo
    fi
    test "$ac_signal" != 0 &&
      printf "%s\n" "$as_me: caught signal $ac_signal"
    printf "%s\n" "$as_me: exit $exit_status"
  } >&5
  rm -f core *.core core.conftest.* &&
    rm -f -r conftest* confdefs* conf$$* $ac_clean_files &&
    exit $exit_status
' 0
for ac_signal in 1 2 13 15; do
  trap 'ac_signal='$ac_signal'; as_fn_exit 1' $ac_signal
done
ac_signal=0

# confdefs.h avoids OS command line length limits that DEFS can exceed.
rm -f -r conftest* confdefs.h

printf "%s\n" "/* confdefs.h */" > confdefs.h

# Predefined preprocessor variables.

printf "%s\n" "#define PACKAGE_NAME \"$PACKAGE_NAME\"" >>confdefs.h

printf "%s\n" "#define PACKAGE_TARNAME \"$PACKAGE_TARNAME\"" >>confdefs.h

printf "%s\n" "#define PACKAGE_VERSION \"$PACKAGE_VERSION\"" >>confdefs.h

printf "%s\n" "#define PACKAGE_STRING \"$PACKAGE_STRING\"" >>confdefs.h

printf "%s\n" "#define PACKAGE_BUGREPORT \"$PACKAGE_BUGREPORT\"" >>confdefs.h

printf "%s\n" "#define PACKAGE_URL \"$PACKAGE_URL\"" >>confdefs.h


# Let the site file select an alternate cache file if it wants to.
# Prefer an explicitly selected file to automatically selected ones.
if test -n "$CONFIG_SITE"; then
  ac_site_files="$CONFIG_SITE"
elif test "x$prefix" != xNONE; then
  ac_site_files="$prefix/share/config.site $prefix/etc/config.site"
else
  ac_site_files="$ac_default_prefix/share/config.site $ac_default_prefix/etc/config.site"
fi

for ac_site_file in $ac_site_files
do
  case $ac_site_file in #(
  */*) :
     ;; #(
  *) :
    ac_site_file=./$ac_site_file ;;
esac
  if test -f "$ac_site_file" && test -r "$ac_site_file"; then
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: loading site script $ac_site_file" >&5
printf "%s\n" "$as_me: loading site script $ac_site_file" >&6;}
    sed 's/^/| /' "$ac_site_file" >&5
    . "$ac_site_file" \
      || { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error $? "failed to load site script $ac_site_file
See \`config.log' for more details" "$LINENO" 5; }
  fi
done

if test -r "$cache_file"; then
  # Some versions of bash will fail to source /dev/null (special files
  # actually), so we avoid doing that.  DJGPP emulates it as a regular file.
  if test /dev/null != "$cache_file" && test -f "$cache_file"; then
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: loading cache $cache_file" >&5
printf "%s\n" "$as_me: loading cache $cache_file" >&6;}
    case $cache_file in
      [\\/]* | ?:[\\/]* ) . "$cache_file";;
      *)                      . "./$cache_file";;
    esac
  fi
else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: creating cache $cache_file" >&5
printf "%s\n" "$as_me: creating cache $cache_file" >&6;}
  >$cache_file
fi

# Test code for whether the C compiler supports C89 (global declarations)
ac_c_conftest_c89_globals='
/* Does the compiler advertise C89 conformance?
   Do not test the value of __STDC__, because some compilers set it to 0
   while being otherwise adequately conformant. */
#if !defined __STDC__
# error "Compiler does not advertise C89 conformance"
#endif

#include <stddef.h>
#include <stdarg.h>
struct stat;
/* Most of the following tests are stolen from RCS 5.7 src/conf.sh.  */
struct buf { int x; };
struct buf * (*rcsopen) (struct buf *, struct stat *, int);
static char *e (p, i)
     char **p;
     int i;
{
  return p[i];
}
static char *f (char * (*g) (char **, int), char **p, ...)
{
  char *s;
  va_list v;
  va_start (v,p);
  s = g (p, va_arg (v,int));
  va_end (v);
  return s;
}

/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
   function prototypes and stuff, but not \xHH hex character constants.
   These do not provoke an error unfortunately, instead are silently treated
   as an "x".  The following induces an error, until -std is added to get
   proper ANSI mode.  Curiously \x00 != x always comes out true, for an
   array size at least.  It is necessary to write \x00 == 0 to get something
   that is true only with -std.  */
int osf4_cc_array ['\''\x00'\'' == 0 ? 1 : -1];

/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
   inside strings and character constants.  */
#define FOO(x) '\''x'\''
int xlc6_cc_array[FOO(a) == '\''x'\'' ? 1 : -1];

int test (int i, double x);
struct s1 {int (*f) (int a);};
struct s2 {int (*f) (double a);};
int pairnames (int, char **, int *(*)(struct buf *, struct stat *, int),
               int, int);'

# Test code for whether the C compiler supports C89 (body of main).
ac_c_conftest_c89_main='
ok |= (argc == 0 || f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]);
'

# Test code for whether the C compiler supports C99 (global declarations)
ac_c_conftest_c99_globals='
// Does the compiler advertise C99 conformance?
#if !defined __STDC_VERSION__ || __STDC_VERSION__ < 199901L
# error "Compiler does not advertise C99 conformance"
#endif

#include <stdbool.h>
extern int puts (const char *);
extern int printf (const char *, ...);
extern int dprintf (int, const char *, ...);
extern void *malloc (size_t);

// Check varargs macros.  These examples are taken from C99 6.10.3.5.
// dprintf is used instead of fprintf to avoid needing to declare
// FILE and stderr.
#define debug(...) dprintf (2, __VA_ARGS__)
#define showlist(...) puts (#__VA_ARGS__)
#define report(test,...) ((test) ? puts (#test) : printf (__VA_ARGS__))
static void
test_varargs_macros (void)
{
  int x = 1234;
  int y = 5678;
  debug ("Flag");
  debug ("X = %d\n", x);
  showlist (The first, second, and third items.);
  report (x>y, "x is %d but y is %d", x, y);
}

// Check long long types.
#define BIG64 18446744073709551615ull
#define BIG32 4294967295ul
#define BIG_OK (BIG64 / BIG32 == 4294967297ull && BIG64 % BIG32 == 0)
#if !BIG_OK
  #error "your preprocessor is broken"
#endif
#if BIG_OK
#else
  #error "your preprocessor is broken"
#endif
static long long int bignum = -9223372036854775807LL;
static unsigned long long int ubignum = BIG64;

struct incomplete_array
{
  int datasize;
  double data[];
};

struct named_init {
  int number;
  const wchar_t *name;
  double average;
};

typedef const char *ccp;

static inline int
test_restrict (ccp restrict text)
{
  // See if C++-style comments work.
  // Iterate through items via the restricted pointer.
  // Also check for declarations in for loops.
  for (unsigned int i = 0; *(text+i) != '\''\0'\''; ++i)
    continue;
  return 0;
}

// Check varargs and va_copy.
static bool
test_varargs (const char *format, ...)
{
  va_list args;
  va_start (args, format);
  va_list args_copy;
  va_copy (args_copy, args);

  const char *str = "";
  int number = 0;
  float fnumber = 0;

  while (*format)
    {
      switch (*format++)
	{
	case '\''s'\'': // string
	  str = va_arg (args_copy, const char *);
	  break;
	case '\''d'\'': // int
	  number = va_arg (args_copy, int);
	  break;
	case '\''f'\'': // float
	  fnumber = va_arg (args_copy, double);
	  break;
	default:
	  break;
	}
    }
  va_end (args_copy);
  va_end (args);

  return *str && number && fnumber;
}
'

# Test code for whether the C compiler supports C99 (body of main).
ac_c_conftest_c99_main='
  // Check bool.
  _Bool success = false;
  success |= (argc != 0);

  // Check restrict.
  if (test_restrict ("String literal") == 0)
    success = true;
  char *restrict newvar = "Another string";

  // Check varargs.
  success &= test_varargs ("s, d'\'' f .", "string", 65, 34.234);
  test_varargs_macros ();

  // Check flexible array members.
  struct incomplete_array *ia =
    malloc (sizeof (struct incomplete_array) + (sizeof (double) * 10));
  ia->datasize = 10;
  for (int i = 0; i < ia->datasize; ++i)
    ia->data[i] = i * 1.234;

  // Check named initializers.
  struct named_init ni = {
    .number = 34,
    .name = L"Test wide string",
    .average = 543.34343,
  };

  ni.number = 58;

  int dynamic_array[ni.number];
  dynamic_array[0] = argv[0][0];
  dynamic_array[ni.number - 1] = 543;

  // work around unused variable warnings
  ok |= (!success || bignum == 0LL || ubignum == 0uLL || newvar[0] == '\''x'\''
	 || dynamic_array[ni.number - 1] != 543);
'

# Test code for whether the C compiler supports C11 (global declarations)
ac_c_conftest_c11_globals='
// Does the compiler advertise C11 conformance?
#if !defined __STDC_VERSION__ || __STDC_VERSION__ < 201112L
# error "Compiler does not advertise C11 conformance"
#endif

// Check _Alignas.
char _Alignas (double) aligned_as_double;
char _Alignas (0) no_special_alignment;
extern char aligned_as_int;
char _Alignas (0) _Alignas (int) aligned_as_int;

// Check _Alignof.
enum
{
  int_alignment = _Alignof (int),
  int_array_alignment = _Alignof (int[100]),
  char_alignment = _Alignof (char)
};
_Static_assert (0 < -_Alignof (int), "_Alignof is signed");

// Check _Noreturn.
int _Noreturn does_not_return (void) { for (;;) continue; }

// Check _Static_assert.
struct test_static_assert
{
  int x;
  _Static_assert (sizeof (int) <= sizeof (long int),
                  "_Static_assert does not work in struct");
  long int y;
};

// Check UTF-8 literals.
#define u8 syntax error!
char const utf8_literal[] = u8"happens to be ASCII" "another string";

// Check duplicate typedefs.
typedef long *long_ptr;
typedef long int *long_ptr;
typedef long_ptr long_ptr;

// Anonymous structures and unions -- taken from C11 6.7.2.1 Example 1.
struct anonymous
{
  union {
    struct { int i; int j; };
    struct { int k; long int l; } w;
  };
  int m;
} v1;
'

# Test code for whether the C compiler supports C11 (body of main).
ac_c_conftest_c11_main='
  _Static_assert ((offsetof (struct anonymous, i)
		   == offsetof (struct anonymous, w.k)),
		  "Anonymous union alignment botch");
  v1.i = 2;
  v1.w.k = 5;
  ok |= v1.i != 5;
'

# Test code for whether the C compiler supports C11 (complete).
ac_c_conftest_c11_program="${ac_c_conftest_c89_globals}
${ac_c_conftest_c99_globals}
${ac_c_conftest_c11_globals}

int
main (int argc, char **argv)
{
  int ok = 0;
  ${ac_c_conftest_c89_main}
  ${ac_c_conftest_c99_main}
  ${ac_c_conftest_c11_main}
  return ok;
}
"

# Test code for whether the C compiler supports C99 (complete).
ac_c_conftest_c99_program="${ac_c_conftest_c89_globals}
${ac_c_conftest_c99_globals}

int
main (int argc, char **argv)
{
  int ok = 0;
  ${ac_c_conftest_c89_main}
  ${ac_c_conftest_c99_main}
  return ok;
}
"

# Test code for whether the C compiler supports C89 (complete).
ac_c_conftest_c89_program="${ac_c_conftest_c89_globals}

int
main (int argc, char **argv)
{
  int ok = 0;
  ${ac_c_conftest_c89_main}
  return ok;
}
"

as_fn_append ac_header_c_list " stdio.h stdio_h HAVE_STDIO_H"
as_fn_append ac_header_c_list " stdlib.h stdlib_h HAVE_STDLIB_H"
as_fn_append ac_header_c_list " string.h string_h HAVE_STRING_H"
as_fn_append ac_header_c_list " inttypes.h inttypes_h HAVE_INTTYPES_H"
as_fn_append ac_header_c_list " stdint.h stdint_h HAVE_STDINT_H"
as_fn_append ac_header_c_list " strings.h strings_h HAVE_STRINGS_H"
as_fn_append ac_header_c_list " sys/stat.h sys_stat_h HAVE_SYS_STAT_H"
as_fn_append ac_header_c_list " sys/types.h sys_types_h HAVE_SYS_TYPES_H"
as_fn_append ac_header_c_list " unistd.h unistd_h HAVE_UNISTD_H"
# Test code for whether the C++ compiler supports C++98 (global declarations)
ac_cxx_conftest_cxx98_globals='
// Does the compiler advertise C++98 conformance?
#if !defined __cplusplus || __cplusplus < 199711L
# error "Compiler does not advertise C++98 conformance"
#endif

// These inclusions are to reject old compilers that
// lack the unsuffixed header files.
#include <cstdlib>
#include <exception>

// <cassert> and <cstring> are *not* freestanding headers in C++98.
extern void assert (int);
namespace std {
  extern int strcmp (const char *, const char *);
}

// Namespaces, exceptions, and templates were all added after "C++ 2.0".
using std::exception;
using std::strcmp;

namespace {

void test_exception_syntax()
{
  try {
    throw "test";
  } catch (const char *s) {
    // Extra parentheses suppress a warning when building autoconf itself,
    // due to lint rules shared with more typical C programs.
    assert (!(strcmp) (s, "test"));
  }
}

template <typename T> struct test_template
{
  T const val;
  explicit test_template(T t) : val(t) {}
  template <typename U> T add(U u) { return static_cast<T>(u) + val; }
};

} // anonymous namespace
'

# Test code for whether the C++ compiler supports C++98 (body of main)
ac_cxx_conftest_cxx98_main='
  assert (argc);
  assert (! argv[0]);
{
  test_exception_syntax ();
  test_template<double> tt (2.0);
  assert (tt.add (4) == 6.0);
  assert (true && !false);
}
'

# Test code for whether the C++ compiler supports C++11 (global declarations)
ac_cxx_conftest_cxx11_globals='
// Does the compiler advertise C++ 2011 conformance?
#if !defined __cplusplus || __cplusplus < 201103L
# error "Compiler does not advertise C++11 conformance"
#endif

namespace cxx11test
{
  constexpr int get_val() { return 20; }

  struct testinit
  {
    int i;
    double d;
  };

  class delegate
  {
  public:
    delegate(int n) : n(n) {}
    delegate(): delegate(2354) {}

    virtual int getval() { return this->n; };
  protected:
    int n;
  };

  class overridden : public delegate
  {
  public:
    overridden(int n): delegate(n) {}
    virtual int getval() override final { return this->n * 2; }
  };

  class nocopy
  {
  public:
    nocopy(int i): i(i) {}
    nocopy() = default;
    nocopy(const nocopy&) = delete;
    nocopy & operator=(const nocopy&) = delete;
  private:
    int i;
  };

  // for testing lambda expressions
  template <typename Ret, typename Fn> Ret eval(Fn f, Ret v)
  {
    return f(v);
  }

  // for testing variadic templates and trailing return types
  template <typename V> auto sum(V first) -> V
  {
    return first;
  }
  template <typename V, typename... Args> auto sum(V first, Args... rest) -> V
  {
    return first + sum(rest...);
  }
}
'

# Test code for whether the C++ compiler supports C++11 (body of main)
ac_cxx_conftest_cxx11_main='
{
  // Test auto and decltype
  auto a1 = 6538;
  auto a2 = 48573953.4;
  auto a3 = "String literal";

  int total = 0;
  for (auto i = a3; *i; ++i) { total += *i; }

  decltype(a2) a4 = 34895.034;
}
{
  // Test constexpr
  short sa[cxx11test::get_val()] = { 0 };
}
{
  // Test initializer lists
  cxx11test::testinit il = { 4323, 435234.23544 };
}
{
  // Test range-based for
  int array[] = {9, 7, 13, 15, 4, 18, 12, 10, 5, 3,
                 14, 19, 17, 8, 6, 20, 16, 2, 11, 1};
  for (auto &x : array) { x += 23; }
}
{
  // Test lambda expressions
  using cxx11test::eval;
  assert (eval ([](int x) { return x*2; }, 21) == 42);
  double d = 2.0;
  assert (eval ([&](double x) { return d += x; }, 3.0) == 5.0);
  assert (d == 5.0);
  assert (eval ([=](double x) mutable { return d += x; }, 4.0) == 9.0);
  assert (d == 5.0);
}
{
  // Test use of variadic templates
  using cxx11test::sum;
  auto a = sum(1);
  auto b = sum(1, 2);
  auto c = sum(1.0, 2.0, 3.0);
}
{
  // Test constructor delegation
  cxx11test::delegate d1;
  cxx11test::delegate d2();
  cxx11test::delegate d3(45);
}
{
  // Test override and final
  cxx11test::overridden o1(55464);
}
{
  // Test nullptr
  char *c = nullptr;
}
{
  // Test template brackets
  test_template<::test_template<int>> v(test_template<int>(12));
}
{
  // Unicode literals
  char const *utf8 = u8"UTF-8 string \u2500";
  char16_t const *utf16 = u"UTF-8 string \u2500";
  char32_t const *utf32 = U"UTF-32 string \u2500";
}
'

# Test code for whether the C compiler supports C++11 (complete).
ac_cxx_conftest_cxx11_program="${ac_cxx_conftest_cxx98_globals}
${ac_cxx_conftest_cxx11_globals}

int
main (int argc, char **argv)
{
  int ok = 0;
  ${ac_cxx_conftest_cxx98_main}
  ${ac_cxx_conftest_cxx11_main}
  return ok;
}
"

# Test code for whether the C compiler supports C++98 (complete).
ac_cxx_conftest_cxx98_program="${ac_cxx_conftest_cxx98_globals}
int
main (int argc, char **argv)
{
  int ok = 0;
  ${ac_cxx_conftest_cxx98_main}
  return ok;
}
"

as_fn_append ac_header_cxx_list " endian.h endian_h HAVE_ENDIAN_H"
as_fn_append ac_header_cxx_list " machine/endian.h machine_endian_h HAVE_MACHINE_ENDIAN_H"
as_fn_append ac_header_cxx_list " byteswap.h byteswap_h HAVE_BYTESWAP_H"
as_fn_append ac_header_cxx_list " time.h time_h HAVE_TIME_H"
as_fn_append ac_header_cxx_list " dlfcn.h dlfcn_h HAVE_DLFCN_H"
as_fn_append ac_header_cxx_list " termio.h termio_h HAVE_TERMIO_H"
as_fn_append ac_header_cxx_list " netdb.h netdb_h HAVE_NETDB_H"
as_fn_append ac_header_cxx_list " sys/event.h sys_event_h HAVE_SYS_EVENT_H"
as_fn_append ac_header_cxx_list " pwd.h pwd_h HAVE_PWD_H"
as_fn_append ac_header_cxx_list " grp.h grp_h HAVE_GRP_H"
as_fn_append ac_header_cxx_list " execinfo.h execinfo_h HAVE_EXECINFO_H"
as_fn_append ac_header_cxx_list " poll.h poll_h HAVE_POLL_H"
as_fn_append ac_header_c_list " sys/mman.h sys_mman_h HAVE_SYS_MMAN_H"
as_fn_append ac_header_c_list " sys/param.h sys_param_h HAVE_SYS_PARAM_H"
as_fn_append ac_func_c_list " getpagesize HAVE_GETPAGESIZE"
as_fn_append ac_header_cxx_list " ifaddrs.h ifaddrs_h HAVE_IFADDRS_H"
as_fn_append ac_header_cxx_list " linux/if_tun.h linux_if_tun_h HAVE_LINUX_IF_TUN_H"
as_fn_append ac_header_cxx_list " linux/if_packet.h linux_if_packet_h HAVE_LINUX_IF_PACKET_H"
as_fn_append ac_header_cxx_list " net/if_dl.h net_if_dl_h HAVE_NET_IF_DL_H"
as_fn_append ac_header_cxx_list " net/if_tap.h net_if_tap_h HAVE_NET_IF_TAP_H"
as_fn_append ac_header_cxx_list " net/if_tun.h net_if_tun_h HAVE_NET_IF_TUN_H"
as_fn_append ac_header_cxx_list " net/if_types.h net_if_types_h HAVE_NET_IF_TYPES_H"
as_fn_append ac_header_cxx_list " net/bpf.h net_bpf_h HAVE_NET_BPF_H"
as_fn_append ac_header_cxx_list " netpacket/packet.h netpacket_packet_h HAVE_NETPACKET_PACKET_H"

# Auxiliary files required by this configure script.
ac_aux_files="install-sh config.guess config.sub"

# Locations in which to look for auxiliary files.
ac_aux_dir_candidates="${srcdir}${PATH_SEPARATOR}${srcdir}/..${PATH_SEPARATOR}${srcdir}/../.."

# Search for a directory containing all of the required auxiliary files,
# $ac_aux_files, from the $PATH-style list $ac_aux_dir_candidates.
# If we don't find one directory that contains all the files we need,
# we report the set of missing files from the *first* directory in
# $ac_aux_dir_candidates and give up.
ac_missing_aux_files=""
ac_first_candidate=:
printf "%s\n" "$as_me:${as_lineno-$LINENO}: looking for aux files: $ac_aux_files" >&5
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
as_found=false
for as_dir in $ac_aux_dir_candidates
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
  as_found=:

  printf "%s\n" "$as_me:${as_lineno-$LINENO}:  trying $as_dir" >&5
  ac_aux_dir_found=yes
  ac_install_sh=
  for ac_aux in $ac_aux_files
  do
    # As a special case, if "install-sh" is required, that requirement
    # can be satisfied by any of "install-sh", "install.sh", or "shtool",
    # and $ac_install_sh is set appropriately for whichever one is found.
    if test x"$ac_aux" = x"install-sh"
    then
      if test -f "${as_dir}install-sh"; then
        printf "%s\n" "$as_me:${as_lineno-$LINENO}:   ${as_dir}install-sh found" >&5
        ac_install_sh="${as_dir}install-sh -c"
      elif test -f "${as_dir}install.sh"; then
        printf "%s\n" "$as_me:${as_lineno-$LINENO}:   ${as_dir}install.sh found" >&5
        ac_install_sh="${as_dir}install.sh -c"
      elif test -f "${as_dir}shtool"; then
        printf "%s\n" "$as_me:${as_lineno-$LINENO}:   ${as_dir}shtool found" >&5
        ac_install_sh="${as_dir}shtool install -c"
      else
        ac_aux_dir_found=no
        if $ac_first_candidate; then
          ac_missing_aux_files="${ac_missing_aux_files} install-sh"
        else
          break
        fi
      fi
    else
      if test -f "${as_dir}${ac_aux}"; then
        printf "%s\n" "$as_me:${as_lineno-$LINENO}:   ${as_dir}${ac_aux} found" >&5
      else
        ac_aux_dir_found=no
        if $ac_first_candidate; then
          ac_missing_aux_files="${ac_missing_aux_files} ${ac_aux}"
        else
          break
        fi
      fi
    fi
  done
  if test "$ac_aux_dir_found" = yes; then
    ac_aux_dir="$as_dir"
    break
  fi
  ac_first_candidate=false

  as_found=false
done
IFS=$as_save_IFS
if $as_found
then :

else $as_nop
  as_fn_error $? "cannot find required auxiliary files:$ac_missing_aux_files" "$LINENO" 5
fi


# These three variables are undocumented and unsupported,
# and are intended to be withdrawn in a future Autoconf release.
# They can cause serious problems if a builder's source tree is in a directory
# whose full name contains unusual characters.
if test -f "${ac_aux_dir}config.guess"; then
  ac_config_guess="$SHELL ${ac_aux_dir}config.guess"
fi
if test -f "${ac_aux_dir}config.sub"; then
  ac_config_sub="$SHELL ${ac_aux_dir}config.sub"
fi
if test -f "$ac_aux_dir/configure"; then
  ac_configure="$SHELL ${ac_aux_dir}configure"
fi

# Check that the precious variables saved in the cache have kept the same
# value.
ac_cache_corrupted=false
for ac_var in $ac_precious_vars; do
  eval ac_old_set=\$ac_cv_env_${ac_var}_set
  eval ac_new_set=\$ac_env_${ac_var}_set
  eval ac_old_val=\$ac_cv_env_${ac_var}_value
  eval ac_new_val=\$ac_env_${ac_var}_value
  case $ac_old_set,$ac_new_set in
    set,)
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
printf "%s\n" "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
      ac_cache_corrupted=: ;;
    ,set)
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was not set in the previous run" >&5
printf "%s\n" "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
      ac_cache_corrupted=: ;;
    ,);;
    *)
      if test "x$ac_old_val" != "x$ac_new_val"; then
	# differences in whitespace do not lead to failure.
	ac_old_val_w=`echo x $ac_old_val`
	ac_new_val_w=`echo x $ac_new_val`
	if test "$ac_old_val_w" != "$ac_new_val_w"; then
	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' has changed since the previous run:" >&5
printf "%s\n" "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
	  ac_cache_corrupted=:
	else
	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5
printf "%s\n" "$as_me: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&2;}
	  eval $ac_var=\$ac_old_val
	fi
	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}:   former value:  \`$ac_old_val'" >&5
printf "%s\n" "$as_me:   former value:  \`$ac_old_val'" >&2;}
	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}:   current value: \`$ac_new_val'" >&5
printf "%s\n" "$as_me:   current value: \`$ac_new_val'" >&2;}
      fi;;
  esac
  # Pass precious variables to config.status.
  if test "$ac_new_set" = set; then
    case $ac_new_val in
    *\'*) ac_arg=$ac_var=`printf "%s\n" "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
    *) ac_arg=$ac_var=$ac_new_val ;;
    esac
    case " $ac_configure_args " in
      *" '$ac_arg' "*) ;; # Avoid dups.  Use of quotes ensures accuracy.
      *) as_fn_append ac_configure_args " '$ac_arg'" ;;
    esac
  fi
done
if $ac_cache_corrupted; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5
printf "%s\n" "$as_me: error: changes in the environment can compromise the build" >&2;}
  as_fn_error $? "run \`${MAKE-make} distclean' and/or \`rm $cache_file'
	    and start over" "$LINENO" 5
fi
## -------------------- ##
## Main body of script. ##
## -------------------- ##

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu



ac_config_headers="$ac_config_headers include/click/config.h:config.h.in"

ac_config_headers="$ac_config_headers include/click/pathvars.h:pathvars.h.in"

ac_config_headers="$ac_config_headers include/click/config-bsdmodule.h:config-bsdmodule.h.in include/click/config-linuxmodule.h:config-linuxmodule.h.in include/click/config-ns.h:config-ns.h.in include/click/config-userlevel.h:config-userlevel.h.in include/click/config-minios.h:config-minios.h.in"

ac_config_files="$ac_config_files Makefile"

ac_config_files="$ac_config_files bin/click-buildtool:click-buildtool.in"

ac_config_files="$ac_config_files bin/click-compile:click-compile.in"

ac_config_files="$ac_config_files installch"

ac_config_files="$ac_config_files share/click/config.mk:config.mk.in share/click/pkg-config.mk"

ac_config_files="$ac_config_files doc/Makefile etc/libclick/Makefile tools/Makefile tools/lib/Makefile"


ac_user_cxx=${CXX+y}

CLICK_VERSION=$PACKAGE_VERSION
tabchar='	'


printf "%s\n" "#define CLICK_VERSION \"$CLICK_VERSION\"" >>confdefs.h



click_version_code_in=`echo "$CLICK_VERSION" | sed -e 's/[a-z].*//' | sed -e 's/$/.0/' | tr . , | sed -e 's/^\([0-9]*,[0-9]*,[0-9]\).*/\1/'`
printf "%s\n" "#define CLICK_VERSION_CODE CLICK_MAKE_VERSION_CODE($click_version_code_in)" >>confdefs.h



    ac_user_cc=${CC+y}
    ac_user_cflags=${CFLAGS+y}
    ac_user_kernel_cc=${KERNEL_CC+y}
    ac_user_kernel_cflags=${KERNEL_CFLAGS+y}
    ac_user_cxx=${CXX+y}
    ac_user_cxxflags=${CXXFLAGS+y}
    ac_user_kernel_cxx=${KERNEL_CXX+y}
    ac_user_kernel_cxxflags=${KERNEL_CXXFLAGS+y}
    ac_user_build_cxx=${BUILD_CXX+y}
    ac_user_depcflags=${DEPCFLAGS+y}
    ac_user_depdirflag=${DEPDIRFLAG+y}
    ac_compile_with_warnings=y

    conf_auxdir='$(top_srcdir)'








  # Make sure we can run config.sub.
$SHELL "${ac_aux_dir}config.sub" sun4 >/dev/null 2>&1 ||
  as_fn_error $? "cannot run $SHELL ${ac_aux_dir}config.sub" "$LINENO" 5

{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking build system type" >&5
printf %s "checking build system type... " >&6; }
if test ${ac_cv_build+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  ac_build_alias=$build_alias
test "x$ac_build_alias" = x &&
  ac_build_alias=`$SHELL "${ac_aux_dir}config.guess"`
test "x$ac_build_alias" = x &&
  as_fn_error $? "cannot guess build type; you must specify one" "$LINENO" 5
ac_cv_build=`$SHELL "${ac_aux_dir}config.sub" $ac_build_alias` ||
  as_fn_error $? "$SHELL ${ac_aux_dir}config.sub $ac_build_alias failed" "$LINENO" 5

fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build" >&5
printf "%s\n" "$ac_cv_build" >&6; }
case $ac_cv_build in
*-*-*) ;;
*) as_fn_error $? "invalid value of canonical build" "$LINENO" 5;;
esac
build=$ac_cv_build
ac_save_IFS=$IFS; IFS='-'
set x $ac_cv_build
shift
build_cpu=$1
build_vendor=$2
shift; shift
# Remember, the first character of IFS is used to create $*,
# except with old shells:
build_os=$*
IFS=$ac_save_IFS
case $build_os in *\ *) build_os=`echo "$build_os" | sed 's/ /-/g'`;; esac


{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking host system type" >&5
printf %s "checking host system type... " >&6; }
if test ${ac_cv_host+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test "x$host_alias" = x; then
  ac_cv_host=$ac_cv_build
else
  ac_cv_host=`$SHELL "${ac_aux_dir}config.sub" $host_alias` ||
    as_fn_error $? "$SHELL ${ac_aux_dir}config.sub $host_alias failed" "$LINENO" 5
fi

fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_host" >&5
printf "%s\n" "$ac_cv_host" >&6; }
case $ac_cv_host in
*-*-*) ;;
*) as_fn_error $? "invalid value of canonical host" "$LINENO" 5;;
esac
host=$ac_cv_host
ac_save_IFS=$IFS; IFS='-'
set x $ac_cv_host
shift
host_cpu=$1
host_vendor=$2
shift; shift
# Remember, the first character of IFS is used to create $*,
# except with old shells:
host_os=$*
IFS=$ac_save_IFS
case $host_os in *\ *) host_os=`echo "$host_os" | sed 's/ /-/g'`;; esac


{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking target system type" >&5
printf %s "checking target system type... " >&6; }
if test ${ac_cv_target+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test "x$target_alias" = x; then
  ac_cv_target=$ac_cv_host
else
  ac_cv_target=`$SHELL "${ac_aux_dir}config.sub" $target_alias` ||
    as_fn_error $? "$SHELL ${ac_aux_dir}config.sub $target_alias failed" "$LINENO" 5
fi

fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_target" >&5
printf "%s\n" "$ac_cv_target" >&6; }
case $ac_cv_target in
*-*-*) ;;
*) as_fn_error $? "invalid value of canonical target" "$LINENO" 5;;
esac
target=$ac_cv_target
ac_save_IFS=$IFS; IFS='-'
set x $ac_cv_target
shift
target_cpu=$1
target_vendor=$2
shift; shift
# Remember, the first character of IFS is used to create $*,
# except with old shells:
target_os=$*
IFS=$ac_save_IFS
case $target_os in *\ *) target_os=`echo "$target_os" | sed 's/ /-/g'`;; esac


# The aliases save the names the user supplied, while $host etc.
# will get canonicalized.
test -n "$target_alias" &&
  test "$program_prefix$program_suffix$program_transform_name" = \
    NONENONEs,x,x, &&
  program_prefix=${target_alias}-


if test -n "$ac_tool_prefix"; then
  # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
set dummy ${ac_tool_prefix}gcc; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_prog_CC+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test -n "$CC"; then
  ac_cv_prog_CC="$CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
    ac_cv_prog_CC="${ac_tool_prefix}gcc"
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
CC=$ac_cv_prog_CC
if test -n "$CC"; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
printf "%s\n" "$CC" >&6; }
else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi


fi
if test -z "$ac_cv_prog_CC"; then
  ac_ct_CC=$CC
  # Extract the first word of "gcc", so it can be a program name with args.
set dummy gcc; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_prog_ac_ct_CC+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test -n "$ac_ct_CC"; then
  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_CC="gcc"
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_CC=$ac_cv_prog_ac_ct_CC
if test -n "$ac_ct_CC"; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
printf "%s\n" "$ac_ct_CC" >&6; }
else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi

  if test "x$ac_ct_CC" = x; then
    CC=""
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    CC=$ac_ct_CC
  fi
else
  CC="$ac_cv_prog_CC"
fi

if test -n "$ac_tool_prefix"; then
  # Extract the first word of "${ac_tool_prefix}g++", so it can be a program name with args.
set dummy ${ac_tool_prefix}g++; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_prog_CXX+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test -n "$CXX"; then
  ac_cv_prog_CXX="$CXX" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
    ac_cv_prog_CXX="${ac_tool_prefix}g++"
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
CXX=$ac_cv_prog_CXX
if test -n "$CXX"; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CXX" >&5
printf "%s\n" "$CXX" >&6; }
else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi


fi
if test -z "$ac_cv_prog_CXX"; then
  ac_ct_CXX=$CXX
  # Extract the first word of "g++", so it can be a program name with args.
set dummy g++; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_prog_ac_ct_CXX+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test -n "$ac_ct_CXX"; then
  ac_cv_prog_ac_ct_CXX="$ac_ct_CXX" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_CXX="g++"
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_CXX=$ac_cv_prog_ac_ct_CXX
if test -n "$ac_ct_CXX"; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CXX" >&5
printf "%s\n" "$ac_ct_CXX" >&6; }
else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi

  if test "x$ac_ct_CXX" = x; then
    CXX=""
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    CXX=$ac_ct_CXX
  fi
else
  CXX="$ac_cv_prog_CXX"
fi











ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu
if test -n "$ac_tool_prefix"; then
  # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
set dummy ${ac_tool_prefix}gcc; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_prog_CC+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test -n "$CC"; then
  ac_cv_prog_CC="$CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
    ac_cv_prog_CC="${ac_tool_prefix}gcc"
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
CC=$ac_cv_prog_CC
if test -n "$CC"; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
printf "%s\n" "$CC" >&6; }
else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi


fi
if test -z "$ac_cv_prog_CC"; then
  ac_ct_CC=$CC
  # Extract the first word of "gcc", so it can be a program name with args.
set dummy gcc; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_prog_ac_ct_CC+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test -n "$ac_ct_CC"; then
  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_CC="gcc"
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_CC=$ac_cv_prog_ac_ct_CC
if test -n "$ac_ct_CC"; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
printf "%s\n" "$ac_ct_CC" >&6; }
else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi

  if test "x$ac_ct_CC" = x; then
    CC=""
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    CC=$ac_ct_CC
  fi
else
  CC="$ac_cv_prog_CC"
fi

if test -z "$CC"; then
          if test -n "$ac_tool_prefix"; then
    # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
set dummy ${ac_tool_prefix}cc; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_prog_CC+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test -n "$CC"; then
  ac_cv_prog_CC="$CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
    ac_cv_prog_CC="${ac_tool_prefix}cc"
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
CC=$ac_cv_prog_CC
if test -n "$CC"; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
printf "%s\n" "$CC" >&6; }
else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi


  fi
fi
if test -z "$CC"; then
  # Extract the first word of "cc", so it can be a program name with args.
set dummy cc; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_prog_CC+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test -n "$CC"; then
  ac_cv_prog_CC="$CC" # Let the user override the test.
else
  ac_prog_rejected=no
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
    if test "$as_dir$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
       ac_prog_rejected=yes
       continue
     fi
    ac_cv_prog_CC="cc"
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

if test $ac_prog_rejected = yes; then
  # We found a bogon in the path, so make sure we never use it.
  set dummy $ac_cv_prog_CC
  shift
  if test $# != 0; then
    # We chose a different compiler from the bogus one.
    # However, it has the same basename, so the bogon will be chosen
    # first if we set CC to just the basename; use the full file name.
    shift
    ac_cv_prog_CC="$as_dir$ac_word${1+' '}$@"
  fi
fi
fi
fi
CC=$ac_cv_prog_CC
if test -n "$CC"; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
printf "%s\n" "$CC" >&6; }
else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi


fi
if test -z "$CC"; then
  if test -n "$ac_tool_prefix"; then
  for ac_prog in cl.exe
  do
    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
set dummy $ac_tool_prefix$ac_prog; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_prog_CC+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test -n "$CC"; then
  ac_cv_prog_CC="$CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
    ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
CC=$ac_cv_prog_CC
if test -n "$CC"; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
printf "%s\n" "$CC" >&6; }
else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi


    test -n "$CC" && break
  done
fi
if test -z "$CC"; then
  ac_ct_CC=$CC
  for ac_prog in cl.exe
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_prog_ac_ct_CC+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test -n "$ac_ct_CC"; then
  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_CC="$ac_prog"
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_CC=$ac_cv_prog_ac_ct_CC
if test -n "$ac_ct_CC"; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
printf "%s\n" "$ac_ct_CC" >&6; }
else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi


  test -n "$ac_ct_CC" && break
done

  if test "x$ac_ct_CC" = x; then
    CC=""
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    CC=$ac_ct_CC
  fi
fi

fi
if test -z "$CC"; then
  if test -n "$ac_tool_prefix"; then
  # Extract the first word of "${ac_tool_prefix}clang", so it can be a program name with args.
set dummy ${ac_tool_prefix}clang; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_prog_CC+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test -n "$CC"; then
  ac_cv_prog_CC="$CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
    ac_cv_prog_CC="${ac_tool_prefix}clang"
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
CC=$ac_cv_prog_CC
if test -n "$CC"; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
printf "%s\n" "$CC" >&6; }
else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi


fi
if test -z "$ac_cv_prog_CC"; then
  ac_ct_CC=$CC
  # Extract the first word of "clang", so it can be a program name with args.
set dummy clang; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_prog_ac_ct_CC+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test -n "$ac_ct_CC"; then
  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_CC="clang"
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_CC=$ac_cv_prog_ac_ct_CC
if test -n "$ac_ct_CC"; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
printf "%s\n" "$ac_ct_CC" >&6; }
else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi

  if test "x$ac_ct_CC" = x; then
    CC=""
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    CC=$ac_ct_CC
  fi
else
  CC="$ac_cv_prog_CC"
fi

fi


test -z "$CC" && { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error $? "no acceptable C compiler found in \$PATH
See \`config.log' for more details" "$LINENO" 5; }

# Provide some information about the compiler.
printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
set X $ac_compile
ac_compiler=$2
for ac_option in --version -v -V -qversion -version; do
  { { ac_try="$ac_compiler $ac_option >&5"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
printf "%s\n" "$ac_try_echo"; } >&5
  (eval "$ac_compiler $ac_option >&5") 2>conftest.err
  ac_status=$?
  if test -s conftest.err; then
    sed '10a\
... rest of stderr output deleted ...
         10q' conftest.err >conftest.er1
    cat conftest.er1 >&5
  fi
  rm -f conftest.er1 conftest.err
  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }
done

cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main (void)
{

  ;
  return 0;
}
_ACEOF
ac_clean_files_save=$ac_clean_files
ac_clean_files="$ac_clean_files a.out a.out.dSYM a.exe b.out"
# Try to create an executable without -o first, disregard a.out.
# It will help us diagnose broken compilers, and finding out an intuition
# of exeext.
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the C compiler works" >&5
printf %s "checking whether the C compiler works... " >&6; }
ac_link_default=`printf "%s\n" "$ac_link" | sed 's/ -o *conftest[^ ]*//'`

# The possible output files:
ac_files="a.out conftest.exe conftest a.exe a_out.exe b.out conftest.*"

ac_rmfiles=
for ac_file in $ac_files
do
  case $ac_file in
    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;;
    * ) ac_rmfiles="$ac_rmfiles $ac_file";;
  esac
done
rm -f $ac_rmfiles

if { { ac_try="$ac_link_default"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
printf "%s\n" "$ac_try_echo"; } >&5
  (eval "$ac_link_default") 2>&5
  ac_status=$?
  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }
then :
  # Autoconf-2.13 could set the ac_cv_exeext variable to `no'.
# So ignore a value of `no', otherwise this would lead to `EXEEXT = no'
# in a Makefile.  We should not override ac_cv_exeext if it was cached,
# so that the user can short-circuit this test for compilers unknown to
# Autoconf.
for ac_file in $ac_files ''
do
  test -f "$ac_file" || continue
  case $ac_file in
    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj )
	;;
    [ab].out )
	# We found the default executable, but exeext='' is most
	# certainly right.
	break;;
    *.* )
	if test ${ac_cv_exeext+y} && test "$ac_cv_exeext" != no;
	then :; else
	   ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
	fi
	# We set ac_cv_exeext here because the later test for it is not
	# safe: cross compilers may not add the suffix if given an `-o'
	# argument, so we may need to know it at that point already.
	# Even if this section looks crufty: it has the advantage of
	# actually working.
	break;;
    * )
	break;;
  esac
done
test "$ac_cv_exeext" = no && ac_cv_exeext=

else $as_nop
  ac_file=''
fi
if test -z "$ac_file"
then :
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
printf "%s\n" "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error 77 "C compiler cannot create executables
See \`config.log' for more details" "$LINENO" 5; }
else $as_nop
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
printf "%s\n" "yes" >&6; }
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5
printf %s "checking for C compiler default output file name... " >&6; }
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_file" >&5
printf "%s\n" "$ac_file" >&6; }
ac_exeext=$ac_cv_exeext

rm -f -r a.out a.out.dSYM a.exe conftest$ac_cv_exeext b.out
ac_clean_files=$ac_clean_files_save
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for suffix of executables" >&5
printf %s "checking for suffix of executables... " >&6; }
if { { ac_try="$ac_link"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
printf "%s\n" "$ac_try_echo"; } >&5
  (eval "$ac_link") 2>&5
  ac_status=$?
  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }
then :
  # If both `conftest.exe' and `conftest' are `present' (well, observable)
# catch `conftest.exe'.  For instance with Cygwin, `ls conftest' will
# work properly (i.e., refer to `conftest.exe'), while it won't with
# `rm'.
for ac_file in conftest.exe conftest conftest.*; do
  test -f "$ac_file" || continue
  case $ac_file in
    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;;
    *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
	  break;;
    * ) break;;
  esac
done
else $as_nop
  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error $? "cannot compute suffix of executables: cannot compile and link
See \`config.log' for more details" "$LINENO" 5; }
fi
rm -f conftest conftest$ac_cv_exeext
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5
printf "%s\n" "$ac_cv_exeext" >&6; }

rm -f conftest.$ac_ext
EXEEXT=$ac_cv_exeext
ac_exeext=$EXEEXT
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <stdio.h>
int
main (void)
{
FILE *f = fopen ("conftest.out", "w");
 return ferror (f) || fclose (f) != 0;

  ;
  return 0;
}
_ACEOF
ac_clean_files="$ac_clean_files conftest.out"
# Check that the compiler produces executables we can run.  If not, either
# the compiler is broken, or we cross compile.
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether we are cross compiling" >&5
printf %s "checking whether we are cross compiling... " >&6; }
if test "$cross_compiling" != yes; then
  { { ac_try="$ac_link"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
printf "%s\n" "$ac_try_echo"; } >&5
  (eval "$ac_link") 2>&5
  ac_status=$?
  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }
  if { ac_try='./conftest$ac_cv_exeext'
  { { case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
printf "%s\n" "$ac_try_echo"; } >&5
  (eval "$ac_try") 2>&5
  ac_status=$?
  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }; }; then
    cross_compiling=no
  else
    if test "$cross_compiling" = maybe; then
	cross_compiling=yes
    else
	{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error 77 "cannot run C compiled programs.
If you meant to cross compile, use \`--host'.
See \`config.log' for more details" "$LINENO" 5; }
    fi
  fi
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5
printf "%s\n" "$cross_compiling" >&6; }

rm -f conftest.$ac_ext conftest$ac_cv_exeext conftest.out
ac_clean_files=$ac_clean_files_save
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5
printf %s "checking for suffix of object files... " >&6; }
if test ${ac_cv_objext+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main (void)
{

  ;
  return 0;
}
_ACEOF
rm -f conftest.o conftest.obj
if { { ac_try="$ac_compile"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
printf "%s\n" "$ac_try_echo"; } >&5
  (eval "$ac_compile") 2>&5
  ac_status=$?
  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }
then :
  for ac_file in conftest.o conftest.obj conftest.*; do
  test -f "$ac_file" || continue;
  case $ac_file in
    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM ) ;;
    *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'`
       break;;
  esac
done
else $as_nop
  printf "%s\n" "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error $? "cannot compute suffix of object files: cannot compile
See \`config.log' for more details" "$LINENO" 5; }
fi
rm -f conftest.$ac_cv_objext conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5
printf "%s\n" "$ac_cv_objext" >&6; }
OBJEXT=$ac_cv_objext
ac_objext=$OBJEXT
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the compiler supports GNU C" >&5
printf %s "checking whether the compiler supports GNU C... " >&6; }
if test ${ac_cv_c_compiler_gnu+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main (void)
{
#ifndef __GNUC__
       choke me
#endif

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"
then :
  ac_compiler_gnu=yes
else $as_nop
  ac_compiler_gnu=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
ac_cv_c_compiler_gnu=$ac_compiler_gnu

fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
printf "%s\n" "$ac_cv_c_compiler_gnu" >&6; }
ac_compiler_gnu=$ac_cv_c_compiler_gnu

if test $ac_compiler_gnu = yes; then
  GCC=yes
else
  GCC=
fi
ac_test_CFLAGS=${CFLAGS+y}
ac_save_CFLAGS=$CFLAGS
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
printf %s "checking whether $CC accepts -g... " >&6; }
if test ${ac_cv_prog_cc_g+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  ac_save_c_werror_flag=$ac_c_werror_flag
   ac_c_werror_flag=yes
   ac_cv_prog_cc_g=no
   CFLAGS="-g"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main (void)
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"
then :
  ac_cv_prog_cc_g=yes
else $as_nop
  CFLAGS=""
      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main (void)
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"
then :

else $as_nop
  ac_c_werror_flag=$ac_save_c_werror_flag
	 CFLAGS="-g"
	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main (void)
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"
then :
  ac_cv_prog_cc_g=yes
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
   ac_c_werror_flag=$ac_save_c_werror_flag
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
printf "%s\n" "$ac_cv_prog_cc_g" >&6; }
if test $ac_test_CFLAGS; then
  CFLAGS=$ac_save_CFLAGS
elif test $ac_cv_prog_cc_g = yes; then
  if test "$GCC" = yes; then
    CFLAGS="-g -O2"
  else
    CFLAGS="-g"
  fi
else
  if test "$GCC" = yes; then
    CFLAGS="-O2"
  else
    CFLAGS=
  fi
fi
ac_prog_cc_stdc=no
if test x$ac_prog_cc_stdc = xno
then :
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C11 features" >&5
printf %s "checking for $CC option to enable C11 features... " >&6; }
if test ${ac_cv_prog_cc_c11+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  ac_cv_prog_cc_c11=no
ac_save_CC=$CC
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$ac_c_conftest_c11_program
_ACEOF
for ac_arg in '' -std=gnu11
do
  CC="$ac_save_CC $ac_arg"
  if ac_fn_c_try_compile "$LINENO"
then :
  ac_cv_prog_cc_c11=$ac_arg
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam
  test "x$ac_cv_prog_cc_c11" != "xno" && break
done
rm -f conftest.$ac_ext
CC=$ac_save_CC
fi

if test "x$ac_cv_prog_cc_c11" = xno
then :
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
printf "%s\n" "unsupported" >&6; }
else $as_nop
  if test "x$ac_cv_prog_cc_c11" = x
then :
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
printf "%s\n" "none needed" >&6; }
else $as_nop
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c11" >&5
printf "%s\n" "$ac_cv_prog_cc_c11" >&6; }
     CC="$CC $ac_cv_prog_cc_c11"
fi
  ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c11
  ac_prog_cc_stdc=c11
fi
fi
if test x$ac_prog_cc_stdc = xno
then :
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C99 features" >&5
printf %s "checking for $CC option to enable C99 features... " >&6; }
if test ${ac_cv_prog_cc_c99+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  ac_cv_prog_cc_c99=no
ac_save_CC=$CC
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$ac_c_conftest_c99_program
_ACEOF
for ac_arg in '' -std=gnu99 -std=c99 -c99 -qlanglvl=extc1x -qlanglvl=extc99 -AC99 -D_STDC_C99=
do
  CC="$ac_save_CC $ac_arg"
  if ac_fn_c_try_compile "$LINENO"
then :
  ac_cv_prog_cc_c99=$ac_arg
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam
  test "x$ac_cv_prog_cc_c99" != "xno" && break
done
rm -f conftest.$ac_ext
CC=$ac_save_CC
fi

if test "x$ac_cv_prog_cc_c99" = xno
then :
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
printf "%s\n" "unsupported" >&6; }
else $as_nop
  if test "x$ac_cv_prog_cc_c99" = x
then :
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
printf "%s\n" "none needed" >&6; }
else $as_nop
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c99" >&5
printf "%s\n" "$ac_cv_prog_cc_c99" >&6; }
     CC="$CC $ac_cv_prog_cc_c99"
fi
  ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c99
  ac_prog_cc_stdc=c99
fi
fi
if test x$ac_prog_cc_stdc = xno
then :
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C89 features" >&5
printf %s "checking for $CC option to enable C89 features... " >&6; }
if test ${ac_cv_prog_cc_c89+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  ac_cv_prog_cc_c89=no
ac_save_CC=$CC
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$ac_c_conftest_c89_program
_ACEOF
for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
do
  CC="$ac_save_CC $ac_arg"
  if ac_fn_c_try_compile "$LINENO"
then :
  ac_cv_prog_cc_c89=$ac_arg
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam
  test "x$ac_cv_prog_cc_c89" != "xno" && break
done
rm -f conftest.$ac_ext
CC=$ac_save_CC
fi

if test "x$ac_cv_prog_cc_c89" = xno
then :
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
printf "%s\n" "unsupported" >&6; }
else $as_nop
  if test "x$ac_cv_prog_cc_c89" = x
then :
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
printf "%s\n" "none needed" >&6; }
else $as_nop
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
printf "%s\n" "$ac_cv_prog_cc_c89" >&6; }
     CC="$CC $ac_cv_prog_cc_c89"
fi
  ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c89
  ac_prog_cc_stdc=c89
fi
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu


ac_header= ac_cache=
for ac_item in $ac_header_c_list
do
  if test $ac_cache; then
    ac_fn_c_check_header_compile "$LINENO" $ac_header ac_cv_header_$ac_cache "$ac_includes_default"
    if eval test \"x\$ac_cv_header_$ac_cache\" = xyes; then
      printf "%s\n" "#define $ac_item 1" >> confdefs.h
    fi
    ac_header= ac_cache=
  elif test $ac_header; then
    ac_cache=$ac_item
  else
    ac_header=$ac_item
  fi
done








if test $ac_cv_header_stdlib_h = yes && test $ac_cv_header_string_h = yes
then :

printf "%s\n" "#define STDC_HEADERS 1" >>confdefs.h

fi



    ac_base_cc="$CC"
    ac_base_cflags="$CFLAGS"

    test -z "$ac_user_cflags" -a -n "$GCC" -a -n "$ac_compile_with_warnings" -a -z "$ac_user_depcflags" && \
        DEPCFLAGS="-MD -MP"

    test -z "$ac_user_cflags" -a -n "$GCC" -a -n "$ac_compile_with_warnings" -a -z "$ac_user_depdirflag" && \
        DEPDIRFLAG='-MF $(DEPDIR)/$*.d'


    save_cflags="$CFLAGS"
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the C compiler accepts -W -Wall" >&5
printf %s "checking whether the C compiler accepts -W -Wall... " >&6; }
if test ${ac_cv_c_w_wall+y}
then :
  printf %s "(cached) " >&6
else $as_nop

        CFLAGS="$CFLAGS -W -Wall"
        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
int f(int x) { return x; }
int
main (void)
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"
then :
  ac_cv_c_w_wall=yes
else $as_nop
  ac_cv_c_w_wall=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_w_wall" >&5
printf "%s\n" "$ac_cv_c_w_wall" >&6; }
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the C compiler accepts -Werror" >&5
printf %s "checking whether the C compiler accepts -Werror... " >&6; }
if test ${ac_cv_c_werror+y}
then :
  printf %s "(cached) " >&6
else $as_nop

        CFLAGS="$CFLAGS -Werror"
        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
int f(int x) { return x; }
int
main (void)
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"
then :
  ac_cv_c_werror=yes
else $as_nop
  ac_cv_c_werror=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_werror" >&5
printf "%s\n" "$ac_cv_c_werror" >&6; }
    CFLAGS="$save_cflags"

    WARNING_CFLAGS=
    test -n "$ac_cv_c_w_wall" -a -n "$ac_compile_with_warnings" && \
        WARNING_CFLAGS=" -W -Wall"

    test -z "$ac_user_cflags" && \
        CFLAGS="$CFLAGS$WARNING_CFLAGS"



ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5
printf %s "checking how to run the C preprocessor... " >&6; }
# On Suns, sometimes $CPP names a directory.
if test -n "$CPP" && test -d "$CPP"; then
  CPP=
fi
if test -z "$CPP"; then
  if test ${ac_cv_prog_CPP+y}
then :
  printf %s "(cached) " >&6
else $as_nop
      # Double quotes because $CC needs to be expanded
    for CPP in "$CC -E" "$CC -E -traditional-cpp" cpp /lib/cpp
    do
      ac_preproc_ok=false
for ac_c_preproc_warn_flag in '' yes
do
  # Use a header file that comes with gcc, so configuring glibc
  # with a fresh cross-compiler works.
  # On the NeXT, cc -E runs the code through the compiler's parser,
  # not just through cpp. "Syntax error" is here to catch this case.
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <limits.h>
		     Syntax error
_ACEOF
if ac_fn_c_try_cpp "$LINENO"
then :

else $as_nop
  # Broken: fails on valid input.
continue
fi
rm -f conftest.err conftest.i conftest.$ac_ext

  # OK, works on sane cases.  Now check whether nonexistent headers
  # can be detected and how.
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <ac_nonexistent.h>
_ACEOF
if ac_fn_c_try_cpp "$LINENO"
then :
  # Broken: success on invalid input.
continue
else $as_nop
  # Passes both tests.
ac_preproc_ok=:
break
fi
rm -f conftest.err conftest.i conftest.$ac_ext

done
# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
rm -f conftest.i conftest.err conftest.$ac_ext
if $ac_preproc_ok
then :
  break
fi

    done
    ac_cv_prog_CPP=$CPP

fi
  CPP=$ac_cv_prog_CPP
else
  ac_cv_prog_CPP=$CPP
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5
printf "%s\n" "$CPP" >&6; }
ac_preproc_ok=false
for ac_c_preproc_warn_flag in '' yes
do
  # Use a header file that comes with gcc, so configuring glibc
  # with a fresh cross-compiler works.
  # On the NeXT, cc -E runs the code through the compiler's parser,
  # not just through cpp. "Syntax error" is here to catch this case.
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <limits.h>
		     Syntax error
_ACEOF
if ac_fn_c_try_cpp "$LINENO"
then :

else $as_nop
  # Broken: fails on valid input.
continue
fi
rm -f conftest.err conftest.i conftest.$ac_ext

  # OK, works on sane cases.  Now check whether nonexistent headers
  # can be detected and how.
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <ac_nonexistent.h>
_ACEOF
if ac_fn_c_try_cpp "$LINENO"
then :
  # Broken: success on invalid input.
continue
else $as_nop
  # Passes both tests.
ac_preproc_ok=:
break
fi
rm -f conftest.err conftest.i conftest.$ac_ext

done
# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
rm -f conftest.i conftest.err conftest.$ac_ext
if $ac_preproc_ok
then :

else $as_nop
  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error $? "C preprocessor \"$CPP\" fails sanity check
See \`config.log' for more details" "$LINENO" 5; }
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for inline" >&5
printf %s "checking for inline... " >&6; }
if test ${ac_cv_c_inline+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  ac_cv_c_inline=no
for ac_kw in inline __inline__ __inline; do
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#ifndef __cplusplus
typedef int foo_t;
static $ac_kw foo_t static_foo (void) {return 0; }
$ac_kw foo_t foo (void) {return 0; }
#endif

_ACEOF
if ac_fn_c_try_compile "$LINENO"
then :
  ac_cv_c_inline=$ac_kw
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
  test "$ac_cv_c_inline" != no && break
done

fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_inline" >&5
printf "%s\n" "$ac_cv_c_inline" >&6; }

case $ac_cv_c_inline in
  inline | yes) ;;
  *)
    case $ac_cv_c_inline in
      no) ac_val=;;
      *) ac_val=$ac_cv_c_inline;;
    esac
    cat >>confdefs.h <<_ACEOF
#ifndef __cplusplus
#define inline $ac_val
#endif
_ACEOF
    ;;
esac








ac_ext=cpp
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
if test -z "$CXX"; then
  if test -n "$CCC"; then
    CXX=$CCC
  else
    if test -n "$ac_tool_prefix"; then
  for ac_prog in g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC xlC_r xlC clang++
  do
    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
set dummy $ac_tool_prefix$ac_prog; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_prog_CXX+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test -n "$CXX"; then
  ac_cv_prog_CXX="$CXX" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
    ac_cv_prog_CXX="$ac_tool_prefix$ac_prog"
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
CXX=$ac_cv_prog_CXX
if test -n "$CXX"; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CXX" >&5
printf "%s\n" "$CXX" >&6; }
else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi


    test -n "$CXX" && break
  done
fi
if test -z "$CXX"; then
  ac_ct_CXX=$CXX
  for ac_prog in g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC xlC_r xlC clang++
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_prog_ac_ct_CXX+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test -n "$ac_ct_CXX"; then
  ac_cv_prog_ac_ct_CXX="$ac_ct_CXX" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_CXX="$ac_prog"
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_CXX=$ac_cv_prog_ac_ct_CXX
if test -n "$ac_ct_CXX"; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CXX" >&5
printf "%s\n" "$ac_ct_CXX" >&6; }
else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi


  test -n "$ac_ct_CXX" && break
done

  if test "x$ac_ct_CXX" = x; then
    CXX="g++"
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    CXX=$ac_ct_CXX
  fi
fi

  fi
fi
# Provide some information about the compiler.
printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for C++ compiler version" >&5
set X $ac_compile
ac_compiler=$2
for ac_option in --version -v -V -qversion; do
  { { ac_try="$ac_compiler $ac_option >&5"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
printf "%s\n" "$ac_try_echo"; } >&5
  (eval "$ac_compiler $ac_option >&5") 2>conftest.err
  ac_status=$?
  if test -s conftest.err; then
    sed '10a\
... rest of stderr output deleted ...
         10q' conftest.err >conftest.er1
    cat conftest.er1 >&5
  fi
  rm -f conftest.er1 conftest.err
  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }
done

{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the compiler supports GNU C++" >&5
printf %s "checking whether the compiler supports GNU C++... " >&6; }
if test ${ac_cv_cxx_compiler_gnu+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main (void)
{
#ifndef __GNUC__
       choke me
#endif

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_compiler_gnu=yes
else $as_nop
  ac_compiler_gnu=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
ac_cv_cxx_compiler_gnu=$ac_compiler_gnu

fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cxx_compiler_gnu" >&5
printf "%s\n" "$ac_cv_cxx_compiler_gnu" >&6; }
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

if test $ac_compiler_gnu = yes; then
  GXX=yes
else
  GXX=
fi
ac_test_CXXFLAGS=${CXXFLAGS+y}
ac_save_CXXFLAGS=$CXXFLAGS
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -g" >&5
printf %s "checking whether $CXX accepts -g... " >&6; }
if test ${ac_cv_prog_cxx_g+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  ac_save_cxx_werror_flag=$ac_cxx_werror_flag
   ac_cxx_werror_flag=yes
   ac_cv_prog_cxx_g=no
   CXXFLAGS="-g"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main (void)
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_prog_cxx_g=yes
else $as_nop
  CXXFLAGS=""
      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main (void)
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :

else $as_nop
  ac_cxx_werror_flag=$ac_save_cxx_werror_flag
	 CXXFLAGS="-g"
	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main (void)
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_prog_cxx_g=yes
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
   ac_cxx_werror_flag=$ac_save_cxx_werror_flag
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_g" >&5
printf "%s\n" "$ac_cv_prog_cxx_g" >&6; }
if test $ac_test_CXXFLAGS; then
  CXXFLAGS=$ac_save_CXXFLAGS
elif test $ac_cv_prog_cxx_g = yes; then
  if test "$GXX" = yes; then
    CXXFLAGS="-g -O2"
  else
    CXXFLAGS="-g"
  fi
else
  if test "$GXX" = yes; then
    CXXFLAGS="-O2"
  else
    CXXFLAGS=
  fi
fi
ac_prog_cxx_stdcxx=no
if test x$ac_prog_cxx_stdcxx = xno
then :
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CXX option to enable C++11 features" >&5
printf %s "checking for $CXX option to enable C++11 features... " >&6; }
if test ${ac_cv_prog_cxx_11+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  ac_cv_prog_cxx_11=no
ac_save_CXX=$CXX
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$ac_cxx_conftest_cxx11_program
_ACEOF
for ac_arg in '' -std=gnu++11 -std=gnu++0x -std=c++11 -std=c++0x -qlanglvl=extended0x -AA
do
  CXX="$ac_save_CXX $ac_arg"
  if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_prog_cxx_cxx11=$ac_arg
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam
  test "x$ac_cv_prog_cxx_cxx11" != "xno" && break
done
rm -f conftest.$ac_ext
CXX=$ac_save_CXX
fi

if test "x$ac_cv_prog_cxx_cxx11" = xno
then :
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
printf "%s\n" "unsupported" >&6; }
else $as_nop
  if test "x$ac_cv_prog_cxx_cxx11" = x
then :
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
printf "%s\n" "none needed" >&6; }
else $as_nop
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_cxx11" >&5
printf "%s\n" "$ac_cv_prog_cxx_cxx11" >&6; }
     CXX="$CXX $ac_cv_prog_cxx_cxx11"
fi
  ac_cv_prog_cxx_stdcxx=$ac_cv_prog_cxx_cxx11
  ac_prog_cxx_stdcxx=cxx11
fi
fi
if test x$ac_prog_cxx_stdcxx = xno
then :
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CXX option to enable C++98 features" >&5
printf %s "checking for $CXX option to enable C++98 features... " >&6; }
if test ${ac_cv_prog_cxx_98+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  ac_cv_prog_cxx_98=no
ac_save_CXX=$CXX
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$ac_cxx_conftest_cxx98_program
_ACEOF
for ac_arg in '' -std=gnu++98 -std=c++98 -qlanglvl=extended -AA
do
  CXX="$ac_save_CXX $ac_arg"
  if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_prog_cxx_cxx98=$ac_arg
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam
  test "x$ac_cv_prog_cxx_cxx98" != "xno" && break
done
rm -f conftest.$ac_ext
CXX=$ac_save_CXX
fi

if test "x$ac_cv_prog_cxx_cxx98" = xno
then :
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
printf "%s\n" "unsupported" >&6; }
else $as_nop
  if test "x$ac_cv_prog_cxx_cxx98" = x
then :
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
printf "%s\n" "none needed" >&6; }
else $as_nop
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_cxx98" >&5
printf "%s\n" "$ac_cv_prog_cxx_cxx98" >&6; }
     CXX="$CXX $ac_cv_prog_cxx_cxx98"
fi
  ac_cv_prog_cxx_stdcxx=$ac_cv_prog_cxx_cxx98
  ac_prog_cxx_stdcxx=cxx98
fi
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu





        if grep __cplusplus confdefs.h >/dev/null 2>&1; then
        sed 's/#ifdef __cplusplus/#if defined(__cplusplus) \&\& !defined(__KERNEL__)/' < confdefs.h > confdefs.h~
        mv confdefs.h~ confdefs.h
    fi

    if test -z "$GXX"; then
        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING:
=========================================

Your C++ compiler ($CXX) is not a GNU C++ compiler!
Either set the 'CXX' environment variable to tell me where
a GNU C++ compiler is, or compile at your own risk.
(This code uses a few GCC extensions and GCC-specific compiler options,
and Linux header files are GCC-specific.)

=========================================" >&5
printf "%s\n" "$as_me: WARNING:
=========================================

Your C++ compiler ($CXX) is not a GNU C++ compiler!
Either set the 'CXX' environment variable to tell me where
a GNU C++ compiler is, or compile at your own risk.
(This code uses a few GCC extensions and GCC-specific compiler options,
and Linux header files are GCC-specific.)

=========================================" >&2;}
    fi

    ac_ext=cpp
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu



    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether <new> works" >&5
printf %s "checking whether <new> works... " >&6; }
if test ${ac_cv_good_new_hdr+y}
then :
  printf %s "(cached) " >&6
else $as_nop

        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <new>
int
main (void)
{

    int a;
    int *b = new(&a) int;
    return 0;

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"
then :
  ac_cv_good_new_hdr=yes
else $as_nop
  ac_cv_good_new_hdr=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam \
    conftest$ac_exeext conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_good_new_hdr" >&5
printf "%s\n" "$ac_cv_good_new_hdr" >&6; }
    if test "$ac_cv_good_new_hdr" = yes; then

printf "%s\n" "#define HAVE_NEW_HDR 1" >>confdefs.h

    else
        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether <new.h> works" >&5
printf %s "checking whether <new.h> works... " >&6; }
if test ${ac_cv_good_new_h+y}
then :
  printf %s "(cached) " >&6
else $as_nop

            cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <new.h>
int
main (void)
{

    int a;
    int *b = new(&a) int;
    return 0;

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"
then :
  ac_cv_good_new_h=yes
else $as_nop
  ac_cv_good_new_h=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam \
    conftest$ac_exeext conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_good_new_h" >&5
printf "%s\n" "$ac_cv_good_new_h" >&6; }
        if test "$ac_cv_good_new_h" = yes; then

printf "%s\n" "#define HAVE_NEW_H 1" >>confdefs.h

        fi
    fi

        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the C++ compiler understands 'auto'" >&5
printf %s "checking whether the C++ compiler understands 'auto'... " >&6; }
if test ${ac_cv_cxx_auto+y}
then :
  printf %s "(cached) " >&6
else $as_nop

        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
struct s { int a; }; int f(s x) { auto &y = x; return y.a; }
int
main (void)
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_cxx_auto=yes
else $as_nop
  ac_cv_cxx_auto=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cxx_auto" >&5
printf "%s\n" "$ac_cv_cxx_auto" >&6; }
    if test "$ac_cv_cxx_auto" != yes -a -z "$ac_user_cxx"; then
        CXX="${CXX} -std=gnu++0x"
        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the C++ compiler with -std=gnu++0x understands 'auto'" >&5
printf %s "checking whether the C++ compiler with -std=gnu++0x understands 'auto'... " >&6; }
        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
struct s { int a; }; int f(s x) { auto &y = x; return y.a; }
int
main (void)
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_cxx_auto=yes
else $as_nop
  ac_cv_cxx_auto=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cxx_auto" >&5
printf "%s\n" "$ac_cv_cxx_auto" >&6; }
    fi

        save_cxxflags="$CXXFLAGS"
    test -n "$ac_cv_c_w_wall" && CXXFLAGS="$CXXFLAGS -W -Wall"
    test -n "$ac_cv_c_werror" && CXXFLAGS="$CXXFLAGS -Werror"

    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the C++ compiler understands constexpr" >&5
printf %s "checking whether the C++ compiler understands constexpr... " >&6; }
if test ${ac_cv_cxx_constexpr+y}
then :
  printf %s "(cached) " >&6
else $as_nop

        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
constexpr int f(int x) { return x + 1; }
int
main (void)
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_cxx_constexpr=yes
else $as_nop
  ac_cv_cxx_constexpr=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cxx_constexpr" >&5
printf "%s\n" "$ac_cv_cxx_constexpr" >&6; }
    if test "$ac_cv_cxx_constexpr" = yes; then

printf "%s\n" "#define HAVE_CXX_CONSTEXPR 1" >>confdefs.h

    fi

    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the C++ compiler understands rvalue references" >&5
printf %s "checking whether the C++ compiler understands rvalue references... " >&6; }
if test ${ac_cv_cxx_rvalue_references+y}
then :
  printf %s "(cached) " >&6
else $as_nop

        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
int f(int &) { return 1; } int f(int &&) { return 0; }
int
main (void)
{
return f(int());
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_cxx_rvalue_references=yes
else $as_nop
  ac_cv_cxx_rvalue_references=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cxx_rvalue_references" >&5
printf "%s\n" "$ac_cv_cxx_rvalue_references" >&6; }
    if test "$ac_cv_cxx_rvalue_references" = yes; then

printf "%s\n" "#define HAVE_CXX_RVALUE_REFERENCES 1" >>confdefs.h

    fi

    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the C++ compiler understands static_assert" >&5
printf %s "checking whether the C++ compiler understands static_assert... " >&6; }
if test ${ac_cv_cxx_static_assert+y}
then :
  printf %s "(cached) " >&6
else $as_nop

        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
const int f = 2;
int
main (void)
{
static_assert(f == 2, "f should be 2");
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_cxx_static_assert=yes
else $as_nop
  ac_cv_cxx_static_assert=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cxx_static_assert" >&5
printf "%s\n" "$ac_cv_cxx_static_assert" >&6; }
    if test "$ac_cv_cxx_static_assert" = yes; then

printf "%s\n" "#define HAVE_CXX_STATIC_ASSERT 1" >>confdefs.h

    fi

    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the C++ compiler understands template alias" >&5
printf %s "checking whether the C++ compiler understands template alias... " >&6; }
if test ${ac_cv_cxx_template_alias+y}
then :
  printf %s "(cached) " >&6
else $as_nop

        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
template <typename T> struct X { typedef T type; }; template <typename T> using Y = X<T>; int f(int x) { return x; }
int
main (void)
{
return f(Y<int>::type());
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_cxx_template_alias=yes
else $as_nop
  ac_cv_cxx_template_alias=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cxx_template_alias" >&5
printf "%s\n" "$ac_cv_cxx_template_alias" >&6; }
    if test "$ac_cv_cxx_template_alias" = yes; then

printf "%s\n" "#define HAVE_CXX_TEMPLATE_ALIAS 1" >>confdefs.h

    fi

    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the C++ compiler understands #pragma interface" >&5
printf %s "checking whether the C++ compiler understands #pragma interface... " >&6; }
if test ${ac_cv_cxx_pragma_interface+y}
then :
  printf %s "(cached) " >&6
else $as_nop

        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#pragma interface "foo.c"
#pragma implementation "foo.c"
int
main (void)
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_cxx_pragma_interface=yes
else $as_nop
  ac_cv_cxx_pragma_interface=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cxx_pragma_interface" >&5
printf "%s\n" "$ac_cv_cxx_pragma_interface" >&6; }
    if test "$ac_cv_cxx_pragma_interface" = yes; then

printf "%s\n" "#define HAVE_CXX_PRAGMA_INTERFACE 1" >>confdefs.h

    fi

    CXXFLAGS="$save_cxxflags"


    ac_base_cxx="$CXX"
    ac_base_cxxflags="$CXXFLAGS"

    test -z "$ac_user_cxxflags" -a -n "$GXX" && \
        CXXFLAGS="$CXXFLAGS$WARNING_CFLAGS"

ac_ext=cpp
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking how to run the C++ preprocessor" >&5
printf %s "checking how to run the C++ preprocessor... " >&6; }
if test -z "$CXXCPP"; then
  if test ${ac_cv_prog_CXXCPP+y}
then :
  printf %s "(cached) " >&6
else $as_nop
      # Double quotes because $CXX needs to be expanded
    for CXXCPP in "$CXX -E" cpp /lib/cpp
    do
      ac_preproc_ok=false
for ac_cxx_preproc_warn_flag in '' yes
do
  # Use a header file that comes with gcc, so configuring glibc
  # with a fresh cross-compiler works.
  # On the NeXT, cc -E runs the code through the compiler's parser,
  # not just through cpp. "Syntax error" is here to catch this case.
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <limits.h>
		     Syntax error
_ACEOF
if ac_fn_cxx_try_cpp "$LINENO"
then :

else $as_nop
  # Broken: fails on valid input.
continue
fi
rm -f conftest.err conftest.i conftest.$ac_ext

  # OK, works on sane cases.  Now check whether nonexistent headers
  # can be detected and how.
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <ac_nonexistent.h>
_ACEOF
if ac_fn_cxx_try_cpp "$LINENO"
then :
  # Broken: success on invalid input.
continue
else $as_nop
  # Passes both tests.
ac_preproc_ok=:
break
fi
rm -f conftest.err conftest.i conftest.$ac_ext

done
# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
rm -f conftest.i conftest.err conftest.$ac_ext
if $ac_preproc_ok
then :
  break
fi

    done
    ac_cv_prog_CXXCPP=$CXXCPP

fi
  CXXCPP=$ac_cv_prog_CXXCPP
else
  ac_cv_prog_CXXCPP=$CXXCPP
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CXXCPP" >&5
printf "%s\n" "$CXXCPP" >&6; }
ac_preproc_ok=false
for ac_cxx_preproc_warn_flag in '' yes
do
  # Use a header file that comes with gcc, so configuring glibc
  # with a fresh cross-compiler works.
  # On the NeXT, cc -E runs the code through the compiler's parser,
  # not just through cpp. "Syntax error" is here to catch this case.
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <limits.h>
		     Syntax error
_ACEOF
if ac_fn_cxx_try_cpp "$LINENO"
then :

else $as_nop
  # Broken: fails on valid input.
continue
fi
rm -f conftest.err conftest.i conftest.$ac_ext

  # OK, works on sane cases.  Now check whether nonexistent headers
  # can be detected and how.
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <ac_nonexistent.h>
_ACEOF
if ac_fn_cxx_try_cpp "$LINENO"
then :
  # Broken: success on invalid input.
continue
else $as_nop
  # Passes both tests.
ac_preproc_ok=:
break
fi
rm -f conftest.err conftest.i conftest.$ac_ext

done
# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
rm -f conftest.i conftest.err conftest.$ac_ext
if $ac_preproc_ok
then :

else $as_nop
  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error $? "C++ preprocessor \"$CXXCPP\" fails sanity check
See \`config.log' for more details" "$LINENO" 5; }
fi

ac_ext=cpp
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu


{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether C++ compiler accepts -Winconsistent-missing-override" >&5
printf %s "checking whether C++ compiler accepts -Winconsistent-missing-override... " >&6; }
if test ${ax_cv_check_cxxflags__Werror__Winconsistent_missing_override+y}
then :
  printf %s "(cached) " >&6
else $as_nop

  ax_check_save_flags=$CXXFLAGS
  CXXFLAGS="$CXXFLAGS -Werror -Winconsistent-missing-override"
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main (void)
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ax_cv_check_cxxflags__Werror__Winconsistent_missing_override=yes
else $as_nop
  ax_cv_check_cxxflags__Werror__Winconsistent_missing_override=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
  CXXFLAGS=$ax_check_save_flags
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ax_cv_check_cxxflags__Werror__Winconsistent_missing_override" >&5
printf "%s\n" "$ax_cv_check_cxxflags__Werror__Winconsistent_missing_override" >&6; }
if test "x$ax_cv_check_cxxflags__Werror__Winconsistent_missing_override" = xyes
then :
  CXXFLAGS="$CXXFLAGS -Wno-inconsistent-missing-override"
else $as_nop
  :
fi


if test "$cross_compiling" = yes
then :
  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error $? "cannot run test program while cross compiling
See \`config.log' for more details" "$LINENO" 5; }
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <new>

int main() {
    std::size_t sz = 8;
    std::align_val_t al{64};
    void* a = operator new(sz,al);
    return (a == nullptr?1:0);
}
_ACEOF
if ac_fn_cxx_try_run "$LINENO"
then :
  printf "%s\n" "#define HAVE_ALIGNED_NEW 1" >>confdefs.h

fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
  conftest.$ac_objext conftest.beam conftest.$ac_ext
fi




    test -z "$ac_user_kernel_cc" && \
        KERNEL_CC="$ac_base_cc"


    test -z "$ac_kernel_cflags" && \
        KERNEL_CFLAGS=`echo "$ac_base_cflags -Wno-undef" | sed 's/-g//'`




    test -z "$ac_user_kernel_cxx" && \
        KERNEL_CXX="$ac_base_cxx"


    test -z "$ac_user_kernel_cxxflags" && \
        KERNEL_CXXFLAGS=`echo "$ac_base_cxxflags -fno-exceptions -fno-rtti -fpermissive -Wno-undef -Wno-pointer-arith" | sed 's/-g//'`



ac_preset_ar="$AR"
if test -n "$ac_tool_prefix"; then
  # Extract the first word of "${ac_tool_prefix}ar", so it can be a program name with args.
set dummy ${ac_tool_prefix}ar; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_prog_AR+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test -n "$AR"; then
  ac_cv_prog_AR="$AR" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
    ac_cv_prog_AR="${ac_tool_prefix}ar"
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
AR=$ac_cv_prog_AR
if test -n "$AR"; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $AR" >&5
printf "%s\n" "$AR" >&6; }
else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi


fi
if test -z "$ac_cv_prog_AR"; then
  ac_ct_AR=$AR
  # Extract the first word of "ar", so it can be a program name with args.
set dummy ar; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_prog_ac_ct_AR+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test -n "$ac_ct_AR"; then
  ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_AR="ar"
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_AR=$ac_cv_prog_ac_ct_AR
if test -n "$ac_ct_AR"; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AR" >&5
printf "%s\n" "$ac_ct_AR" >&6; }
else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi

  if test "x$ac_ct_AR" = x; then
    AR=""
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    AR=$ac_ct_AR
  fi
else
  AR="$ac_cv_prog_AR"
fi

if test -n "$ac_tool_prefix"; then
  # Extract the first word of "${ac_tool_prefix}ld", so it can be a program name with args.
set dummy ${ac_tool_prefix}ld; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_prog_LD+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test -n "$LD"; then
  ac_cv_prog_LD="$LD" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
    ac_cv_prog_LD="${ac_tool_prefix}ld"
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
LD=$ac_cv_prog_LD
if test -n "$LD"; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $LD" >&5
printf "%s\n" "$LD" >&6; }
else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi


fi
if test -z "$ac_cv_prog_LD"; then
  ac_ct_LD=$LD
  # Extract the first word of "ld", so it can be a program name with args.
set dummy ld; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_prog_ac_ct_LD+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test -n "$ac_ct_LD"; then
  ac_cv_prog_ac_ct_LD="$ac_ct_LD" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_LD="ld"
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_LD=$ac_cv_prog_ac_ct_LD
if test -n "$ac_ct_LD"; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_LD" >&5
printf "%s\n" "$ac_ct_LD" >&6; }
else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi

  if test "x$ac_ct_LD" = x; then
    LD=""
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    LD=$ac_ct_LD
  fi
else
  LD="$ac_cv_prog_LD"
fi

if test -n "$ac_tool_prefix"; then
  # Extract the first word of "${ac_tool_prefix}nm", so it can be a program name with args.
set dummy ${ac_tool_prefix}nm; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_prog_NM+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test -n "$NM"; then
  ac_cv_prog_NM="$NM" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
    ac_cv_prog_NM="${ac_tool_prefix}nm"
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
NM=$ac_cv_prog_NM
if test -n "$NM"; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $NM" >&5
printf "%s\n" "$NM" >&6; }
else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi


fi
if test -z "$ac_cv_prog_NM"; then
  ac_ct_NM=$NM
  # Extract the first word of "nm", so it can be a program name with args.
set dummy nm; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_prog_ac_ct_NM+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test -n "$ac_ct_NM"; then
  ac_cv_prog_ac_ct_NM="$ac_ct_NM" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_NM="nm"
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_NM=$ac_cv_prog_ac_ct_NM
if test -n "$ac_ct_NM"; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_NM" >&5
printf "%s\n" "$ac_ct_NM" >&6; }
else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi

  if test "x$ac_ct_NM" = x; then
    NM=""
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    NM=$ac_ct_NM
  fi
else
  NM="$ac_cv_prog_NM"
fi

if test -n "$ac_tool_prefix"; then
  # Extract the first word of "${ac_tool_prefix}objcopy", so it can be a program name with args.
set dummy ${ac_tool_prefix}objcopy; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_prog_OBJCOPY+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test -n "$OBJCOPY"; then
  ac_cv_prog_OBJCOPY="$OBJCOPY" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
    ac_cv_prog_OBJCOPY="${ac_tool_prefix}objcopy"
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
OBJCOPY=$ac_cv_prog_OBJCOPY
if test -n "$OBJCOPY"; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $OBJCOPY" >&5
printf "%s\n" "$OBJCOPY" >&6; }
else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi


fi
if test -z "$ac_cv_prog_OBJCOPY"; then
  ac_ct_OBJCOPY=$OBJCOPY
  # Extract the first word of "objcopy", so it can be a program name with args.
set dummy objcopy; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_prog_ac_ct_OBJCOPY+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test -n "$ac_ct_OBJCOPY"; then
  ac_cv_prog_ac_ct_OBJCOPY="$ac_ct_OBJCOPY" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_OBJCOPY="objcopy"
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_OBJCOPY=$ac_cv_prog_ac_ct_OBJCOPY
if test -n "$ac_ct_OBJCOPY"; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OBJCOPY" >&5
printf "%s\n" "$ac_ct_OBJCOPY" >&6; }
else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi

  if test "x$ac_ct_OBJCOPY" = x; then
    OBJCOPY=""
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    OBJCOPY=$ac_ct_OBJCOPY
  fi
else
  OBJCOPY="$ac_cv_prog_OBJCOPY"
fi

if test -n "$ac_tool_prefix"; then
  # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args.
set dummy ${ac_tool_prefix}ranlib; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_prog_RANLIB+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test -n "$RANLIB"; then
  ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
    ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib"
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
RANLIB=$ac_cv_prog_RANLIB
if test -n "$RANLIB"; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $RANLIB" >&5
printf "%s\n" "$RANLIB" >&6; }
else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi


fi
if test -z "$ac_cv_prog_RANLIB"; then
  ac_ct_RANLIB=$RANLIB
  # Extract the first word of "ranlib", so it can be a program name with args.
set dummy ranlib; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_prog_ac_ct_RANLIB+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test -n "$ac_ct_RANLIB"; then
  ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_RANLIB="ranlib"
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB
if test -n "$ac_ct_RANLIB"; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_RANLIB" >&5
printf "%s\n" "$ac_ct_RANLIB" >&6; }
else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi

  if test "x$ac_ct_RANLIB" = x; then
    RANLIB=":"
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    RANLIB=$ac_ct_RANLIB
  fi
else
  RANLIB="$ac_cv_prog_RANLIB"
fi

if test -n "$ac_tool_prefix"; then
  # Extract the first word of "${ac_tool_prefix}readelf", so it can be a program name with args.
set dummy ${ac_tool_prefix}readelf; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_prog_READELF+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test -n "$READELF"; then
  ac_cv_prog_READELF="$READELF" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
    ac_cv_prog_READELF="${ac_tool_prefix}readelf"
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
READELF=$ac_cv_prog_READELF
if test -n "$READELF"; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $READELF" >&5
printf "%s\n" "$READELF" >&6; }
else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi


fi
if test -z "$ac_cv_prog_READELF"; then
  ac_ct_READELF=$READELF
  # Extract the first word of "readelf", so it can be a program name with args.
set dummy readelf; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_prog_ac_ct_READELF+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test -n "$ac_ct_READELF"; then
  ac_cv_prog_ac_ct_READELF="$ac_ct_READELF" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_READELF="readelf"
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_READELF=$ac_cv_prog_ac_ct_READELF
if test -n "$ac_ct_READELF"; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_READELF" >&5
printf "%s\n" "$ac_ct_READELF" >&6; }
else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi

  if test "x$ac_ct_READELF" = x; then
    READELF=":"
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    READELF=$ac_ct_READELF
  fi
else
  READELF="$ac_cv_prog_READELF"
fi

if test -n "$ac_tool_prefix"; then
  # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args.
set dummy ${ac_tool_prefix}strip; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_prog_STRIP+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test -n "$STRIP"; then
  ac_cv_prog_STRIP="$STRIP" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
    ac_cv_prog_STRIP="${ac_tool_prefix}strip"
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
STRIP=$ac_cv_prog_STRIP
if test -n "$STRIP"; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5
printf "%s\n" "$STRIP" >&6; }
else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi


fi
if test -z "$ac_cv_prog_STRIP"; then
  ac_ct_STRIP=$STRIP
  # Extract the first word of "strip", so it can be a program name with args.
set dummy strip; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_prog_ac_ct_STRIP+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test -n "$ac_ct_STRIP"; then
  ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_STRIP="strip"
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP
if test -n "$ac_ct_STRIP"; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5
printf "%s\n" "$ac_ct_STRIP" >&6; }
else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi

  if test "x$ac_ct_STRIP" = x; then
    STRIP=":"
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    STRIP=$ac_ct_STRIP
  fi
else
  STRIP="$ac_cv_prog_STRIP"
fi


conf_auxdir='$(top_srcdir)'


test -z "$AR_CREATEFLAGS" && AR_CREATEFLAGS=cru


EXTRA_DRIVER_OBJS=
EXTRA_TOOL_OBJS=
INCLUDES_LLVM=
LLVM_OBJS=
LIBS_LLVM=



# Check whether --enable-userlevel was given.
if test ${enable_userlevel+y}
then :
  enableval=$enable_userlevel; :
else $as_nop
  enable_userlevel=yes
fi


# Check whether --enable-user-multithread was given.
if test ${enable_user_multithread+y}
then :
  enableval=$enable_user_multithread; :
else $as_nop
  enable_user_multithread=yes
fi


# Check whether --enable-fullpush-nonatomic was given.
if test ${enable_fullpush_nonatomic+y}
then :
  enableval=$enable_fullpush_nonatomic; :
else $as_nop
  enable_fullpush_nonatomic=yes
fi


if test "x$enable_fullpush_nonatomic" = "xyes"; then
    printf "%s\n" "#define HAVE_FULLPUSH_NONATOMIC 1" >>confdefs.h

fi


# Check whether --enable-batch was given.
if test ${enable_batch+y}
then :
  enableval=$enable_batch; :
else $as_nop
  enable_batch=$enable_userlevel
fi


if test "x$enable_batch" = "xyes"; then
    if test "x$enable_userlevel" != "xyes"; then
        as_fn_error $? "
=========================================

--enable-batch requires --enable-userlevel which was not provided.

=========================================" "$LINENO" 5
    fi
    printf "%s\n" "#define HAVE_BATCH 1" >>confdefs.h

    HAVE_BATCH=yes

fi

# Check whether --enable-verbose-batch was given.
if test ${enable_verbose_batch+y}
then :
  enableval=$enable_verbose_batch; :
else $as_nop
  enable_verbose_batch=yes
fi


if test "x$enable_verbose_batch" = "xyes"; then
    printf "%s\n" "#define HAVE_VERBOSE_BATCH 1" >>confdefs.h

fi

# Check whether --enable-auto-batch was given.
if test ${enable_auto_batch+y}
then :
  enableval=$enable_auto_batch; :
else $as_nop
  enable_auto_batch=no
fi



if test "x$enable_auto_batch" = "xno" ; then
    :
elif test "x$enable_auto_batch" = "xyes" -o "x$enable_auto_batch" = "xport"; then

printf "%s\n" "#define HAVE_AUTO_BATCH AUTO_BATCH_PORT" >>confdefs.h

elif test "x$enable_auto_batch" = "xlist"; then

printf "%s\n" "#define HAVE_AUTO_BATCH AUTO_BATCH_LIST" >>confdefs.h

elif test "x$enable_auto_batch" = "xjump"; then

printf "%s\n" "#define HAVE_AUTO_BATCH AUTO_BATCH_JUMP" >>confdefs.h

else
        as_fn_error $? "
=========================================

--enable-auto-batch only accepts jump, list or port as modes

=========================================" "$LINENO" 5
fi

# Check whether --enable-netmap-pool was given.
if test ${enable_netmap_pool+y}
then :
  enableval=$enable_netmap_pool; :
else $as_nop
  enable_netmap_pool=no
fi


PTHREAD_LIBS=""


if test "x$enable_user_multithread" = xyes; then
    SAVE_LIBS="$LIBS"
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for library containing pthread_create" >&5
printf %s "checking for library containing pthread_create... " >&6; }
if test ${ac_cv_search_pthread_create+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

namespace conftest {
  extern "C" int pthread_create ();
}
int
main (void)
{
return conftest::pthread_create ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' pthread
do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"
then :
  ac_cv_search_pthread_create=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam \
    conftest$ac_exeext
  if test ${ac_cv_search_pthread_create+y}
then :
  break
fi
done
if test ${ac_cv_search_pthread_create+y}
then :

else $as_nop
  ac_cv_search_pthread_create=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_pthread_create" >&5
printf "%s\n" "$ac_cv_search_pthread_create" >&6; }
ac_res=$ac_cv_search_pthread_create
if test "$ac_res" != no
then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  ac_have_libpthread=yes
else $as_nop
  ac_have_libpthread=no
fi

           for ac_header in pthread.h
do :
  ac_fn_cxx_check_header_compile "$LINENO" "pthread.h" "ac_cv_header_pthread_h" "$ac_includes_default"
if test "x$ac_cv_header_pthread_h" = xyes
then :
  printf "%s\n" "#define HAVE_PTHREAD_H 1" >>confdefs.h
 ac_have_pthread_h=yes
else $as_nop
  ac_have_pthread_h=no
fi

done
    if test "$ac_have_libpthread$ac_have_pthread_h" = yesyes; then
        printf "%s\n" "#define HAVE_USER_MULTITHREAD 1" >>confdefs.h

        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CXX options needed to detect all undeclared functions" >&5
printf %s "checking for $CXX options needed to detect all undeclared functions... " >&6; }
if test ${ac_cv_cxx_undeclared_builtin_options+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  ac_save_CFLAGS=$CFLAGS
   ac_cv_cxx_undeclared_builtin_options='cannot detect'
   for ac_arg in '' -fno-builtin; do
     CFLAGS="$ac_save_CFLAGS $ac_arg"
     # This test program should *not* compile successfully.
     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main (void)
{
(void) strchr;
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :

else $as_nop
  # This test program should compile successfully.
        # No library function is consistently available on
        # freestanding implementations, so test against a dummy
        # declaration.  Include always-available headers on the
        # off chance that they somehow elicit warnings.
        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <float.h>
#include <limits.h>
#include <stdarg.h>
#include <stddef.h>
extern void ac_decl (int, char *);

int
main (void)
{
(void) ac_decl (0, (char *) 0);
  (void) ac_decl;

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  if test x"$ac_arg" = x
then :
  ac_cv_cxx_undeclared_builtin_options='none needed'
else $as_nop
  ac_cv_cxx_undeclared_builtin_options=$ac_arg
fi
          break
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
    done
    CFLAGS=$ac_save_CFLAGS

fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cxx_undeclared_builtin_options" >&5
printf "%s\n" "$ac_cv_cxx_undeclared_builtin_options" >&6; }
  case $ac_cv_cxx_undeclared_builtin_options in #(
  'cannot detect') :
    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error $? "cannot make $CXX report undeclared builtins
See \`config.log' for more details" "$LINENO" 5; } ;; #(
  'none needed') :
    ac_cxx_undeclared_builtin_options='' ;; #(
  *) :
    ac_cxx_undeclared_builtin_options=$ac_cv_cxx_undeclared_builtin_options ;;
esac

ac_fn_check_decl "$LINENO" "pthread_setaffinity_np" "ac_cv_have_decl_pthread_setaffinity_np" "#define _GNU_SOURCE
#include <pthread.h>
" "$ac_cxx_undeclared_builtin_options" "CXXFLAGS"
if test "x$ac_cv_have_decl_pthread_setaffinity_np" = xyes
then :
  ac_have_decl=1
else $as_nop
  ac_have_decl=0
fi
printf "%s\n" "#define HAVE_DECL_PTHREAD_SETAFFINITY_NP $ac_have_decl" >>confdefs.h

        if echo "$LIBS" | grep -e -lpthread >/dev/null 2>&1; then
            PTHREAD_LIBS="-lpthread"
        fi
    else
        as_fn_error $? "
=========================================

Can't find -lpthread and/or <pthread.h>, so I can't compile with
--enable-user-multithread.

=========================================" "$LINENO" 5
    fi
    LIBS="$SAVE_LIBS"
fi

save_cpp="$CPPFLAGS"
save_libs="$LIBS"
CPPFLAGS="$CPPFLAGS -I/usr/local/include/mbglib/"
LIBS="$LIBS -lmbgdevio"
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for library containing mbg_open_device" >&5
printf %s "checking for library containing mbg_open_device... " >&6; }
if test ${ac_cv_search_mbg_open_device+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

namespace conftest {
  extern "C" int mbg_open_device ();
}
int
main (void)
{
return conftest::mbg_open_device ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' mbgdevio
do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"
then :
  ac_cv_search_mbg_open_device=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam \
    conftest$ac_exeext
  if test ${ac_cv_search_mbg_open_device+y}
then :
  break
fi
done
if test ${ac_cv_search_mbg_open_device+y}
then :

else $as_nop
  ac_cv_search_mbg_open_device=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_mbg_open_device" >&5
printf "%s\n" "$ac_cv_search_mbg_open_device" >&6; }
ac_res=$ac_cv_search_mbg_open_device
if test "$ac_res" != no
then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  ac_have_libmbdevio=yes
else $as_nop
  ac_have_libmbdevio=no
fi

       for ac_header in mbgdevio.h
do :
  ac_fn_cxx_check_header_compile "$LINENO" "mbgdevio.h" "ac_cv_header_mbgdevio_h" "$ac_includes_default"
if test "x$ac_cv_header_mbgdevio_h" = xyes
then :
  printf "%s\n" "#define HAVE_MBGDEVIO_H 1" >>confdefs.h
 ac_have_mbgdevio_h=yes
else $as_nop
  ac_have_mbgdevio_h=no
fi

done
#if test "$ac_have_libpthread$ac_have_pthread_h" = yesyes; then
if test "$ac_have_mbgdevio_h" = yes; then
    printf "%s\n" "#define HAVE_MBGLIB 1" >>confdefs.h

else
    CPPFLAGS="$save_cpp"
    LIBS="$save_libs"
fi

# Check whether --enable-bpf was given.
if test ${enable_bpf+y}
then :
  enableval=$enable_bpf; :
else $as_nop
  enable_bpf=yes
fi



{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for library containing bpf_prog_load_xattr" >&5
printf %s "checking for library containing bpf_prog_load_xattr... " >&6; }
if test ${ac_cv_search_bpf_prog_load_xattr+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

namespace conftest {
  extern "C" int bpf_prog_load_xattr ();
}
int
main (void)
{
return conftest::bpf_prog_load_xattr ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' bpf
do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"
then :
  ac_cv_search_bpf_prog_load_xattr=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam \
    conftest$ac_exeext
  if test ${ac_cv_search_bpf_prog_load_xattr+y}
then :
  break
fi
done
if test ${ac_cv_search_bpf_prog_load_xattr+y}
then :

else $as_nop
  ac_cv_search_bpf_prog_load_xattr=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_bpf_prog_load_xattr" >&5
printf "%s\n" "$ac_cv_search_bpf_prog_load_xattr" >&6; }
ac_res=$ac_cv_search_bpf_prog_load_xattr
if test "$ac_res" != no
then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  ac_have_libbpf=yes
else $as_nop
  ac_have_libbpf=no
fi

       for ac_header in bpf/bpf.h
do :
  ac_fn_cxx_check_header_compile "$LINENO" "bpf/bpf.h" "ac_cv_header_bpf_bpf_h" "$ac_includes_default"
if test "x$ac_cv_header_bpf_bpf_h" = xyes
then :
  printf "%s\n" "#define HAVE_BPF_BPF_H 1" >>confdefs.h
 ac_have_libbpf_h=yes
else $as_nop
  ac_have_libbpf_h=no
fi

done
if test "x$ac_have_libbpf$ac_have_libbpf_h$enable_bpf" = "xyesyesyes"; then
    printf "%s\n" "#define HAVE_BPF 1" >>confdefs.h

    have_libbpf=yes
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <bpf/bpf.h>
    enum bpf_stats_type test;

int
main (void)
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_bpf_has_bpf_stats_type=yes
else $as_nop
  ac_cv_bpf_has_bpf_stats_type=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
    if test "x$ac_cv_bpf_has_bpf_stats_type" = "xyes"; then
        printf "%s\n" "#define HAVE_BPF_STATS_TYPE 1" >>confdefs.h

    fi
else
    have_libbpf=no
    enable_bpf=no
fi

{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for library containing curl_global_init" >&5
printf %s "checking for library containing curl_global_init... " >&6; }
if test ${ac_cv_search_curl_global_init+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

namespace conftest {
  extern "C" int curl_global_init ();
}
int
main (void)
{
return conftest::curl_global_init ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' curl
do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"
then :
  ac_cv_search_curl_global_init=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam \
    conftest$ac_exeext
  if test ${ac_cv_search_curl_global_init+y}
then :
  break
fi
done
if test ${ac_cv_search_curl_global_init+y}
then :

else $as_nop
  ac_cv_search_curl_global_init=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_curl_global_init" >&5
printf "%s\n" "$ac_cv_search_curl_global_init" >&6; }
ac_res=$ac_cv_search_curl_global_init
if test "$ac_res" != no
then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  ac_have_curl=yes
else $as_nop
  ac_have_curl=no
fi

       for ac_header in curl/curl.h
do :
  ac_fn_cxx_check_header_compile "$LINENO" "curl/curl.h" "ac_cv_header_curl_curl_h" "$ac_includes_default"
if test "x$ac_cv_header_curl_curl_h" = xyes
then :
  printf "%s\n" "#define HAVE_CURL_CURL_H 1" >>confdefs.h
 ac_have_curl_h=yes
else $as_nop
  ac_have_curl_h=no
fi

done
if test "$ac_have_curl$ac_have_curl_h" = yesyes; then
    printf "%s\n" "#define HAVE_CURL 1" >>confdefs.h

fi

{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for library containing elf_version" >&5
printf %s "checking for library containing elf_version... " >&6; }
if test ${ac_cv_search_elf_version+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

namespace conftest {
  extern "C" int elf_version ();
}
int
main (void)
{
return conftest::elf_version ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' elf
do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"
then :
  ac_cv_search_elf_version=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam \
    conftest$ac_exeext
  if test ${ac_cv_search_elf_version+y}
then :
  break
fi
done
if test ${ac_cv_search_elf_version+y}
then :

else $as_nop
  ac_cv_search_elf_version=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_elf_version" >&5
printf "%s\n" "$ac_cv_search_elf_version" >&6; }
ac_res=$ac_cv_search_elf_version
if test "$ac_res" != no
then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  ac_have_elf=yes
else $as_nop
  ac_have_elf=no
fi


{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for library containing MHD_start_daemon" >&5
printf %s "checking for library containing MHD_start_daemon... " >&6; }
if test ${ac_cv_search_MHD_start_daemon+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

namespace conftest {
  extern "C" int MHD_start_daemon ();
}
int
main (void)
{
return conftest::MHD_start_daemon ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' microhttpd
do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"
then :
  ac_cv_search_MHD_start_daemon=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam \
    conftest$ac_exeext
  if test ${ac_cv_search_MHD_start_daemon+y}
then :
  break
fi
done
if test ${ac_cv_search_MHD_start_daemon+y}
then :

else $as_nop
  ac_cv_search_MHD_start_daemon=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_MHD_start_daemon" >&5
printf "%s\n" "$ac_cv_search_MHD_start_daemon" >&6; }
ac_res=$ac_cv_search_MHD_start_daemon
if test "$ac_res" != no
then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  ac_have_libmicrohttpd=yes
else $as_nop
  ac_have_libmicrohttpd=no
fi

       for ac_header in microhttpd.h
do :
  ac_fn_cxx_check_header_compile "$LINENO" "microhttpd.h" "ac_cv_header_microhttpd_h" "$ac_includes_default"
if test "x$ac_cv_header_microhttpd_h" = xyes
then :
  printf "%s\n" "#define HAVE_MICROHTTPD_H 1" >>confdefs.h
 ac_have_microhttpd_h=yes
else $as_nop
  ac_have_microhttpd_h=no
fi

done
if test "x$ac_have_libmicrohttpd$ac_have_microhttpd_h" = "xyesyes"; then
    have_httpd=yes
    printf "%s\n" "#define HAVE_MICROHTTPD 1" >>confdefs.h

else
    have_httpd=no
fi

{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for main in -lre2" >&5
printf %s "checking for main in -lre2... " >&6; }
if test ${ac_cv_lib_re2_main+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lre2  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

namespace conftest {
  extern "C" int main ();
}
int
main (void)
{
return conftest::main ();
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"
then :
  ac_cv_lib_re2_main=yes
else $as_nop
  ac_cv_lib_re2_main=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_re2_main" >&5
printf "%s\n" "$ac_cv_lib_re2_main" >&6; }
if test "x$ac_cv_lib_re2_main" = xyes
then :
  ac_have_re2=yes
else $as_nop
  ac_have_re2=no
fi

       for ac_header in re2/re2.h
do :
  ac_fn_cxx_check_header_compile "$LINENO" "re2/re2.h" "ac_cv_header_re2_re2_h" "$ac_includes_default"
if test "x$ac_cv_header_re2_re2_h" = xyes
then :
  printf "%s\n" "#define HAVE_RE2_RE2_H 1" >>confdefs.h
 ac_have_re2_h=yes
else $as_nop
  ac_have_re2_h=no
fi

done
if test "x$ac_have_re2$ac_have_re2_h" = "xyesyes"; then
    have_re2=yes
    LIBS="$LIBS -lre2"
    printf "%s\n" "#define HAVE_RE2 1" >>confdefs.h

else
    have_re2=no
fi

{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for hs_compile_multi in -lhs" >&5
printf %s "checking for hs_compile_multi in -lhs... " >&6; }
if test ${ac_cv_lib_hs_hs_compile_multi+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lhs  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

namespace conftest {
  extern "C" int hs_compile_multi ();
}
int
main (void)
{
return conftest::hs_compile_multi ();
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"
then :
  ac_cv_lib_hs_hs_compile_multi=yes
else $as_nop
  ac_cv_lib_hs_hs_compile_multi=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_hs_hs_compile_multi" >&5
printf "%s\n" "$ac_cv_lib_hs_hs_compile_multi" >&6; }
if test "x$ac_cv_lib_hs_hs_compile_multi" = xyes
then :
  ac_have_hyperscan=yes
else $as_nop
  ac_have_hyperscan=no
fi

       for ac_header in hs/hs.h
do :
  ac_fn_cxx_check_header_compile "$LINENO" "hs/hs.h" "ac_cv_header_hs_hs_h" "$ac_includes_default"
if test "x$ac_cv_header_hs_hs_h" = xyes
then :
  printf "%s\n" "#define HAVE_HS_HS_H 1" >>confdefs.h
 ac_have_hyperscan_h=yes
else $as_nop
  ac_have_hyperscan_h=no
fi

done
if test "x$ac_have_hyperscan$ac_have_hyperscan_h" = "xyesyes"; then
    have_hyperscan=yes
    LIBS="$LIBS -lhs"
    printf "%s\n" "#define HAVE_HYPERSCAN 1" >>confdefs.h

else
    have_hyperscan=no
fi

{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for library containing PAPI_start_counters" >&5
printf %s "checking for library containing PAPI_start_counters... " >&6; }
if test ${ac_cv_search_PAPI_start_counters+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

namespace conftest {
  extern "C" int PAPI_start_counters ();
}
int
main (void)
{
return conftest::PAPI_start_counters ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' papi
do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"
then :
  ac_cv_search_PAPI_start_counters=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam \
    conftest$ac_exeext
  if test ${ac_cv_search_PAPI_start_counters+y}
then :
  break
fi
done
if test ${ac_cv_search_PAPI_start_counters+y}
then :

else $as_nop
  ac_cv_search_PAPI_start_counters=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_PAPI_start_counters" >&5
printf "%s\n" "$ac_cv_search_PAPI_start_counters" >&6; }
ac_res=$ac_cv_search_PAPI_start_counters
if test "$ac_res" != no
then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  ac_have_papi=yes
else $as_nop
  ac_have_papi=no
fi

       for ac_header in papi.h
do :
  ac_fn_cxx_check_header_compile "$LINENO" "papi.h" "ac_cv_header_papi_h" "$ac_includes_default"
if test "x$ac_cv_header_papi_h" = xyes
then :
  printf "%s\n" "#define HAVE_PAPI_H 1" >>confdefs.h
 ac_have_papi_h=yes
else $as_nop
  ac_have_papi_h=no
fi

done
if test "x$ac_have_papi_h$ac_have_papi" = "xyesyes"; then
    printf "%s\n" "#define HAVE_PAPI 1" >>confdefs.h

    have_papi=yes
else
    have_papi=no
fi

printf "%s\n" "#define HAVE_JSON 1" >>confdefs.h


{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for main in -lpci" >&5
printf %s "checking for main in -lpci... " >&6; }
if test ${ac_cv_lib_pci_main+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lpci  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

namespace conftest {
  extern "C" int main ();
}
int
main (void)
{
return conftest::main ();
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"
then :
  ac_cv_lib_pci_main=yes
else $as_nop
  ac_cv_lib_pci_main=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_pci_main" >&5
printf "%s\n" "$ac_cv_lib_pci_main" >&6; }
if test "x$ac_cv_lib_pci_main" = xyes
then :
  ac_have_pci=yes
else $as_nop
  ac_have_pci=no
fi

       for ac_header in pci/pci.h
do :
  ac_fn_cxx_check_header_compile "$LINENO" "pci/pci.h" "ac_cv_header_pci_pci_h" "$ac_includes_default"
if test "x$ac_cv_header_pci_pci_h" = xyes
then :
  printf "%s\n" "#define HAVE_PCI_PCI_H 1" >>confdefs.h
 ac_have_pci_h=yes
else $as_nop
  ac_have_pci_h=no
fi

done
if test "x$ac_have_pci$ac_have_pci_h" = "xyesyes"; then
    have_pci=yes
    LIBS="$LIBS -lpci"
    printf "%s\n" "#define HAVE_PCI 1" >>confdefs.h

else
    have_pci=no
fi

# Check whether --enable-rand-align was given.
if test ${enable_rand_align+y}
then :
  enableval=$enable_rand_align; :
else $as_nop
  enable_rand_align=no
fi

if test "x$enable_rand_align" = "xyes"; then
    printf "%s\n" "#define HAVE_RAND_ALIGN 1" >>confdefs.h

    DO_RAND_ALIGN=1

else
    DO_RAND_ALIGN=0

fi

# Check whether --enable-select was given.
if test ${enable_select+y}
then :
  enableval=$enable_select; :
else $as_nop
  enable_select="select poll kqueue"
fi

# Check whether --enable-poll was given.
if test ${enable_poll+y}
then :
  enableval=$enable_poll; :
else $as_nop
  enable_poll=yes
fi

# Check whether --enable-kqueue was given.
if test ${enable_kqueue+y}
then :
  enableval=$enable_kqueue; :
else $as_nop
  enable_kqueue=yes
fi


if test "$enable_select" = yes; then
    enable_select='select poll kqueue'
elif test "$enable_select" = no; then
    enable_select='poll kqueue'
fi
if echo "$enable_select" | grep select >/dev/null 2>&1; then

printf "%s\n" "#define HAVE_ALLOW_SELECT 1" >>confdefs.h

fi
if echo "$enable_select" | grep poll >/dev/null 2>&1 && test "$enable_poll" = yes; then

printf "%s\n" "#define HAVE_ALLOW_POLL 1" >>confdefs.h

fi
if echo "$enable_select" | grep kqueue >/dev/null 2>&1 && test "$enable_kqueue" = yes; then

printf "%s\n" "#define HAVE_ALLOW_KQUEUE 1" >>confdefs.h

fi



# Check whether --enable-dpdk was given.
if test ${enable_dpdk+y}
then :
  enableval=$enable_dpdk; :
else $as_nop
  enable_dpdk=no
fi


# Check whether --enable-dpdk-pool was given.
if test ${enable_dpdk_pool+y}
then :
  enableval=$enable_dpdk_pool; :
else $as_nop
  enable_dpdk_pool=no
fi


# Check whether --enable-dpdk-xchg was given.
if test ${enable_dpdk_xchg+y}
then :
  enableval=$enable_dpdk_xchg; :
else $as_nop
  enable_dpdk_xchg=no
fi


# Check whether --enable-dpdk-packet was given.
if test ${enable_dpdk_packet+y}
then :
  enableval=$enable_dpdk_packet; :
else $as_nop
  enable_dpdk_packet=no
fi


# Check whether --enable-dpdk-softqueue was given.
if test ${enable_dpdk_softqueue+y}
then :
  enableval=$enable_dpdk_softqueue; :
else $as_nop
  printf "%s\n" "#define HAVE_IQUEUE 1" >>confdefs.h

fi


# Check whether --enable-flow-api was given.
if test ${enable_flow_api+y}
then :
  enableval=$enable_flow_api; :
else $as_nop
  enable_flow_api=no
fi



# Check whether --enable-click-pool was given.
if test ${enable_click_pool+y}
then :
  enableval=$enable_click_pool; :
else $as_nop
  enable_click_pool=yes;printf "%s\n" "#define ALLOW_CLICK_PACKET_POOL 1" >>confdefs.h

fi



# Check whether --enable-pool-inlining was given.
if test ${enable_pool_inlining+y}
then :
  enableval=$enable_pool_inlining; :
else $as_nop
  printf "%s\n" "#define POOL_INLINING 1" >>confdefs.h

fi


# Check whether --enable-inlined-allanno was given.
if test ${enable_inlined_allanno+y}
then :
  enableval=$enable_inlined_allanno; :
else $as_nop
  enable_inlined_allanno=no
fi

if test "x$enable_inlined_allanno" = "xyes"; then
    printf "%s\n" "#define INLINED_ALLANNO 1" >>confdefs.h

fi


# Check whether --enable-zerocopy was given.
if test ${enable_zerocopy+y}
then :
  enableval=$enable_zerocopy; :
else $as_nop
  enable_zerocopy=yes
fi

if test "x$enable_zerocopy" = xyes; then
    printf "%s\n" "#define HAVE_ZEROCOPY 1" >>confdefs.h

fi

# Check whether --enable-clone was given.
if test ${enable_clone+y}
then :
  enableval=$enable_clone; printf "%s\n" "#define CLICK_NOINDIRECT 1" >>confdefs.h

else $as_nop
  :
fi


# Check whether --enable-rsspp was given.
if test ${enable_rsspp+y}
then :
  enableval=$enable_rsspp; :
else $as_nop
  enable_rsspp=yes
fi



# Check whether --enable-linuxmodule was given.
if test ${enable_linuxmodule+y}
then :
  enableval=$enable_linuxmodule; :
else $as_nop
  enable_linuxmodule=no; enable_linuxmodule_default=no
fi


# Check whether --enable-fixincludes was given.
if test ${enable_fixincludes+y}
then :
  enableval=$enable_fixincludes; :
else $as_nop
  enable_fixincludes=yes
fi

LINUXMODULE_FIXINCLUDES=
if test "$enable_fixincludes" = yes; then
    LINUXMODULE_FIXINCLUDES=1
fi


# Check whether --enable-multithread was given.
if test ${enable_multithread+y}
then :
  enableval=$enable_multithread; :
else $as_nop
  enable_multithread=no
fi


if test "$enable_multithread" != no -a "$enable_multithread" != 1; then
    printf "%s\n" "#define __MTCLICK__ 1" >>confdefs.h

    printf "%s\n" "#define HAVE_LINUXMODULE_MULTITHREAD 1" >>confdefs.h

    saveflags="$CPPFLAGS"
    CPPFLAGS="$saveflags -D__MTCLICK__"
else
    enable_multithread=no
fi

# Check whether --enable-warp9 was given.
if test ${enable_warp9+y}
then :
  enableval=$enable_warp9; :
else $as_nop
  enable_warp9=no
fi

if test "x$enable_warp9" = xyes; then
    printf "%s\n" "#define CLICK_WARP9 1" >>confdefs.h

fi

printf "%s\n" "#define HAVE_CLICKFS 1" >>confdefs.h


# Check whether --enable-kassert was given.
if test ${enable_kassert+y}
then :
  enableval=$enable_kassert; :
else $as_nop
  enable_kassert=no
fi

if test $enable_kassert = yes; then
    printf "%s\n" "#define HAVE_KERNEL_ASSERT 1" >>confdefs.h

fi

# Check whether --enable-adaptive was given.
if test ${enable_adaptive+y}
then :
  enableval=$enable_adaptive; :
else $as_nop
  enable_adaptive=no
fi

if test "x$enable_adaptive" = xyes; then
    printf "%s\n" "#define HAVE_ADAPTIVE_SCHEDULER 1" >>confdefs.h

fi

# Check whether --enable-linux-symbols was given.
if test ${enable_linux_symbols+y}
then :
  enableval=$enable_linux_symbols; :
else $as_nop
  enable_linux_symbols=yes
fi

INCLUDE_KSYMS=no
if test "x$enable_linux_symbols" = xyes; then
    INCLUDE_KSYMS=yes
fi




# Check whether --enable-bsdmodule was given.
if test ${enable_bsdmodule+y}
then :
  enableval=$enable_bsdmodule; :
else $as_nop
  enable_bsdmodule=no
fi


# Check whether --enable-netisr was given.
if test ${enable_netisr+y}
then :
  enableval=$enable_netisr; :
else $as_nop
  enable_netisr=yes
fi

if test $enable_netisr = yes; then
    printf "%s\n" "#define BSD_NETISRSCHED 1" >>confdefs.h

fi



# Check whether --enable-nsclick was given.
if test ${enable_nsclick+y}
then :
  enableval=$enable_nsclick; :
else $as_nop
  enable_nsclick=no
fi




# Check whether --enable-minios was given.
if test ${enable_minios+y}
then :
  enableval=$enable_minios; :
else $as_nop
  enable_minios=no
fi



# Check whether --with-xen was given.
if test ${with_xen+y}
then :
  withval=$with_xen; xenpath=$withval
else $as_nop
  xenpath=NONE
fi


# Check whether --with-minios was given.
if test ${with_minios+y}
then :
  withval=$with_minios; miniospath=$withval
else $as_nop
  miniospath=NONE
fi


# Check whether --with-newlib was given.
if test ${with_newlib+y}
then :
  withval=$with_newlib; newlibpath=$withval
else $as_nop
  newlibpath=NONE
fi


# Check whether --with-lwip was given.
if test ${with_lwip+y}
then :
  withval=$with_lwip; lwippath=$withval
else $as_nop
  lwippath=NONE
fi


if test "$enable_minios" = yes; then
    if test "$xenpath" = NONE; then
        xenpath="../xen"
    fi
    if test "$miniospath" = NONE; then
        miniospath="../mini-os"
    fi
    if test "$newlibpath" = NONE; then
        newlibpath="../toolchain/x86_64-root/x86_64-xen-elf"
    fi
    if test "$lwippath" = NONE; then
        lwippath="../toolchain/x86_64-root/x86_64-xen-elf"
    fi

    xenpath="`readlink -f $xenpath`"
    if test ! -d "$xenpath"; then
        as_fn_error $? "
=========================================

Can't find $xenpath, so I can't compile the minios driver!
(You may need the --with-xen=DIR option.)

=========================================" "$LINENO" 5
    fi
    miniospath="`readlink -f $miniospath`"
    if test ! -d "$miniospath"; then
        as_fn_error $? "
=========================================

Can't find $miniospath, so I can't compile the minios driver!
(You may need the --with-minios=DIR option.)

=========================================" "$LINENO" 5
    fi
    newlibpath="`readlink -f $newlibpath`"
    if test ! -d "$newlibpath"; then
        as_fn_error $? "
=========================================

Can't find $newlibpath, so I can't compile the minios driver!
(You may need the --with-newlib=DIR option.)

=========================================" "$LINENO" 5
    fi
    lwippath="`readlink -f $lwippath`"
    if test ! -d "$lwippath"; then
        as_fn_error $? "
=========================================

Can't find $lwippath, so I can't compile the minios driver!
(You may need the --with-lwip=DIR option.)

=========================================" "$LINENO" 5
    fi

    xen_dir=$xenpath

    minios_dir=$miniospath

    newlib_dir=$newlibpath

    lwip_dir=$lwippath

fi




# Check whether --with-linux was given.
if test ${with_linux+y}
then :
  withval=$with_linux; linuxpath=$withval
else $as_nop
  linuxpath=NONE
fi

test -z "$linuxpath" -o "$linuxpath" = yes && linuxpath=yes


# Check whether --with-linux-map was given.
if test ${with_linux_map+y}
then :
  withval=$with_linux_map; linux_system_map=$withval; if test -z "$withval" -o "$withval" = yes; then linux_system_map=NONE; fi
else $as_nop
  linux_system_map=NONE
fi


linux_system_map_boot=no

if test "x$linuxpath" = xNONE -o "x$linuxpath" = xyes; then
    if uname -r 2>/dev/null | grep '^\(2\.6\|3\.\)' >/dev/null 2>&1; then
        linuxpath=/lib/modules/"`uname -r`"/build
        linux_system_map_boot="`uname -r`"
    else
        linuxpath=/usr/src/linux
    fi
    if test ! -d "$linuxpath" -a "x$enable_linuxmodule" = xyes; then
        if test "x$enable_linuxmodule_default" = xyes; then
            linuxpath=NONE; enable_linuxmodule=no
        else
            as_fn_error $? "
=========================================

Can't find $linuxpath, so I can't compile the linuxmodule driver!
(You may need the --with-linux=DIR option.)

=========================================" "$LINENO" 5
        fi
    fi
fi

find_linuxpath () {
    path="$linuxpath"
    while test -n "$path"; do
        l=`echo "$path" | sed 's/^\([^:]*\).*/\1/'`
        path=`echo "$path" | sed 's/^[^:]*:*//'`
        if test -n "$l" -a -f "$l/$1"; then
            echo "$l/$1"
            return
        fi
    done
    echo "/nonexistent_file"
}

if test "x$linuxpath" = xNONE -o "x$linuxpath" = xno -o "x$enable_linuxmodule" != xyes; then
    ac_have_linux_kernel=n
    linuxpath=NONE
    linux_srcdir=NONE
    linux_builddir=NONE
else
        path="$linuxpath"
    while test -n "$path"; do
        l=`echo "$path" | sed 's/^\([^:]*\).*/\1/'`
        path=`echo "$path" | sed 's/^[^>]*:*//'`
        if test -n "$l" && expr "_$l" : '_[^/\\]' >/dev/null; then
            as_fn_error $? "
=========================================

The --with-linux directory $l is relative.
All Linux directories must be absolute paths starting with /.

=========================================" "$LINENO" 5
        fi
    done

    linux_skbuff_h=`find_linuxpath include/linux/skbuff.h`
    if test -r "$linux_skbuff_h"; then
        linux_srcdir=`echo "$linux_skbuff_h" | sed 's_include/linux/skbuff\.h__'`
        ac_have_linux_kernel=y
    else
        as_fn_error $? "
=========================================

Can't find include/linux/skbuff.h in $linuxpath.
Are you sure $linuxpath contains Linux kernel source?

=========================================" "$LINENO" 5
            fi

    linux_config=`find_linuxpath .config`
    if test -r "$linux_config"; then
        linux_builddir=`echo "$linux_config" | sed 's_/\.config__'`
    else
        as_fn_error $? "
=========================================

Can't find .config in $linuxpath.
Are you sure $linuxpath contains a Linux kernel build?

=========================================" "$LINENO" 5
            fi
fi



printf "%s\n" "#define LINUX_SRCDIR \"${linux_srcdir}\"" >>confdefs.h





# Check whether --enable-all-elements was given.
if test ${enable_all_elements+y}
then :
  enableval=$enable_all_elements;
fi


element_groups=""



# Check whether --enable-analysis was given.
if test ${enable_analysis+y}
then :
  enableval=$enable_analysis;
else $as_nop
  enable_analysis=yes
fi
test "x$enable_all_elements" = xyes -a \( "x$enable_analysis" = xNO -o "x$enable_analysis" = x \) && enable_analysis=yes
if test "x$enable_analysis" = xyes; then
    :

fi
# Check whether --enable-app was given.
if test ${enable_app+y}
then :
  enableval=$enable_app;
else $as_nop
  enable_app=yes
fi
test "x$enable_all_elements" = xyes -a \( "x$enable_app" = xNO -o "x$enable_app" = x \) && enable_app=yes
if test "x$enable_app" = xyes; then
    :

fi
# Check whether --enable-aqm was given.
if test ${enable_aqm+y}
then :
  enableval=$enable_aqm;
else $as_nop
  enable_aqm=yes
fi
test "x$enable_all_elements" = xyes -a \( "x$enable_aqm" = xNO -o "x$enable_aqm" = x \) && enable_aqm=yes
if test "x$enable_aqm" = xyes; then
    :

fi
# Check whether --enable-ethernet was given.
if test ${enable_ethernet+y}
then :
  enableval=$enable_ethernet;
else $as_nop
  enable_ethernet=yes
fi
test "x$enable_all_elements" = xyes -a \( "x$enable_ethernet" = xNO -o "x$enable_ethernet" = x \) && enable_ethernet=yes
if test "x$enable_ethernet" = xyes; then
    :

fi
# Check whether --enable-etherswitch was given.
if test ${enable_etherswitch+y}
then :
  enableval=$enable_etherswitch;
else $as_nop
  enable_etherswitch=NO
fi
test "x$enable_all_elements" = xyes -a \( "x$enable_etherswitch" = xNO -o "x$enable_etherswitch" = x \) && enable_etherswitch=yes
if test "x$enable_etherswitch" = xyes; then
    :

fi
# Check whether --enable-flow was given.
if test ${enable_flow+y}
then :
  enableval=$enable_flow;
else $as_nop
  enable_flow=NO
fi
test "x$enable_all_elements" = xyes -a \( "x$enable_flow" = xNO -o "x$enable_flow" = x \) -a "x$enable_batch" = xyes   && enable_flow=yes
if test "x$enable_flow" = xyes; then
    :
    enable_flow=yes
fi
# Check whether --enable-ctx was given.
if test ${enable_ctx+y}
then :
  enableval=$enable_ctx;
else $as_nop
  enable_ctx=NO
fi
test "x$enable_all_elements" = xyes -a \( "x$enable_ctx" = xNO -o "x$enable_ctx" = x \) -a "x$enable_flow" = xyes   && enable_ctx=yes
if test "x$enable_ctx" = xyes; then
    :
    enable_ctx=yes
fi
# Check whether --enable-grid was given.
if test ${enable_grid+y}
then :
  enableval=$enable_grid;
else $as_nop
  enable_grid=NO
fi
test "x$enable_all_elements" = xyes -a \( "x$enable_grid" = xNO -o "x$enable_grid" = x \) && enable_grid=yes
if test "x$enable_grid" = xyes; then
    :

fi
# Check whether --enable-icmp was given.
if test ${enable_icmp+y}
then :
  enableval=$enable_icmp;
else $as_nop
  enable_icmp=yes
fi
test "x$enable_all_elements" = xyes -a \( "x$enable_icmp" = xNO -o "x$enable_icmp" = x \) && enable_icmp=yes
if test "x$enable_icmp" = xyes; then
    :

fi
# Check whether --enable-ip was given.
if test ${enable_ip+y}
then :
  enableval=$enable_ip;
else $as_nop
  enable_ip=yes
fi
test "x$enable_all_elements" = xyes -a \( "x$enable_ip" = xNO -o "x$enable_ip" = x \) && enable_ip=yes
if test "x$enable_ip" = xyes; then
    :

fi
# Check whether --enable-ip6 was given.
if test ${enable_ip6+y}
then :
  enableval=$enable_ip6;
else $as_nop
  enable_ip6=NO
fi
test "x$enable_all_elements" = xyes -a \( "x$enable_ip6" = xNO -o "x$enable_ip6" = x \) && enable_ip6=yes
if test "x$enable_ip6" = xyes; then
    :
    printf "%s\n" "#define HAVE_IP6 1" >>confdefs.h

fi
# Check whether --enable-ipsec was given.
if test ${enable_ipsec+y}
then :
  enableval=$enable_ipsec;
else $as_nop
  enable_ipsec=NO
fi
test "x$enable_all_elements" = xyes -a \( "x$enable_ipsec" = xNO -o "x$enable_ipsec" = x \) && enable_ipsec=yes
if test "x$enable_ipsec" = xyes; then
    :
    printf "%s\n" "#define HAVE_IPSEC 1" >>confdefs.h

fi
# Check whether --enable-local was given.
if test ${enable_local+y}
then :
  enableval=$enable_local;
else $as_nop
  enable_local=NO
fi
test "x$enable_all_elements" = xyes -a \( "x$enable_local" = xNO -o "x$enable_local" = x \) && enable_local=yes
if test "x$enable_local" = xyes; then
    :

fi
# Check whether --enable-radio was given.
if test ${enable_radio+y}
then :
  enableval=$enable_radio;
else $as_nop
  enable_radio=NO
fi
test "x$enable_all_elements" = xyes -a \( "x$enable_radio" = xNO -o "x$enable_radio" = x \) && enable_radio=yes
if test "x$enable_radio" = xyes; then
    :

fi
# Check whether --enable-research was given.
if test ${enable_research+y}
then :
  enableval=$enable_research;
else $as_nop
  enable_research=NO
fi
test "x$enable_all_elements" = xyes -a \( "x$enable_research" = xNO -o "x$enable_research" = x \) && enable_research=yes
if test "x$enable_research" = xyes; then
    :

fi
# Check whether --enable-simple was given.
if test ${enable_simple+y}
then :
  enableval=$enable_simple;
else $as_nop
  enable_simple=yes
fi
test "x$enable_all_elements" = xyes -a \( "x$enable_simple" = xNO -o "x$enable_simple" = x \) && enable_simple=yes
if test "x$enable_simple" = xyes; then
    :

fi
# Check whether --enable-standard was given.
if test ${enable_standard+y}
then :
  enableval=$enable_standard;
else $as_nop
  enable_standard=yes
fi
test "x$enable_all_elements" = xyes -a \( "x$enable_standard" = xNO -o "x$enable_standard" = x \) && enable_standard=yes
if test "x$enable_standard" = xyes; then
    :

fi
# Check whether --enable-tcpudp was given.
if test ${enable_tcpudp+y}
then :
  enableval=$enable_tcpudp;
else $as_nop
  enable_tcpudp=yes
fi
test "x$enable_all_elements" = xyes -a \( "x$enable_tcpudp" = xNO -o "x$enable_tcpudp" = x \) && enable_tcpudp=yes
if test "x$enable_tcpudp" = xyes; then
    :

fi
# Check whether --enable-test was given.
if test ${enable_test+y}
then :
  enableval=$enable_test;
else $as_nop
  enable_test=yes
fi
test "x$enable_all_elements" = xyes -a \( "x$enable_test" = xNO -o "x$enable_test" = x \) && enable_test=yes
if test "x$enable_test" = xyes; then
    :

fi
# Check whether --enable-threads was given.
if test ${enable_threads+y}
then :
  enableval=$enable_threads;
else $as_nop
  enable_threads=yes
fi
test "x$enable_all_elements" = xyes -a \( "x$enable_threads" = xNO -o "x$enable_threads" = x \) && enable_threads=yes
if test "x$enable_threads" = xyes; then
    :

fi
# Check whether --enable-tunnel was given.
if test ${enable_tunnel+y}
then :
  enableval=$enable_tunnel;
else $as_nop
  enable_tunnel=NO
fi
test "x$enable_all_elements" = xyes -a \( "x$enable_tunnel" = xNO -o "x$enable_tunnel" = x \) && enable_tunnel=yes
if test "x$enable_tunnel" = xyes; then
    :

fi
# Check whether --enable-wifi was given.
if test ${enable_wifi+y}
then :
  enableval=$enable_wifi;
else $as_nop
  enable_wifi=NO
fi
test "x$enable_all_elements" = xyes -a \( "x$enable_wifi" = xNO -o "x$enable_wifi" = x \) && enable_wifi=yes
if test "x$enable_wifi" = xyes; then
    :

fi
# Check whether --enable-experimental was given.
if test ${enable_experimental+y}
then :
  enableval=$enable_experimental; :
else $as_nop
  enable_experimental=no
fi

# Check whether --enable-skip-elements was given.
if test ${enable_skip_elements+y}
then :
  enableval=$enable_skip_elements; :
else $as_nop
  enable_skip_elements=no
fi


all_element_groups=
for i in `(cd $srcdir/elements; ls | sed '/^CVS$/d;/^\.git/d;/^bsdmodule$/d;/^linuxmodule$/d;/^ns$/d;/^userlevel$/d;/^minios$/d')`; do
    enableval=`eval 'echo $'"enable_$i"`
    test "x$enable_all_elements" = xyes -a "x$enableval" '=' xyes && enableval=yes
    test -d "$srcdir/elements/$i" -a "$enableval" = "yes" && element_groups="$element_groups $i"
    test -d "$srcdir/elements/$i" && all_element_groups="$all_element_groups$i "
done


FINDELEMFLAGS=
if test "x$enable_skip_elements" != xno -a "x$enable_skip_elements" != xyes; then
    FINDELEMFLAGS="-x '$enable_skip_elements'"
fi





# Check whether --with-freebsd was given.
if test ${with_freebsd+y}
then :
  withval=$with_freebsd; freebsddir=$withval; if test -z "$withval" -o "$withval" = yes; then freebsddir=/usr/src/sys,/usr/include; fi
else $as_nop
  freebsddir=NONE
fi


if test "x$freebsddir" = xNONE; then
  if test -d /usr/src/sys -a -d /usr/include; then
    freebsddir=/usr/src/sys,/usr/include
  elif test "x$enable_bsdmodule" = xyes; then
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING:
=========================================

Can't find /usr/src/sys and/or /usr/include, so I'm not compiling
the bsdmodule driver.  (You may need the --with-freebsd=DIR option.)

=========================================" >&5
printf "%s\n" "$as_me: WARNING:
=========================================

Can't find /usr/src/sys and/or /usr/include, so I'm not compiling
the bsdmodule driver.  (You may need the --with-freebsd=DIR option.)

=========================================" >&2;}
  fi
fi

freebsd_srcdir=`echo "$freebsddir," | sed -e 's/,.*//'`
freebsd_includedir=`echo "$freebsddir,/usr/include," | sed -e 's/^[^,]*,\([^,]*\),.*$/\1/'`

if test "x$freebsddir" = xNONE -o "x$freebsddir" = xno -o "x$enable_bsdmodule" != xyes; then
  ac_have_bsd_kernel=n
  freebsddir=NONE
elif expr '(' "_$freebsd_includedir" : '_[^/\\]' ')' '|' '(' "_$freebsd_srcdir" : '_[^/\\]' ')'; then
  as_fn_error $? "
=========================================

The --with-freebsd directories $freebsd_srcdir,$freebsd_includedir
are relative.  You must supply absolute paths starting with /.

=========================================" "$LINENO" 5
elif test -r $freebsd_includedir/net/if_var.h -a -r $freebsd_srcdir/kern/vnode_if.src; then
  ac_have_bsd_kernel=y
else
  as_fn_error $? "
=========================================

Can't find $freebsd_includedir/net/if_var.h and/or
$freebsd_srcdir/kern/vnode_if.src.  Are you sure $freebsd_srcdir
and $freebsd_includedir contain FreeBSD kernel source?

=========================================" "$LINENO" 5
  fi



printf "%s\n" "#define FREEBSD_INCLUDEDIR \"${freebsd_includedir}\"" >>confdefs.h




{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether we are compiling for Linux" >&5
printf %s "checking whether we are compiling for Linux... " >&6; }
if test ${ac_cv_under_linux+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main (void)
{
#ifndef __linux__
#error "fuckers! fuckers!"
#endif
return 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_under_linux=yes
else $as_nop
  ac_cv_under_linux=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_under_linux" >&5
printf "%s\n" "$ac_cv_under_linux" >&6; }



ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_fn_c_check_func "$LINENO" "strerror" "ac_cv_func_strerror"
if test "x$ac_cv_func_strerror" = xyes
then :
  printf "%s\n" "#define HAVE_STRERROR 1" >>confdefs.h

else $as_nop
  case " $LIBOBJS " in
  *" strerror.$ac_objext "* ) ;;
  *) LIBOBJS="$LIBOBJS strerror.$ac_objext"
 ;;
esac

fi

ac_fn_c_check_func "$LINENO" "random" "ac_cv_func_random"
if test "x$ac_cv_func_random" = xyes
then :
  printf "%s\n" "#define HAVE_RANDOM 1" >>confdefs.h

fi
ac_fn_c_check_func "$LINENO" "snprintf" "ac_cv_func_snprintf"
if test "x$ac_cv_func_snprintf" = xyes
then :
  printf "%s\n" "#define HAVE_SNPRINTF 1" >>confdefs.h

fi
ac_fn_c_check_func "$LINENO" "strnlen" "ac_cv_func_strnlen"
if test "x$ac_cv_func_strnlen" = xyes
then :
  printf "%s\n" "#define HAVE_STRNLEN 1" >>confdefs.h

fi
ac_fn_c_check_func "$LINENO" "strtof" "ac_cv_func_strtof"
if test "x$ac_cv_func_strtof" = xyes
then :
  printf "%s\n" "#define HAVE_STRTOF 1" >>confdefs.h

fi
ac_fn_c_check_func "$LINENO" "strtold" "ac_cv_func_strtold"
if test "x$ac_cv_func_strtold" = xyes
then :
  printf "%s\n" "#define HAVE_STRTOLD 1" >>confdefs.h

fi
ac_fn_c_check_func "$LINENO" "strtoul" "ac_cv_func_strtoul"
if test "x$ac_cv_func_strtoul" = xyes
then :
  printf "%s\n" "#define HAVE_STRTOUL 1" >>confdefs.h

fi
ac_fn_c_check_func "$LINENO" "tcgetpgrp" "ac_cv_func_tcgetpgrp"
if test "x$ac_cv_func_tcgetpgrp" = xyes
then :
  printf "%s\n" "#define HAVE_TCGETPGRP 1" >>confdefs.h

fi
ac_fn_c_check_func "$LINENO" "vsnprintf" "ac_cv_func_vsnprintf"
if test "x$ac_cv_func_vsnprintf" = xyes
then :
  printf "%s\n" "#define HAVE_VSNPRINTF 1" >>confdefs.h

fi
ac_fn_c_check_func "$LINENO" "aligned_alloc" "ac_cv_func_aligned_alloc"
if test "x$ac_cv_func_aligned_alloc" = xyes
then :
  printf "%s\n" "#define HAVE_ALIGNED_ALLOC 1" >>confdefs.h

fi

ac_ext=cpp
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu




# Check whether --enable-smaller-code was given.
if test ${enable_smaller_code+y}
then :
  enableval=$enable_smaller_code; :
else $as_nop
  enable_smaller_code=no
fi

if test "x$enable_smaller_code" = xyes; then

printf "%s\n" "#define CLICK_OPTIMIZE_SIZE 1" >>confdefs.h

fi

# Check whether --enable-int64 was given.
if test ${enable_int64+y}
then :
  enableval=$enable_int64; :
else $as_nop
  enable_int64=yes
fi


# The cast to long int works around a bug in the HP C Compiler
# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
# This bug is HP SR number 8606223364.
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking size of int" >&5
printf %s "checking size of int... " >&6; }
if test ${ac_cv_sizeof_int+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if ac_fn_cxx_compute_int "$LINENO" "(long int) (sizeof (int))" "ac_cv_sizeof_int"        "$ac_includes_default"
then :

else $as_nop
  if test "$ac_cv_type_int" = yes; then
     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error 77 "cannot compute sizeof (int)
See \`config.log' for more details" "$LINENO" 5; }
   else
     ac_cv_sizeof_int=0
   fi
fi

fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_int" >&5
printf "%s\n" "$ac_cv_sizeof_int" >&6; }



printf "%s\n" "#define SIZEOF_INT $ac_cv_sizeof_int" >>confdefs.h


# The cast to long int works around a bug in the HP C Compiler
# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
# This bug is HP SR number 8606223364.
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking size of long" >&5
printf %s "checking size of long... " >&6; }
if test ${ac_cv_sizeof_long+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if ac_fn_cxx_compute_int "$LINENO" "(long int) (sizeof (long))" "ac_cv_sizeof_long"        "$ac_includes_default"
then :

else $as_nop
  if test "$ac_cv_type_long" = yes; then
     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error 77 "cannot compute sizeof (long)
See \`config.log' for more details" "$LINENO" 5; }
   else
     ac_cv_sizeof_long=0
   fi
fi

fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_long" >&5
printf "%s\n" "$ac_cv_sizeof_long" >&6; }



printf "%s\n" "#define SIZEOF_LONG $ac_cv_sizeof_long" >>confdefs.h


# The cast to long int works around a bug in the HP C Compiler
# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
# This bug is HP SR number 8606223364.
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking size of size_t" >&5
printf %s "checking size of size_t... " >&6; }
if test ${ac_cv_sizeof_size_t+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if ac_fn_cxx_compute_int "$LINENO" "(long int) (sizeof (size_t))" "ac_cv_sizeof_size_t"        "$ac_includes_default"
then :

else $as_nop
  if test "$ac_cv_type_size_t" = yes; then
     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error 77 "cannot compute sizeof (size_t)
See \`config.log' for more details" "$LINENO" 5; }
   else
     ac_cv_sizeof_size_t=0
   fi
fi

fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_size_t" >&5
printf "%s\n" "$ac_cv_sizeof_size_t" >&6; }



printf "%s\n" "#define SIZEOF_SIZE_T $ac_cv_sizeof_size_t" >>confdefs.h


# The cast to long int works around a bug in the HP C Compiler
# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
# This bug is HP SR number 8606223364.
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking size of ptrdiff_t" >&5
printf %s "checking size of ptrdiff_t... " >&6; }
if test ${ac_cv_sizeof_ptrdiff_t+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if ac_fn_cxx_compute_int "$LINENO" "(long int) (sizeof (ptrdiff_t))" "ac_cv_sizeof_ptrdiff_t"        "$ac_includes_default"
then :

else $as_nop
  if test "$ac_cv_type_ptrdiff_t" = yes; then
     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error 77 "cannot compute sizeof (ptrdiff_t)
See \`config.log' for more details" "$LINENO" 5; }
   else
     ac_cv_sizeof_ptrdiff_t=0
   fi
fi

fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_ptrdiff_t" >&5
printf "%s\n" "$ac_cv_sizeof_ptrdiff_t" >&6; }



printf "%s\n" "#define SIZEOF_PTRDIFF_T $ac_cv_sizeof_ptrdiff_t" >>confdefs.h


# The cast to long int works around a bug in the HP C Compiler
# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
# This bug is HP SR number 8606223364.
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking size of void *" >&5
printf %s "checking size of void *... " >&6; }
if test ${ac_cv_sizeof_void_p+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if ac_fn_cxx_compute_int "$LINENO" "(long int) (sizeof (void *))" "ac_cv_sizeof_void_p"        "$ac_includes_default"
then :

else $as_nop
  if test "$ac_cv_type_void_p" = yes; then
     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error 77 "cannot compute sizeof (void *)
See \`config.log' for more details" "$LINENO" 5; }
   else
     ac_cv_sizeof_void_p=0
   fi
fi

fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_void_p" >&5
printf "%s\n" "$ac_cv_sizeof_void_p" >&6; }



printf "%s\n" "#define SIZEOF_VOID_P $ac_cv_sizeof_void_p" >>confdefs.h



{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
printf %s "checking for grep that handles long lines and -e... " >&6; }
if test ${ac_cv_path_GREP+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test -z "$GREP"; then
  ac_path_GREP_found=false
  # Loop through the user's path and test for each of PROGNAME-LIST
  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_prog in grep ggrep
   do
    for ac_exec_ext in '' $ac_executable_extensions; do
      ac_path_GREP="$as_dir$ac_prog$ac_exec_ext"
      as_fn_executable_p "$ac_path_GREP" || continue
# Check for GNU ac_path_GREP and select it if it is found.
  # Check for GNU $ac_path_GREP
case `"$ac_path_GREP" --version 2>&1` in
*GNU*)
  ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
*)
  ac_count=0
  printf %s 0123456789 >"conftest.in"
  while :
  do
    cat "conftest.in" "conftest.in" >"conftest.tmp"
    mv "conftest.tmp" "conftest.in"
    cp "conftest.in" "conftest.nl"
    printf "%s\n" 'GREP' >> "conftest.nl"
    "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
    as_fn_arith $ac_count + 1 && ac_count=$as_val
    if test $ac_count -gt ${ac_path_GREP_max-0}; then
      # Best one so far, save it but keep looking for a better one
      ac_cv_path_GREP="$ac_path_GREP"
      ac_path_GREP_max=$ac_count
    fi
    # 10*(2^10) chars as input seems more than enough
    test $ac_count -gt 10 && break
  done
  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
esac

      $ac_path_GREP_found && break 3
    done
  done
  done
IFS=$as_save_IFS
  if test -z "$ac_cv_path_GREP"; then
    as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
  fi
else
  ac_cv_path_GREP=$GREP
fi

fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
printf "%s\n" "$ac_cv_path_GREP" >&6; }
 GREP="$ac_cv_path_GREP"


{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
printf %s "checking for egrep... " >&6; }
if test ${ac_cv_path_EGREP+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
   then ac_cv_path_EGREP="$GREP -E"
   else
     if test -z "$EGREP"; then
  ac_path_EGREP_found=false
  # Loop through the user's path and test for each of PROGNAME-LIST
  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_prog in egrep
   do
    for ac_exec_ext in '' $ac_executable_extensions; do
      ac_path_EGREP="$as_dir$ac_prog$ac_exec_ext"
      as_fn_executable_p "$ac_path_EGREP" || continue
# Check for GNU ac_path_EGREP and select it if it is found.
  # Check for GNU $ac_path_EGREP
case `"$ac_path_EGREP" --version 2>&1` in
*GNU*)
  ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
*)
  ac_count=0
  printf %s 0123456789 >"conftest.in"
  while :
  do
    cat "conftest.in" "conftest.in" >"conftest.tmp"
    mv "conftest.tmp" "conftest.in"
    cp "conftest.in" "conftest.nl"
    printf "%s\n" 'EGREP' >> "conftest.nl"
    "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
    as_fn_arith $ac_count + 1 && ac_count=$as_val
    if test $ac_count -gt ${ac_path_EGREP_max-0}; then
      # Best one so far, save it but keep looking for a better one
      ac_cv_path_EGREP="$ac_path_EGREP"
      ac_path_EGREP_max=$ac_count
    fi
    # 10*(2^10) chars as input seems more than enough
    test $ac_count -gt 10 && break
  done
  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
esac

      $ac_path_EGREP_found && break 3
    done
  done
  done
IFS=$as_save_IFS
  if test -z "$ac_cv_path_EGREP"; then
    as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
  fi
else
  ac_cv_path_EGREP=$EGREP
fi

   fi
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
printf "%s\n" "$ac_cv_path_EGREP" >&6; }
 EGREP="$ac_cv_path_EGREP"



    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether char is unsigned" >&5
printf %s "checking whether char is unsigned... " >&6; }
if test ${ac_cv_c_char_unsigned+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$ac_includes_default
int
main (void)
{
static int test_array [1 - 2 * !(((char) -1) < 0)];
test_array [0] = 0;
return test_array [0];

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_c_char_unsigned=no
else $as_nop
  ac_cv_c_char_unsigned=yes
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_char_unsigned" >&5
printf "%s\n" "$ac_cv_c_char_unsigned" >&6; }
if test $ac_cv_c_char_unsigned = yes; then
  printf "%s\n" "#define __CHAR_UNSIGNED__ 1" >>confdefs.h

fi



    if test x$ac_cv_header_inttypes_h = xno; then
        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for uintXX_t typedefs" >&5
printf %s "checking for uintXX_t typedefs... " >&6; }
if test ${ac_cv_uint_t+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <sys/types.h>

_ACEOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
  $EGREP "(^|[^a-zA-Z_0-9])uint32_t[^a-zA-Z_0-9]" >/dev/null 2>&1
then :
  ac_cv_uint_t=yes
else $as_nop
  ac_cv_uint_t=no
fi
rm -rf conftest*

fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_uint_t" >&5
printf "%s\n" "$ac_cv_uint_t" >&6; }
    fi
    if test x$ac_cv_header_inttypes_h = xno -a "$ac_cv_uint_t" = no; then
        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for u_intXX_t typedefs" >&5
printf %s "checking for u_intXX_t typedefs... " >&6; }
if test ${ac_cv_u_int_t+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <sys/types.h>

_ACEOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
  $EGREP "(^|[^a-zA-Z_0-9])u_int32_t[^a-zA-Z_0-9]" >/dev/null 2>&1
then :
  ac_cv_u_int_t=yes
else $as_nop
  ac_cv_u_int_t=no
fi
rm -rf conftest*

fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_u_int_t" >&5
printf "%s\n" "$ac_cv_u_int_t" >&6; }
    fi
    if test x$ac_cv_header_inttypes_h = xyes -o "$ac_cv_uint_t" = yes; then :
    elif test "$ac_cv_u_int_t" = yes; then

printf "%s\n" "#define HAVE_U_INT_TYPES 1" >>confdefs.h

    else
        as_fn_error $? "
=========================================

Neither uint32_t nor u_int32_t defined by <inttypes.h> or <sys/types.h>!

=========================================" "$LINENO" 5
    fi


    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether machine is indifferent to alignment" >&5
printf %s "checking whether machine is indifferent to alignment... " >&6; }
if test ${ac_cv_alignment_indifferent+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test "x$ac_cv_header_inttypes_h" = xyes; then inttypes_hdr='inttypes.h'; else inttypes_hdr='sys/types.h'; fi

    if test "$cross_compiling" = yes
then :
  ac_cv_alignment_indifferent=no
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <$inttypes_hdr>
#include <stdlib.h>
void get_value(char *buf, int offset, int32_t *value) {
    int i;
    for (i = 0; i < 4; i++)
        buf[i + offset] = i;
    *value = *((int32_t *)(buf + offset));
}
int main(int argc, char *argv[]) {
    char buf[12];
    int i;
    int32_t value, try_value;
    get_value(buf, 0, &value);
    for (i = 1; i < 4; i++) {
        get_value(buf, i, &try_value);
        if (value != try_value)
            exit(1);
    }
    exit(0);
}
_ACEOF
if ac_fn_cxx_try_run "$LINENO"
then :
  ac_cv_alignment_indifferent=yes
else $as_nop
  ac_cv_alignment_indifferent=no
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
  conftest.$ac_objext conftest.beam conftest.$ac_ext
fi

fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_alignment_indifferent" >&5
printf "%s\n" "$ac_cv_alignment_indifferent" >&6; }
    if test "x$ac_cv_alignment_indifferent" = xyes; then

printf "%s\n" "#define HAVE_INDIFFERENT_ALIGNMENT 1" >>confdefs.h

    fi
if test "x$enable_int64" = xyes; then
    # The cast to long int works around a bug in the HP C Compiler
# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
# This bug is HP SR number 8606223364.
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking size of long long" >&5
printf %s "checking size of long long... " >&6; }
if test ${ac_cv_sizeof_long_long+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if ac_fn_cxx_compute_int "$LINENO" "(long int) (sizeof (long long))" "ac_cv_sizeof_long_long"        "$ac_includes_default"
then :

else $as_nop
  if test "$ac_cv_type_long_long" = yes; then
     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error 77 "cannot compute sizeof (long long)
See \`config.log' for more details" "$LINENO" 5; }
   else
     ac_cv_sizeof_long_long=0
   fi
fi

fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_long_long" >&5
printf "%s\n" "$ac_cv_sizeof_long_long" >&6; }



printf "%s\n" "#define SIZEOF_LONG_LONG $ac_cv_sizeof_long_long" >>confdefs.h




    if test "x$ac_cv_header_inttypes_h" = xyes; then
        inttypes_hdr='inttypes.h'
    else
        inttypes_hdr='sys/types.h'
    fi

    ac_fn_cxx_check_type "$LINENO" "long long" "ac_cv_type_long_long" "$ac_includes_default"
if test "x$ac_cv_type_long_long" = xyes
then :

printf "%s\n" "#define HAVE_LONG_LONG 1" >>confdefs.h


fi

    ac_fn_cxx_check_type "$LINENO" "int64_t" "ac_cv_type_int64_t" "#include <$inttypes_hdr>
"
if test "x$ac_cv_type_int64_t" = xyes
then :

printf "%s\n" "#define HAVE_INT64_T 1" >>confdefs.h

ac_cv_int64_t=yes
else $as_nop
  ac_cv_int64_t=no
fi

    ac_fn_cxx_check_type "$LINENO" "uint64_t" "ac_cv_type_uint64_t" "#include <$inttypes_hdr>
"
if test "x$ac_cv_type_uint64_t" = xyes
then :

printf "%s\n" "#define HAVE_UINT64_T 1" >>confdefs.h

ac_cv_uint64_t=yes
else $as_nop
  ac_cv_uint64_t=no
fi


    have_int64_types=
    if test $ac_cv_int64_t = no -o $ac_cv_uint64_t = no; then
        as_fn_error $? "
=========================================

int64_t types not defined by $inttypes_hdr!
Compile with '--disable-int64'.

=========================================" "$LINENO" 5
    else

printf "%s\n" "#define HAVE_INT64_TYPES 1" >>confdefs.h

        have_int64_types=yes

        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether long and int64_t are the same type" >&5
printf %s "checking whether long and int64_t are the same type... " >&6; }
if test ${ac_cv_long_64+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  ac_ext=cpp
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

            cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <$inttypes_hdr>
void f1(long) {
}
void f1(int64_t) { // will fail if long and int64_t are the same type
}
int
main (void)
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_long_64=no
else $as_nop
  ac_cv_long_64=yes
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_long_64" >&5
printf "%s\n" "$ac_cv_long_64" >&6; }
        if test $ac_cv_long_64 = yes; then

printf "%s\n" "#define HAVE_INT64_IS_LONG_USERLEVEL 1" >>confdefs.h

        fi

        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether long long and int64_t are the same type" >&5
printf %s "checking whether long long and int64_t are the same type... " >&6; }
if test ${ac_cv_long_long_64+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  ac_ext=cpp
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

            cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <$inttypes_hdr>
void f1(long long) {
}
void f1(int64_t) { // will fail if long long and int64_t are the same type
}
int
main (void)
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_long_long_64=no
else $as_nop
  ac_cv_long_long_64=yes
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_long_long_64" >&5
printf "%s\n" "$ac_cv_long_long_64" >&6; }
        if test $ac_cv_long_long_64 = yes; then

printf "%s\n" "#define HAVE_INT64_IS_LONG_LONG_USERLEVEL 1" >>confdefs.h

        fi
    fi
fi
ac_header= ac_cache=
for ac_item in $ac_header_cxx_list
do
  if test $ac_cache; then
    ac_fn_cxx_check_header_compile "$LINENO" $ac_header ac_cv_header_$ac_cache "$ac_includes_default"
    if eval test \"x\$ac_cv_header_$ac_cache\" = xyes; then
      printf "%s\n" "#define $ac_item 1" >> confdefs.h
    fi
    ac_header= ac_cache=
  elif test $ac_header; then
    ac_cache=$ac_item
  else
    ac_header=$ac_item
  fi
done




     { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether byte ordering is bigendian" >&5
printf %s "checking whether byte ordering is bigendian... " >&6; }
if test ${ac_cv_c_bigendian+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  ac_cv_c_bigendian=unknown
    # See if we're dealing with a universal compiler.
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#ifndef __APPLE_CC__
	       not a universal capable compiler
	     #endif
	     typedef int dummy;

_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :

	# Check for potential -arch flags.  It is not universal unless
	# there are at least two -arch flags with different values.
	ac_arch=
	ac_prev=
	for ac_word in $CC $CFLAGS $CPPFLAGS $LDFLAGS; do
	 if test -n "$ac_prev"; then
	   case $ac_word in
	     i?86 | x86_64 | ppc | ppc64)
	       if test -z "$ac_arch" || test "$ac_arch" = "$ac_word"; then
		 ac_arch=$ac_word
	       else
		 ac_cv_c_bigendian=universal
		 break
	       fi
	       ;;
	   esac
	   ac_prev=
	 elif test "x$ac_word" = "x-arch"; then
	   ac_prev=arch
	 fi
       done
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
    if test $ac_cv_c_bigendian = unknown; then
      # See if sys/param.h defines the BYTE_ORDER macro.
      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <sys/types.h>
	     #include <sys/param.h>

int
main (void)
{
#if ! (defined BYTE_ORDER && defined BIG_ENDIAN \
		     && defined LITTLE_ENDIAN && BYTE_ORDER && BIG_ENDIAN \
		     && LITTLE_ENDIAN)
	      bogus endian macros
	     #endif

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  # It does; now see whether it defined to BIG_ENDIAN or not.
	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <sys/types.h>
		#include <sys/param.h>

int
main (void)
{
#if BYTE_ORDER != BIG_ENDIAN
		 not big endian
		#endif

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_c_bigendian=yes
else $as_nop
  ac_cv_c_bigendian=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
    fi
    if test $ac_cv_c_bigendian = unknown; then
      # See if <limits.h> defines _LITTLE_ENDIAN or _BIG_ENDIAN (e.g., Solaris).
      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <limits.h>

int
main (void)
{
#if ! (defined _LITTLE_ENDIAN || defined _BIG_ENDIAN)
	      bogus endian macros
	     #endif

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  # It does; now see whether it defined to _BIG_ENDIAN or not.
	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <limits.h>

int
main (void)
{
#ifndef _BIG_ENDIAN
		 not big endian
		#endif

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_c_bigendian=yes
else $as_nop
  ac_cv_c_bigendian=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
    fi
    if test $ac_cv_c_bigendian = unknown; then
      # Compile a test program.
      if test "$cross_compiling" = yes
then :
  # Try to guess by grepping values from an object file.
	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
unsigned short int ascii_mm[] =
		  { 0x4249, 0x4765, 0x6E44, 0x6961, 0x6E53, 0x7953, 0 };
		unsigned short int ascii_ii[] =
		  { 0x694C, 0x5454, 0x656C, 0x6E45, 0x6944, 0x6E61, 0 };
		int use_ascii (int i) {
		  return ascii_mm[i] + ascii_ii[i];
		}
		unsigned short int ebcdic_ii[] =
		  { 0x89D3, 0xE3E3, 0x8593, 0x95C5, 0x89C4, 0x9581, 0 };
		unsigned short int ebcdic_mm[] =
		  { 0xC2C9, 0xC785, 0x95C4, 0x8981, 0x95E2, 0xA8E2, 0 };
		int use_ebcdic (int i) {
		  return ebcdic_mm[i] + ebcdic_ii[i];
		}
		extern int foo;

int
main (void)
{
return use_ascii (foo) == use_ebcdic (foo);
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  if grep BIGenDianSyS conftest.$ac_objext >/dev/null; then
	      ac_cv_c_bigendian=yes
	    fi
	    if grep LiTTleEnDian conftest.$ac_objext >/dev/null ; then
	      if test "$ac_cv_c_bigendian" = unknown; then
		ac_cv_c_bigendian=no
	      else
		# finding both strings is unlikely to happen, but who knows?
		ac_cv_c_bigendian=unknown
	      fi
	    fi
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$ac_includes_default
int
main (void)
{

	     /* Are we little or big endian?  From Harbison&Steele.  */
	     union
	     {
	       long int l;
	       char c[sizeof (long int)];
	     } u;
	     u.l = 1;
	     return u.c[sizeof (long int) - 1] == 1;

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_run "$LINENO"
then :
  ac_cv_c_bigendian=no
else $as_nop
  ac_cv_c_bigendian=yes
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
  conftest.$ac_objext conftest.beam conftest.$ac_ext
fi

    fi
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_bigendian" >&5
printf "%s\n" "$ac_cv_c_bigendian" >&6; }
 case $ac_cv_c_bigendian in #(
   yes)
     endian=CLICK_BIG_ENDIAN;; #(
   no)
     endian=CLICK_LITTLE_ENDIAN ;; #(
   universal)
     endian=CLICK_NO_ENDIAN
     ;; #(
   *)
     endian=CLICK_NO_ENDIAN ;;
 esac


printf "%s\n" "#define CLICK_BYTE_ORDER $endian" >>confdefs.h



    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether signed right shift is arithmetic" >&5
printf %s "checking whether signed right shift is arithmetic... " >&6; }
if test ${ac_cv_arithmetic_right_shift+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
int f(int x[((int) -1) >> 15]) { return x[0]; }
int
main (void)
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_arithmetic_right_shift=no
else $as_nop
  ac_cv_arithmetic_right_shift=yes
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_arithmetic_right_shift" >&5
printf "%s\n" "$ac_cv_arithmetic_right_shift" >&6; }
    if test $ac_cv_arithmetic_right_shift = yes; then

printf "%s\n" "#define HAVE_ARITHMETIC_RIGHT_SHIFT 1" >>confdefs.h

    fi

    ac_ext=cpp
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for addressable va_list type" >&5
printf %s "checking for addressable va_list type... " >&6; }
if test ${ac_cv_va_list_addr+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <stdarg.h>
void f(va_list *) {
}
void g(va_list val) {
    f(&val);
}
void h(int a, ...) {
    va_list val;
    va_start(val, a);
    g(val);
    va_end(val);
}
int
main (void)
{
h(2, 3, 4);
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_va_list_addr=yes
else $as_nop
  ac_cv_va_list_addr=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_va_list_addr" >&5
printf "%s\n" "$ac_cv_va_list_addr" >&6; }
    if test "x$ac_cv_va_list_addr" = xyes; then

printf "%s\n" "#define HAVE_ADDRESSABLE_VA_LIST 1" >>confdefs.h

    fi


    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for __builtin_ctz" >&5
printf %s "checking for __builtin_ctz... " >&6; }
if test ${ac_cv_have___builtin_ctz+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
volatile int x = 11;
int
main (void)
{
int y = __builtin_ctz(x);
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_have___builtin_ctz=yes
else $as_nop
  ac_cv_have___builtin_ctz=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_have___builtin_ctz" >&5
printf "%s\n" "$ac_cv_have___builtin_ctz" >&6; }
    if test $ac_cv_have___builtin_ctz = yes; then

printf "%s\n" "#define HAVE___BUILTIN_CTZ 1" >>confdefs.h

    fi
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for __builtin_clz" >&5
printf %s "checking for __builtin_clz... " >&6; }
if test ${ac_cv_have___builtin_clz+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
volatile int x = 11;
int
main (void)
{
int y = __builtin_clz(x);
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_have___builtin_clz=yes
else $as_nop
  ac_cv_have___builtin_clz=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_have___builtin_clz" >&5
printf "%s\n" "$ac_cv_have___builtin_clz" >&6; }
    if test $ac_cv_have___builtin_clz = yes; then

printf "%s\n" "#define HAVE___BUILTIN_CLZ 1" >>confdefs.h

    fi
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for __builtin_clzl" >&5
printf %s "checking for __builtin_clzl... " >&6; }
if test ${ac_cv_have___builtin_clzl+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
volatile long x = 11;
int
main (void)
{
int y = __builtin_clzl(x);
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_have___builtin_clzl=yes
else $as_nop
  ac_cv_have___builtin_clzl=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_have___builtin_clzl" >&5
printf "%s\n" "$ac_cv_have___builtin_clzl" >&6; }
    if test $ac_cv_have___builtin_clzl = yes; then

printf "%s\n" "#define HAVE___BUILTIN_CLZL 1" >>confdefs.h

    fi
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for __builtin_clzll" >&5
printf %s "checking for __builtin_clzll... " >&6; }
if test ${ac_cv_have___builtin_clzll+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
volatile long long x = 11;
int
main (void)
{
int y = __builtin_clzll(x);
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_have___builtin_clzll=yes
else $as_nop
  ac_cv_have___builtin_clzll=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_have___builtin_clzll" >&5
printf "%s\n" "$ac_cv_have___builtin_clzll" >&6; }
    if test $ac_cv_have___builtin_clzll = yes; then

printf "%s\n" "#define HAVE___BUILTIN_CLZLL 1" >>confdefs.h

    fi

    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for __builtin_ffs" >&5
printf %s "checking for __builtin_ffs... " >&6; }
if test ${ac_cv_have___builtin_ffs+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
volatile int x = 11;
int
main (void)
{
int y = __builtin_ffs(x);
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_have___builtin_ffs=yes
else $as_nop
  ac_cv_have___builtin_ffs=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_have___builtin_ffs" >&5
printf "%s\n" "$ac_cv_have___builtin_ffs" >&6; }
    if test $ac_cv_have___builtin_ffs = yes; then

printf "%s\n" "#define HAVE___BUILTIN_FFS 1" >>confdefs.h

    fi
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for __builtin_ffsl" >&5
printf %s "checking for __builtin_ffsl... " >&6; }
if test ${ac_cv_have___builtin_ffsl+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
volatile long x = 11;
int
main (void)
{
int y = __builtin_ffsl(x);
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_have___builtin_ffsl=yes
else $as_nop
  ac_cv_have___builtin_ffsl=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_have___builtin_ffsl" >&5
printf "%s\n" "$ac_cv_have___builtin_ffsl" >&6; }
    if test $ac_cv_have___builtin_ffsl = yes; then

printf "%s\n" "#define HAVE___BUILTIN_FFSL 1" >>confdefs.h

    fi
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for __builtin_ffsll" >&5
printf %s "checking for __builtin_ffsll... " >&6; }
if test ${ac_cv_have___builtin_ffsll+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
volatile long long x = 11;
int
main (void)
{
int y = __builtin_ffsll(x);
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_have___builtin_ffsll=yes
else $as_nop
  ac_cv_have___builtin_ffsll=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_have___builtin_ffsll" >&5
printf "%s\n" "$ac_cv_have___builtin_ffsll" >&6; }
    if test $ac_cv_have___builtin_ffsll = yes; then

printf "%s\n" "#define HAVE___BUILTIN_FFSLL 1" >>confdefs.h

    fi

    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for __builtin_popcount" >&5
printf %s "checking for __builtin_popcount... " >&6; }
if test ${ac_cv_have___builtin_popcount+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
volatile int x = 11;
int
main (void)
{
int y = __builtin_popcount(x);
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_have___builtin_popcount=yes
else $as_nop
  ac_cv_have___builtin_popcount=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_have___builtin_popcount" >&5
printf "%s\n" "$ac_cv_have___builtin_popcount" >&6; }
    if test $ac_cv_have___builtin_popcount = yes; then

printf "%s\n" "#define HAVE___BUILTIN_POPCOUNT 1" >>confdefs.h

    fi

    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for __sync_synchronize" >&5
printf %s "checking for __sync_synchronize... " >&6; }
if test ${ac_cv_have___sync_synchronize+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
long x = 11;
int
main (void)
{
long *y = &x; __sync_synchronize();
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_have___sync_synchronize=yes
else $as_nop
  ac_cv_have___sync_synchronize=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_have___sync_synchronize" >&5
printf "%s\n" "$ac_cv_have___sync_synchronize" >&6; }
    if test $ac_cv_have___sync_synchronize = yes; then

printf "%s\n" "#define HAVE___SYNC_SYNCHRONIZE 1" >>confdefs.h

    fi
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether __sync_synchronize supports arguments" >&5
printf %s "checking whether __sync_synchronize supports arguments... " >&6; }
if test ${ac_cv_have___sync_synchronize_args+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
long x = 11;
int
main (void)
{
long *y = &x; __sync_synchronize(*y);
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_have___sync_synchronize_args=yes
else $as_nop
  ac_cv_have___sync_synchronize_args=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_have___sync_synchronize_args" >&5
printf "%s\n" "$ac_cv_have___sync_synchronize_args" >&6; }
    if test $ac_cv_have___sync_synchronize_args = yes; then

printf "%s\n" "#define HAVE___SYNC_SYNCHRONIZE_ARGUMENTS 1" >>confdefs.h

    fi

    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for __has_trivial_copy" >&5
printf %s "checking for __has_trivial_copy... " >&6; }
if test ${ac_cv_have___has_trivial_copy+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main (void)
{
long x = 1; if (__has_trivial_copy(long)) x = 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_have___has_trivial_copy=yes
else $as_nop
  ac_cv_have___has_trivial_copy=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_have___has_trivial_copy" >&5
printf "%s\n" "$ac_cv_have___has_trivial_copy" >&6; }
    if test $ac_cv_have___has_trivial_copy = yes; then

printf "%s\n" "#define HAVE___HAS_TRIVIAL_COPY 1" >>confdefs.h

    fi

    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for __thread storage class support" >&5
printf %s "checking for __thread storage class support... " >&6; }
if test ${ac_cv_have___thread+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
__thread long x;
int
main (void)
{
x == 1;
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_have___thread=yes
else $as_nop
  ac_cv_have___thread=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_have___thread" >&5
printf "%s\n" "$ac_cv_have___thread" >&6; }
    if test $ac_cv_have___thread = yes; then

printf "%s\n" "#define HAVE___THREAD_STORAGE_CLASS 1" >>confdefs.h

    fi


    ac_fn_cxx_check_func "$LINENO" "ffs" "ac_cv_func_ffs"
if test "x$ac_cv_func_ffs" = xyes
then :
  printf "%s\n" "#define HAVE_FFS 1" >>confdefs.h

fi
ac_fn_cxx_check_func "$LINENO" "ffsl" "ac_cv_func_ffsl"
if test "x$ac_cv_func_ffsl" = xyes
then :
  printf "%s\n" "#define HAVE_FFSL 1" >>confdefs.h

fi
ac_fn_cxx_check_func "$LINENO" "ffsll" "ac_cv_func_ffsll"
if test "x$ac_cv_func_ffsll" = xyes
then :
  printf "%s\n" "#define HAVE_FFSLL 1" >>confdefs.h

fi



  ax_cxx_compile_alternatives="17 1z"    ax_cxx_compile_cxx17_required=false
  ac_ext=cpp
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
  ac_success=no

      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CXX supports C++17 features by default" >&5
printf %s "checking whether $CXX supports C++17 features by default... " >&6; }
if test ${ax_cv_cxx_compile_cxx17+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */


// If the compiler admits that it is not ready for C++11, why torture it?
// Hopefully, this will speed up the test.

#ifndef __cplusplus

#error "This is not a C++ compiler"

// MSVC always sets __cplusplus to 199711L in older versions; newer versions
// only set it correctly if /Zc:__cplusplus is specified as well as a
// /std:c++NN switch:
// https://devblogs.microsoft.com/cppblog/msvc-now-correctly-reports-__cplusplus/
#elif __cplusplus < 201103L && !defined _MSC_VER

#error "This is not a C++11 compiler"

#else

namespace cxx11
{

  namespace test_static_assert
  {

    template <typename T>
    struct check
    {
      static_assert(sizeof(int) <= sizeof(T), "not big enough");
    };

  }

  namespace test_final_override
  {

    struct Base
    {
      virtual ~Base() {}
      virtual void f() {}
    };

    struct Derived : public Base
    {
      virtual ~Derived() override {}
      virtual void f() override {}
    };

  }

  namespace test_double_right_angle_brackets
  {

    template < typename T >
    struct check {};

    typedef check<void> single_type;
    typedef check<check<void>> double_type;
    typedef check<check<check<void>>> triple_type;
    typedef check<check<check<check<void>>>> quadruple_type;

  }

  namespace test_decltype
  {

    int
    f()
    {
      int a = 1;
      decltype(a) b = 2;
      return a + b;
    }

  }

  namespace test_type_deduction
  {

    template < typename T1, typename T2 >
    struct is_same
    {
      static const bool value = false;
    };

    template < typename T >
    struct is_same<T, T>
    {
      static const bool value = true;
    };

    template < typename T1, typename T2 >
    auto
    add(T1 a1, T2 a2) -> decltype(a1 + a2)
    {
      return a1 + a2;
    }

    int
    test(const int c, volatile int v)
    {
      static_assert(is_same<int, decltype(0)>::value == true, "");
      static_assert(is_same<int, decltype(c)>::value == false, "");
      static_assert(is_same<int, decltype(v)>::value == false, "");
      auto ac = c;
      auto av = v;
      auto sumi = ac + av + 'x';
      auto sumf = ac + av + 1.0;
      static_assert(is_same<int, decltype(ac)>::value == true, "");
      static_assert(is_same<int, decltype(av)>::value == true, "");
      static_assert(is_same<int, decltype(sumi)>::value == true, "");
      static_assert(is_same<int, decltype(sumf)>::value == false, "");
      static_assert(is_same<int, decltype(add(c, v))>::value == true, "");
      return (sumf > 0.0) ? sumi : add(c, v);
    }

  }

  namespace test_noexcept
  {

    int f() { return 0; }
    int g() noexcept { return 0; }

    static_assert(noexcept(f()) == false, "");
    static_assert(noexcept(g()) == true, "");

  }

  namespace test_constexpr
  {

    template < typename CharT >
    unsigned long constexpr
    strlen_c_r(const CharT *const s, const unsigned long acc) noexcept
    {
      return *s ? strlen_c_r(s + 1, acc + 1) : acc;
    }

    template < typename CharT >
    unsigned long constexpr
    strlen_c(const CharT *const s) noexcept
    {
      return strlen_c_r(s, 0UL);
    }

    static_assert(strlen_c("") == 0UL, "");
    static_assert(strlen_c("1") == 1UL, "");
    static_assert(strlen_c("example") == 7UL, "");
    static_assert(strlen_c("another\0example") == 7UL, "");

  }

  namespace test_rvalue_references
  {

    template < int N >
    struct answer
    {
      static constexpr int value = N;
    };

    answer<1> f(int&)       { return answer<1>(); }
    answer<2> f(const int&) { return answer<2>(); }
    answer<3> f(int&&)      { return answer<3>(); }

    void
    test()
    {
      int i = 0;
      const int c = 0;
      static_assert(decltype(f(i))::value == 1, "");
      static_assert(decltype(f(c))::value == 2, "");
      static_assert(decltype(f(0))::value == 3, "");
    }

  }

  namespace test_uniform_initialization
  {

    struct test
    {
      static const int zero {};
      static const int one {1};
    };

    static_assert(test::zero == 0, "");
    static_assert(test::one == 1, "");

  }

  namespace test_lambdas
  {

    void
    test1()
    {
      auto lambda1 = [](){};
      auto lambda2 = lambda1;
      lambda1();
      lambda2();
    }

    int
    test2()
    {
      auto a = [](int i, int j){ return i + j; }(1, 2);
      auto b = []() -> int { return '0'; }();
      auto c = [=](){ return a + b; }();
      auto d = [&](){ return c; }();
      auto e = [a, &b](int x) mutable {
        const auto identity = [](int y){ return y; };
        for (auto i = 0; i < a; ++i)
          a += b--;
        return x + identity(a + b);
      }(0);
      return a + b + c + d + e;
    }

    int
    test3()
    {
      const auto nullary = [](){ return 0; };
      const auto unary = [](int x){ return x; };
      using nullary_t = decltype(nullary);
      using unary_t = decltype(unary);
      const auto higher1st = [](nullary_t f){ return f(); };
      const auto higher2nd = [unary](nullary_t f1){
        return [unary, f1](unary_t f2){ return f2(unary(f1())); };
      };
      return higher1st(nullary) + higher2nd(nullary)(unary);
    }

  }

  namespace test_variadic_templates
  {

    template <int...>
    struct sum;

    template <int N0, int... N1toN>
    struct sum<N0, N1toN...>
    {
      static constexpr auto value = N0 + sum<N1toN...>::value;
    };

    template <>
    struct sum<>
    {
      static constexpr auto value = 0;
    };

    static_assert(sum<>::value == 0, "");
    static_assert(sum<1>::value == 1, "");
    static_assert(sum<23>::value == 23, "");
    static_assert(sum<1, 2>::value == 3, "");
    static_assert(sum<5, 5, 11>::value == 21, "");
    static_assert(sum<2, 3, 5, 7, 11, 13>::value == 41, "");

  }

  // http://stackoverflow.com/questions/13728184/template-aliases-and-sfinae
  // Clang 3.1 fails with headers of libstd++ 4.8.3 when using std::function
  // because of this.
  namespace test_template_alias_sfinae
  {

    struct foo {};

    template<typename T>
    using member = typename T::member_type;

    template<typename T>
    void func(...) {}

    template<typename T>
    void func(member<T>*) {}

    void test();

    void test() { func<foo>(0); }

  }

}  // namespace cxx11

#endif  // __cplusplus >= 201103L




// If the compiler admits that it is not ready for C++14, why torture it?
// Hopefully, this will speed up the test.

#ifndef __cplusplus

#error "This is not a C++ compiler"

#elif __cplusplus < 201402L && !defined _MSC_VER

#error "This is not a C++14 compiler"

#else

namespace cxx14
{

  namespace test_polymorphic_lambdas
  {

    int
    test()
    {
      const auto lambda = [](auto&&... args){
        const auto istiny = [](auto x){
          return (sizeof(x) == 1UL) ? 1 : 0;
        };
        const int aretiny[] = { istiny(args)... };
        return aretiny[0];
      };
      return lambda(1, 1L, 1.0f, '1');
    }

  }

  namespace test_binary_literals
  {

    constexpr auto ivii = 0b0000000000101010;
    static_assert(ivii == 42, "wrong value");

  }

  namespace test_generalized_constexpr
  {

    template < typename CharT >
    constexpr unsigned long
    strlen_c(const CharT *const s) noexcept
    {
      auto length = 0UL;
      for (auto p = s; *p; ++p)
        ++length;
      return length;
    }

    static_assert(strlen_c("") == 0UL, "");
    static_assert(strlen_c("x") == 1UL, "");
    static_assert(strlen_c("test") == 4UL, "");
    static_assert(strlen_c("another\0test") == 7UL, "");

  }

  namespace test_lambda_init_capture
  {

    int
    test()
    {
      auto x = 0;
      const auto lambda1 = [a = x](int b){ return a + b; };
      const auto lambda2 = [a = lambda1(x)](){ return a; };
      return lambda2();
    }

  }

  namespace test_digit_separators
  {

    constexpr auto ten_million = 100'000'000;
    static_assert(ten_million == 100000000, "");

  }

  namespace test_return_type_deduction
  {

    auto f(int& x) { return x; }
    decltype(auto) g(int& x) { return x; }

    template < typename T1, typename T2 >
    struct is_same
    {
      static constexpr auto value = false;
    };

    template < typename T >
    struct is_same<T, T>
    {
      static constexpr auto value = true;
    };

    int
    test()
    {
      auto x = 0;
      static_assert(is_same<int, decltype(f(x))>::value, "");
      static_assert(is_same<int&, decltype(g(x))>::value, "");
      return x;
    }

  }

}  // namespace cxx14

#endif  // __cplusplus >= 201402L




// If the compiler admits that it is not ready for C++17, why torture it?
// Hopefully, this will speed up the test.

#ifndef __cplusplus

#error "This is not a C++ compiler"

#elif __cplusplus < 201703L && !defined _MSC_VER

#error "This is not a C++17 compiler"

#else

#include <initializer_list>
#include <utility>
#include <type_traits>

namespace cxx17
{

  namespace test_constexpr_lambdas
  {

    constexpr int foo = [](){return 42;}();

  }

  namespace test::nested_namespace::definitions
  {

  }

  namespace test_fold_expression
  {

    template<typename... Args>
    int multiply(Args... args)
    {
      return (args * ... * 1);
    }

    template<typename... Args>
    bool all(Args... args)
    {
      return (args && ...);
    }

  }

  namespace test_extended_static_assert
  {

    static_assert (true);

  }

  namespace test_auto_brace_init_list
  {

    auto foo = {5};
    auto bar {5};

    static_assert(std::is_same<std::initializer_list<int>, decltype(foo)>::value);
    static_assert(std::is_same<int, decltype(bar)>::value);
  }

  namespace test_typename_in_template_template_parameter
  {

    template<template<typename> typename X> struct D;

  }

  namespace test_fallthrough_nodiscard_maybe_unused_attributes
  {

    int f1()
    {
      return 42;
    }

    [[nodiscard]] int f2()
    {
      [[maybe_unused]] auto unused = f1();

      switch (f1())
      {
      case 17:
        f1();
        [[fallthrough]];
      case 42:
        f1();
      }
      return f1();
    }

  }

  namespace test_extended_aggregate_initialization
  {

    struct base1
    {
      int b1, b2 = 42;
    };

    struct base2
    {
      base2() {
        b3 = 42;
      }
      int b3;
    };

    struct derived : base1, base2
    {
        int d;
    };

    derived d1 {{1, 2}, {}, 4};  // full initialization
    derived d2 {{}, {}, 4};      // value-initialized bases

  }

  namespace test_general_range_based_for_loop
  {

    struct iter
    {
      int i;

      int& operator* ()
      {
        return i;
      }

      const int& operator* () const
      {
        return i;
      }

      iter& operator++()
      {
        ++i;
        return *this;
      }
    };

    struct sentinel
    {
      int i;
    };

    bool operator== (const iter& i, const sentinel& s)
    {
      return i.i == s.i;
    }

    bool operator!= (const iter& i, const sentinel& s)
    {
      return !(i == s);
    }

    struct range
    {
      iter begin() const
      {
        return {0};
      }

      sentinel end() const
      {
        return {5};
      }
    };

    void f()
    {
      range r {};

      for (auto i : r)
      {
        [[maybe_unused]] auto v = i;
      }
    }

  }

  namespace test_lambda_capture_asterisk_this_by_value
  {

    struct t
    {
      int i;
      int foo()
      {
        return [*this]()
        {
          return i;
        }();
      }
    };

  }

  namespace test_enum_class_construction
  {

    enum class byte : unsigned char
    {};

    byte foo {42};

  }

  namespace test_constexpr_if
  {

    template <bool cond>
    int f ()
    {
      if constexpr(cond)
      {
        return 13;
      }
      else
      {
        return 42;
      }
    }

  }

  namespace test_selection_statement_with_initializer
  {

    int f()
    {
      return 13;
    }

    int f2()
    {
      if (auto i = f(); i > 0)
      {
        return 3;
      }

      switch (auto i = f(); i + 4)
      {
      case 17:
        return 2;

      default:
        return 1;
      }
    }

  }

  namespace test_template_argument_deduction_for_class_templates
  {

    template <typename T1, typename T2>
    struct pair
    {
      pair (T1 p1, T2 p2)
        : m1 {p1},
          m2 {p2}
      {}

      T1 m1;
      T2 m2;
    };

    void f()
    {
      [[maybe_unused]] auto p = pair{13, 42u};
    }

  }

  namespace test_non_type_auto_template_parameters
  {

    template <auto n>
    struct B
    {};

    B<5> b1;
    B<'a'> b2;

  }

  namespace test_structured_bindings
  {

    int arr[2] = { 1, 2 };
    std::pair<int, int> pr = { 1, 2 };

    auto f1() -> int(&)[2]
    {
      return arr;
    }

    auto f2() -> std::pair<int, int>&
    {
      return pr;
    }

    struct S
    {
      int x1 : 2;
      volatile double y1;
    };

    S f3()
    {
      return {};
    }

    auto [ x1, y1 ] = f1();
    auto& [ xr1, yr1 ] = f1();
    auto [ x2, y2 ] = f2();
    auto& [ xr2, yr2 ] = f2();
    const auto [ x3, y3 ] = f3();

  }

  namespace test_exception_spec_type_system
  {

    struct Good {};
    struct Bad {};

    void g1() noexcept;
    void g2();

    template<typename T>
    Bad
    f(T*, T*);

    template<typename T1, typename T2>
    Good
    f(T1*, T2*);

    static_assert (std::is_same_v<Good, decltype(f(g1, g2))>);

  }

  namespace test_inline_variables
  {

    template<class T> void f(T)
    {}

    template<class T> inline T g(T)
    {
      return T{};
    }

    template<> inline void f<>(int)
    {}

    template<> int g<>(int)
    {
      return 5;
    }

  }

}  // namespace cxx17

#endif  // __cplusplus < 201703L && !defined _MSC_VER



_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ax_cv_cxx_compile_cxx17=yes
else $as_nop
  ax_cv_cxx_compile_cxx17=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ax_cv_cxx_compile_cxx17" >&5
printf "%s\n" "$ax_cv_cxx_compile_cxx17" >&6; }
    if test x$ax_cv_cxx_compile_cxx17 = xyes; then
      ac_success=yes
    fi

    if test x$ac_success = xno; then
    for alternative in ${ax_cxx_compile_alternatives}; do
      switch="-std=gnu++${alternative}"
      cachevar=`printf "%s\n" "ax_cv_cxx_compile_cxx17_$switch" | $as_tr_sh`
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CXX supports C++17 features with $switch" >&5
printf %s "checking whether $CXX supports C++17 features with $switch... " >&6; }
if eval test \${$cachevar+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  ac_save_CXX="$CXX"
         CXX="$CXX $switch"
         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */


// If the compiler admits that it is not ready for C++11, why torture it?
// Hopefully, this will speed up the test.

#ifndef __cplusplus

#error "This is not a C++ compiler"

// MSVC always sets __cplusplus to 199711L in older versions; newer versions
// only set it correctly if /Zc:__cplusplus is specified as well as a
// /std:c++NN switch:
// https://devblogs.microsoft.com/cppblog/msvc-now-correctly-reports-__cplusplus/
#elif __cplusplus < 201103L && !defined _MSC_VER

#error "This is not a C++11 compiler"

#else

namespace cxx11
{

  namespace test_static_assert
  {

    template <typename T>
    struct check
    {
      static_assert(sizeof(int) <= sizeof(T), "not big enough");
    };

  }

  namespace test_final_override
  {

    struct Base
    {
      virtual ~Base() {}
      virtual void f() {}
    };

    struct Derived : public Base
    {
      virtual ~Derived() override {}
      virtual void f() override {}
    };

  }

  namespace test_double_right_angle_brackets
  {

    template < typename T >
    struct check {};

    typedef check<void> single_type;
    typedef check<check<void>> double_type;
    typedef check<check<check<void>>> triple_type;
    typedef check<check<check<check<void>>>> quadruple_type;

  }

  namespace test_decltype
  {

    int
    f()
    {
      int a = 1;
      decltype(a) b = 2;
      return a + b;
    }

  }

  namespace test_type_deduction
  {

    template < typename T1, typename T2 >
    struct is_same
    {
      static const bool value = false;
    };

    template < typename T >
    struct is_same<T, T>
    {
      static const bool value = true;
    };

    template < typename T1, typename T2 >
    auto
    add(T1 a1, T2 a2) -> decltype(a1 + a2)
    {
      return a1 + a2;
    }

    int
    test(const int c, volatile int v)
    {
      static_assert(is_same<int, decltype(0)>::value == true, "");
      static_assert(is_same<int, decltype(c)>::value == false, "");
      static_assert(is_same<int, decltype(v)>::value == false, "");
      auto ac = c;
      auto av = v;
      auto sumi = ac + av + 'x';
      auto sumf = ac + av + 1.0;
      static_assert(is_same<int, decltype(ac)>::value == true, "");
      static_assert(is_same<int, decltype(av)>::value == true, "");
      static_assert(is_same<int, decltype(sumi)>::value == true, "");
      static_assert(is_same<int, decltype(sumf)>::value == false, "");
      static_assert(is_same<int, decltype(add(c, v))>::value == true, "");
      return (sumf > 0.0) ? sumi : add(c, v);
    }

  }

  namespace test_noexcept
  {

    int f() { return 0; }
    int g() noexcept { return 0; }

    static_assert(noexcept(f()) == false, "");
    static_assert(noexcept(g()) == true, "");

  }

  namespace test_constexpr
  {

    template < typename CharT >
    unsigned long constexpr
    strlen_c_r(const CharT *const s, const unsigned long acc) noexcept
    {
      return *s ? strlen_c_r(s + 1, acc + 1) : acc;
    }

    template < typename CharT >
    unsigned long constexpr
    strlen_c(const CharT *const s) noexcept
    {
      return strlen_c_r(s, 0UL);
    }

    static_assert(strlen_c("") == 0UL, "");
    static_assert(strlen_c("1") == 1UL, "");
    static_assert(strlen_c("example") == 7UL, "");
    static_assert(strlen_c("another\0example") == 7UL, "");

  }

  namespace test_rvalue_references
  {

    template < int N >
    struct answer
    {
      static constexpr int value = N;
    };

    answer<1> f(int&)       { return answer<1>(); }
    answer<2> f(const int&) { return answer<2>(); }
    answer<3> f(int&&)      { return answer<3>(); }

    void
    test()
    {
      int i = 0;
      const int c = 0;
      static_assert(decltype(f(i))::value == 1, "");
      static_assert(decltype(f(c))::value == 2, "");
      static_assert(decltype(f(0))::value == 3, "");
    }

  }

  namespace test_uniform_initialization
  {

    struct test
    {
      static const int zero {};
      static const int one {1};
    };

    static_assert(test::zero == 0, "");
    static_assert(test::one == 1, "");

  }

  namespace test_lambdas
  {

    void
    test1()
    {
      auto lambda1 = [](){};
      auto lambda2 = lambda1;
      lambda1();
      lambda2();
    }

    int
    test2()
    {
      auto a = [](int i, int j){ return i + j; }(1, 2);
      auto b = []() -> int { return '0'; }();
      auto c = [=](){ return a + b; }();
      auto d = [&](){ return c; }();
      auto e = [a, &b](int x) mutable {
        const auto identity = [](int y){ return y; };
        for (auto i = 0; i < a; ++i)
          a += b--;
        return x + identity(a + b);
      }(0);
      return a + b + c + d + e;
    }

    int
    test3()
    {
      const auto nullary = [](){ return 0; };
      const auto unary = [](int x){ return x; };
      using nullary_t = decltype(nullary);
      using unary_t = decltype(unary);
      const auto higher1st = [](nullary_t f){ return f(); };
      const auto higher2nd = [unary](nullary_t f1){
        return [unary, f1](unary_t f2){ return f2(unary(f1())); };
      };
      return higher1st(nullary) + higher2nd(nullary)(unary);
    }

  }

  namespace test_variadic_templates
  {

    template <int...>
    struct sum;

    template <int N0, int... N1toN>
    struct sum<N0, N1toN...>
    {
      static constexpr auto value = N0 + sum<N1toN...>::value;
    };

    template <>
    struct sum<>
    {
      static constexpr auto value = 0;
    };

    static_assert(sum<>::value == 0, "");
    static_assert(sum<1>::value == 1, "");
    static_assert(sum<23>::value == 23, "");
    static_assert(sum<1, 2>::value == 3, "");
    static_assert(sum<5, 5, 11>::value == 21, "");
    static_assert(sum<2, 3, 5, 7, 11, 13>::value == 41, "");

  }

  // http://stackoverflow.com/questions/13728184/template-aliases-and-sfinae
  // Clang 3.1 fails with headers of libstd++ 4.8.3 when using std::function
  // because of this.
  namespace test_template_alias_sfinae
  {

    struct foo {};

    template<typename T>
    using member = typename T::member_type;

    template<typename T>
    void func(...) {}

    template<typename T>
    void func(member<T>*) {}

    void test();

    void test() { func<foo>(0); }

  }

}  // namespace cxx11

#endif  // __cplusplus >= 201103L




// If the compiler admits that it is not ready for C++14, why torture it?
// Hopefully, this will speed up the test.

#ifndef __cplusplus

#error "This is not a C++ compiler"

#elif __cplusplus < 201402L && !defined _MSC_VER

#error "This is not a C++14 compiler"

#else

namespace cxx14
{

  namespace test_polymorphic_lambdas
  {

    int
    test()
    {
      const auto lambda = [](auto&&... args){
        const auto istiny = [](auto x){
          return (sizeof(x) == 1UL) ? 1 : 0;
        };
        const int aretiny[] = { istiny(args)... };
        return aretiny[0];
      };
      return lambda(1, 1L, 1.0f, '1');
    }

  }

  namespace test_binary_literals
  {

    constexpr auto ivii = 0b0000000000101010;
    static_assert(ivii == 42, "wrong value");

  }

  namespace test_generalized_constexpr
  {

    template < typename CharT >
    constexpr unsigned long
    strlen_c(const CharT *const s) noexcept
    {
      auto length = 0UL;
      for (auto p = s; *p; ++p)
        ++length;
      return length;
    }

    static_assert(strlen_c("") == 0UL, "");
    static_assert(strlen_c("x") == 1UL, "");
    static_assert(strlen_c("test") == 4UL, "");
    static_assert(strlen_c("another\0test") == 7UL, "");

  }

  namespace test_lambda_init_capture
  {

    int
    test()
    {
      auto x = 0;
      const auto lambda1 = [a = x](int b){ return a + b; };
      const auto lambda2 = [a = lambda1(x)](){ return a; };
      return lambda2();
    }

  }

  namespace test_digit_separators
  {

    constexpr auto ten_million = 100'000'000;
    static_assert(ten_million == 100000000, "");

  }

  namespace test_return_type_deduction
  {

    auto f(int& x) { return x; }
    decltype(auto) g(int& x) { return x; }

    template < typename T1, typename T2 >
    struct is_same
    {
      static constexpr auto value = false;
    };

    template < typename T >
    struct is_same<T, T>
    {
      static constexpr auto value = true;
    };

    int
    test()
    {
      auto x = 0;
      static_assert(is_same<int, decltype(f(x))>::value, "");
      static_assert(is_same<int&, decltype(g(x))>::value, "");
      return x;
    }

  }

}  // namespace cxx14

#endif  // __cplusplus >= 201402L




// If the compiler admits that it is not ready for C++17, why torture it?
// Hopefully, this will speed up the test.

#ifndef __cplusplus

#error "This is not a C++ compiler"

#elif __cplusplus < 201703L && !defined _MSC_VER

#error "This is not a C++17 compiler"

#else

#include <initializer_list>
#include <utility>
#include <type_traits>

namespace cxx17
{

  namespace test_constexpr_lambdas
  {

    constexpr int foo = [](){return 42;}();

  }

  namespace test::nested_namespace::definitions
  {

  }

  namespace test_fold_expression
  {

    template<typename... Args>
    int multiply(Args... args)
    {
      return (args * ... * 1);
    }

    template<typename... Args>
    bool all(Args... args)
    {
      return (args && ...);
    }

  }

  namespace test_extended_static_assert
  {

    static_assert (true);

  }

  namespace test_auto_brace_init_list
  {

    auto foo = {5};
    auto bar {5};

    static_assert(std::is_same<std::initializer_list<int>, decltype(foo)>::value);
    static_assert(std::is_same<int, decltype(bar)>::value);
  }

  namespace test_typename_in_template_template_parameter
  {

    template<template<typename> typename X> struct D;

  }

  namespace test_fallthrough_nodiscard_maybe_unused_attributes
  {

    int f1()
    {
      return 42;
    }

    [[nodiscard]] int f2()
    {
      [[maybe_unused]] auto unused = f1();

      switch (f1())
      {
      case 17:
        f1();
        [[fallthrough]];
      case 42:
        f1();
      }
      return f1();
    }

  }

  namespace test_extended_aggregate_initialization
  {

    struct base1
    {
      int b1, b2 = 42;
    };

    struct base2
    {
      base2() {
        b3 = 42;
      }
      int b3;
    };

    struct derived : base1, base2
    {
        int d;
    };

    derived d1 {{1, 2}, {}, 4};  // full initialization
    derived d2 {{}, {}, 4};      // value-initialized bases

  }

  namespace test_general_range_based_for_loop
  {

    struct iter
    {
      int i;

      int& operator* ()
      {
        return i;
      }

      const int& operator* () const
      {
        return i;
      }

      iter& operator++()
      {
        ++i;
        return *this;
      }
    };

    struct sentinel
    {
      int i;
    };

    bool operator== (const iter& i, const sentinel& s)
    {
      return i.i == s.i;
    }

    bool operator!= (const iter& i, const sentinel& s)
    {
      return !(i == s);
    }

    struct range
    {
      iter begin() const
      {
        return {0};
      }

      sentinel end() const
      {
        return {5};
      }
    };

    void f()
    {
      range r {};

      for (auto i : r)
      {
        [[maybe_unused]] auto v = i;
      }
    }

  }

  namespace test_lambda_capture_asterisk_this_by_value
  {

    struct t
    {
      int i;
      int foo()
      {
        return [*this]()
        {
          return i;
        }();
      }
    };

  }

  namespace test_enum_class_construction
  {

    enum class byte : unsigned char
    {};

    byte foo {42};

  }

  namespace test_constexpr_if
  {

    template <bool cond>
    int f ()
    {
      if constexpr(cond)
      {
        return 13;
      }
      else
      {
        return 42;
      }
    }

  }

  namespace test_selection_statement_with_initializer
  {

    int f()
    {
      return 13;
    }

    int f2()
    {
      if (auto i = f(); i > 0)
      {
        return 3;
      }

      switch (auto i = f(); i + 4)
      {
      case 17:
        return 2;

      default:
        return 1;
      }
    }

  }

  namespace test_template_argument_deduction_for_class_templates
  {

    template <typename T1, typename T2>
    struct pair
    {
      pair (T1 p1, T2 p2)
        : m1 {p1},
          m2 {p2}
      {}

      T1 m1;
      T2 m2;
    };

    void f()
    {
      [[maybe_unused]] auto p = pair{13, 42u};
    }

  }

  namespace test_non_type_auto_template_parameters
  {

    template <auto n>
    struct B
    {};

    B<5> b1;
    B<'a'> b2;

  }

  namespace test_structured_bindings
  {

    int arr[2] = { 1, 2 };
    std::pair<int, int> pr = { 1, 2 };

    auto f1() -> int(&)[2]
    {
      return arr;
    }

    auto f2() -> std::pair<int, int>&
    {
      return pr;
    }

    struct S
    {
      int x1 : 2;
      volatile double y1;
    };

    S f3()
    {
      return {};
    }

    auto [ x1, y1 ] = f1();
    auto& [ xr1, yr1 ] = f1();
    auto [ x2, y2 ] = f2();
    auto& [ xr2, yr2 ] = f2();
    const auto [ x3, y3 ] = f3();

  }

  namespace test_exception_spec_type_system
  {

    struct Good {};
    struct Bad {};

    void g1() noexcept;
    void g2();

    template<typename T>
    Bad
    f(T*, T*);

    template<typename T1, typename T2>
    Good
    f(T1*, T2*);

    static_assert (std::is_same_v<Good, decltype(f(g1, g2))>);

  }

  namespace test_inline_variables
  {

    template<class T> void f(T)
    {}

    template<class T> inline T g(T)
    {
      return T{};
    }

    template<> inline void f<>(int)
    {}

    template<> int g<>(int)
    {
      return 5;
    }

  }

}  // namespace cxx17

#endif  // __cplusplus < 201703L && !defined _MSC_VER



_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  eval $cachevar=yes
else $as_nop
  eval $cachevar=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
         CXX="$ac_save_CXX"
fi
eval ac_res=\$$cachevar
	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
printf "%s\n" "$ac_res" >&6; }
      if eval test x\$$cachevar = xyes; then
        CXX="$CXX $switch"
        if test -n "$CXXCPP" ; then
          CXXCPP="$CXXCPP $switch"
        fi
        ac_success=yes
        break
      fi
    done
  fi

    if test x$ac_success = xno; then
                for alternative in ${ax_cxx_compile_alternatives}; do
      for switch in -std=c++${alternative} +std=c++${alternative} "-h std=c++${alternative}"; do
        cachevar=`printf "%s\n" "ax_cv_cxx_compile_cxx17_$switch" | $as_tr_sh`
        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CXX supports C++17 features with $switch" >&5
printf %s "checking whether $CXX supports C++17 features with $switch... " >&6; }
if eval test \${$cachevar+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  ac_save_CXX="$CXX"
           CXX="$CXX $switch"
           cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */


// If the compiler admits that it is not ready for C++11, why torture it?
// Hopefully, this will speed up the test.

#ifndef __cplusplus

#error "This is not a C++ compiler"

// MSVC always sets __cplusplus to 199711L in older versions; newer versions
// only set it correctly if /Zc:__cplusplus is specified as well as a
// /std:c++NN switch:
// https://devblogs.microsoft.com/cppblog/msvc-now-correctly-reports-__cplusplus/
#elif __cplusplus < 201103L && !defined _MSC_VER

#error "This is not a C++11 compiler"

#else

namespace cxx11
{

  namespace test_static_assert
  {

    template <typename T>
    struct check
    {
      static_assert(sizeof(int) <= sizeof(T), "not big enough");
    };

  }

  namespace test_final_override
  {

    struct Base
    {
      virtual ~Base() {}
      virtual void f() {}
    };

    struct Derived : public Base
    {
      virtual ~Derived() override {}
      virtual void f() override {}
    };

  }

  namespace test_double_right_angle_brackets
  {

    template < typename T >
    struct check {};

    typedef check<void> single_type;
    typedef check<check<void>> double_type;
    typedef check<check<check<void>>> triple_type;
    typedef check<check<check<check<void>>>> quadruple_type;

  }

  namespace test_decltype
  {

    int
    f()
    {
      int a = 1;
      decltype(a) b = 2;
      return a + b;
    }

  }

  namespace test_type_deduction
  {

    template < typename T1, typename T2 >
    struct is_same
    {
      static const bool value = false;
    };

    template < typename T >
    struct is_same<T, T>
    {
      static const bool value = true;
    };

    template < typename T1, typename T2 >
    auto
    add(T1 a1, T2 a2) -> decltype(a1 + a2)
    {
      return a1 + a2;
    }

    int
    test(const int c, volatile int v)
    {
      static_assert(is_same<int, decltype(0)>::value == true, "");
      static_assert(is_same<int, decltype(c)>::value == false, "");
      static_assert(is_same<int, decltype(v)>::value == false, "");
      auto ac = c;
      auto av = v;
      auto sumi = ac + av + 'x';
      auto sumf = ac + av + 1.0;
      static_assert(is_same<int, decltype(ac)>::value == true, "");
      static_assert(is_same<int, decltype(av)>::value == true, "");
      static_assert(is_same<int, decltype(sumi)>::value == true, "");
      static_assert(is_same<int, decltype(sumf)>::value == false, "");
      static_assert(is_same<int, decltype(add(c, v))>::value == true, "");
      return (sumf > 0.0) ? sumi : add(c, v);
    }

  }

  namespace test_noexcept
  {

    int f() { return 0; }
    int g() noexcept { return 0; }

    static_assert(noexcept(f()) == false, "");
    static_assert(noexcept(g()) == true, "");

  }

  namespace test_constexpr
  {

    template < typename CharT >
    unsigned long constexpr
    strlen_c_r(const CharT *const s, const unsigned long acc) noexcept
    {
      return *s ? strlen_c_r(s + 1, acc + 1) : acc;
    }

    template < typename CharT >
    unsigned long constexpr
    strlen_c(const CharT *const s) noexcept
    {
      return strlen_c_r(s, 0UL);
    }

    static_assert(strlen_c("") == 0UL, "");
    static_assert(strlen_c("1") == 1UL, "");
    static_assert(strlen_c("example") == 7UL, "");
    static_assert(strlen_c("another\0example") == 7UL, "");

  }

  namespace test_rvalue_references
  {

    template < int N >
    struct answer
    {
      static constexpr int value = N;
    };

    answer<1> f(int&)       { return answer<1>(); }
    answer<2> f(const int&) { return answer<2>(); }
    answer<3> f(int&&)      { return answer<3>(); }

    void
    test()
    {
      int i = 0;
      const int c = 0;
      static_assert(decltype(f(i))::value == 1, "");
      static_assert(decltype(f(c))::value == 2, "");
      static_assert(decltype(f(0))::value == 3, "");
    }

  }

  namespace test_uniform_initialization
  {

    struct test
    {
      static const int zero {};
      static const int one {1};
    };

    static_assert(test::zero == 0, "");
    static_assert(test::one == 1, "");

  }

  namespace test_lambdas
  {

    void
    test1()
    {
      auto lambda1 = [](){};
      auto lambda2 = lambda1;
      lambda1();
      lambda2();
    }

    int
    test2()
    {
      auto a = [](int i, int j){ return i + j; }(1, 2);
      auto b = []() -> int { return '0'; }();
      auto c = [=](){ return a + b; }();
      auto d = [&](){ return c; }();
      auto e = [a, &b](int x) mutable {
        const auto identity = [](int y){ return y; };
        for (auto i = 0; i < a; ++i)
          a += b--;
        return x + identity(a + b);
      }(0);
      return a + b + c + d + e;
    }

    int
    test3()
    {
      const auto nullary = [](){ return 0; };
      const auto unary = [](int x){ return x; };
      using nullary_t = decltype(nullary);
      using unary_t = decltype(unary);
      const auto higher1st = [](nullary_t f){ return f(); };
      const auto higher2nd = [unary](nullary_t f1){
        return [unary, f1](unary_t f2){ return f2(unary(f1())); };
      };
      return higher1st(nullary) + higher2nd(nullary)(unary);
    }

  }

  namespace test_variadic_templates
  {

    template <int...>
    struct sum;

    template <int N0, int... N1toN>
    struct sum<N0, N1toN...>
    {
      static constexpr auto value = N0 + sum<N1toN...>::value;
    };

    template <>
    struct sum<>
    {
      static constexpr auto value = 0;
    };

    static_assert(sum<>::value == 0, "");
    static_assert(sum<1>::value == 1, "");
    static_assert(sum<23>::value == 23, "");
    static_assert(sum<1, 2>::value == 3, "");
    static_assert(sum<5, 5, 11>::value == 21, "");
    static_assert(sum<2, 3, 5, 7, 11, 13>::value == 41, "");

  }

  // http://stackoverflow.com/questions/13728184/template-aliases-and-sfinae
  // Clang 3.1 fails with headers of libstd++ 4.8.3 when using std::function
  // because of this.
  namespace test_template_alias_sfinae
  {

    struct foo {};

    template<typename T>
    using member = typename T::member_type;

    template<typename T>
    void func(...) {}

    template<typename T>
    void func(member<T>*) {}

    void test();

    void test() { func<foo>(0); }

  }

}  // namespace cxx11

#endif  // __cplusplus >= 201103L




// If the compiler admits that it is not ready for C++14, why torture it?
// Hopefully, this will speed up the test.

#ifndef __cplusplus

#error "This is not a C++ compiler"

#elif __cplusplus < 201402L && !defined _MSC_VER

#error "This is not a C++14 compiler"

#else

namespace cxx14
{

  namespace test_polymorphic_lambdas
  {

    int
    test()
    {
      const auto lambda = [](auto&&... args){
        const auto istiny = [](auto x){
          return (sizeof(x) == 1UL) ? 1 : 0;
        };
        const int aretiny[] = { istiny(args)... };
        return aretiny[0];
      };
      return lambda(1, 1L, 1.0f, '1');
    }

  }

  namespace test_binary_literals
  {

    constexpr auto ivii = 0b0000000000101010;
    static_assert(ivii == 42, "wrong value");

  }

  namespace test_generalized_constexpr
  {

    template < typename CharT >
    constexpr unsigned long
    strlen_c(const CharT *const s) noexcept
    {
      auto length = 0UL;
      for (auto p = s; *p; ++p)
        ++length;
      return length;
    }

    static_assert(strlen_c("") == 0UL, "");
    static_assert(strlen_c("x") == 1UL, "");
    static_assert(strlen_c("test") == 4UL, "");
    static_assert(strlen_c("another\0test") == 7UL, "");

  }

  namespace test_lambda_init_capture
  {

    int
    test()
    {
      auto x = 0;
      const auto lambda1 = [a = x](int b){ return a + b; };
      const auto lambda2 = [a = lambda1(x)](){ return a; };
      return lambda2();
    }

  }

  namespace test_digit_separators
  {

    constexpr auto ten_million = 100'000'000;
    static_assert(ten_million == 100000000, "");

  }

  namespace test_return_type_deduction
  {

    auto f(int& x) { return x; }
    decltype(auto) g(int& x) { return x; }

    template < typename T1, typename T2 >
    struct is_same
    {
      static constexpr auto value = false;
    };

    template < typename T >
    struct is_same<T, T>
    {
      static constexpr auto value = true;
    };

    int
    test()
    {
      auto x = 0;
      static_assert(is_same<int, decltype(f(x))>::value, "");
      static_assert(is_same<int&, decltype(g(x))>::value, "");
      return x;
    }

  }

}  // namespace cxx14

#endif  // __cplusplus >= 201402L




// If the compiler admits that it is not ready for C++17, why torture it?
// Hopefully, this will speed up the test.

#ifndef __cplusplus

#error "This is not a C++ compiler"

#elif __cplusplus < 201703L && !defined _MSC_VER

#error "This is not a C++17 compiler"

#else

#include <initializer_list>
#include <utility>
#include <type_traits>

namespace cxx17
{

  namespace test_constexpr_lambdas
  {

    constexpr int foo = [](){return 42;}();

  }

  namespace test::nested_namespace::definitions
  {

  }

  namespace test_fold_expression
  {

    template<typename... Args>
    int multiply(Args... args)
    {
      return (args * ... * 1);
    }

    template<typename... Args>
    bool all(Args... args)
    {
      return (args && ...);
    }

  }

  namespace test_extended_static_assert
  {

    static_assert (true);

  }

  namespace test_auto_brace_init_list
  {

    auto foo = {5};
    auto bar {5};

    static_assert(std::is_same<std::initializer_list<int>, decltype(foo)>::value);
    static_assert(std::is_same<int, decltype(bar)>::value);
  }

  namespace test_typename_in_template_template_parameter
  {

    template<template<typename> typename X> struct D;

  }

  namespace test_fallthrough_nodiscard_maybe_unused_attributes
  {

    int f1()
    {
      return 42;
    }

    [[nodiscard]] int f2()
    {
      [[maybe_unused]] auto unused = f1();

      switch (f1())
      {
      case 17:
        f1();
        [[fallthrough]];
      case 42:
        f1();
      }
      return f1();
    }

  }

  namespace test_extended_aggregate_initialization
  {

    struct base1
    {
      int b1, b2 = 42;
    };

    struct base2
    {
      base2() {
        b3 = 42;
      }
      int b3;
    };

    struct derived : base1, base2
    {
        int d;
    };

    derived d1 {{1, 2}, {}, 4};  // full initialization
    derived d2 {{}, {}, 4};      // value-initialized bases

  }

  namespace test_general_range_based_for_loop
  {

    struct iter
    {
      int i;

      int& operator* ()
      {
        return i;
      }

      const int& operator* () const
      {
        return i;
      }

      iter& operator++()
      {
        ++i;
        return *this;
      }
    };

    struct sentinel
    {
      int i;
    };

    bool operator== (const iter& i, const sentinel& s)
    {
      return i.i == s.i;
    }

    bool operator!= (const iter& i, const sentinel& s)
    {
      return !(i == s);
    }

    struct range
    {
      iter begin() const
      {
        return {0};
      }

      sentinel end() const
      {
        return {5};
      }
    };

    void f()
    {
      range r {};

      for (auto i : r)
      {
        [[maybe_unused]] auto v = i;
      }
    }

  }

  namespace test_lambda_capture_asterisk_this_by_value
  {

    struct t
    {
      int i;
      int foo()
      {
        return [*this]()
        {
          return i;
        }();
      }
    };

  }

  namespace test_enum_class_construction
  {

    enum class byte : unsigned char
    {};

    byte foo {42};

  }

  namespace test_constexpr_if
  {

    template <bool cond>
    int f ()
    {
      if constexpr(cond)
      {
        return 13;
      }
      else
      {
        return 42;
      }
    }

  }

  namespace test_selection_statement_with_initializer
  {

    int f()
    {
      return 13;
    }

    int f2()
    {
      if (auto i = f(); i > 0)
      {
        return 3;
      }

      switch (auto i = f(); i + 4)
      {
      case 17:
        return 2;

      default:
        return 1;
      }
    }

  }

  namespace test_template_argument_deduction_for_class_templates
  {

    template <typename T1, typename T2>
    struct pair
    {
      pair (T1 p1, T2 p2)
        : m1 {p1},
          m2 {p2}
      {}

      T1 m1;
      T2 m2;
    };

    void f()
    {
      [[maybe_unused]] auto p = pair{13, 42u};
    }

  }

  namespace test_non_type_auto_template_parameters
  {

    template <auto n>
    struct B
    {};

    B<5> b1;
    B<'a'> b2;

  }

  namespace test_structured_bindings
  {

    int arr[2] = { 1, 2 };
    std::pair<int, int> pr = { 1, 2 };

    auto f1() -> int(&)[2]
    {
      return arr;
    }

    auto f2() -> std::pair<int, int>&
    {
      return pr;
    }

    struct S
    {
      int x1 : 2;
      volatile double y1;
    };

    S f3()
    {
      return {};
    }

    auto [ x1, y1 ] = f1();
    auto& [ xr1, yr1 ] = f1();
    auto [ x2, y2 ] = f2();
    auto& [ xr2, yr2 ] = f2();
    const auto [ x3, y3 ] = f3();

  }

  namespace test_exception_spec_type_system
  {

    struct Good {};
    struct Bad {};

    void g1() noexcept;
    void g2();

    template<typename T>
    Bad
    f(T*, T*);

    template<typename T1, typename T2>
    Good
    f(T1*, T2*);

    static_assert (std::is_same_v<Good, decltype(f(g1, g2))>);

  }

  namespace test_inline_variables
  {

    template<class T> void f(T)
    {}

    template<class T> inline T g(T)
    {
      return T{};
    }

    template<> inline void f<>(int)
    {}

    template<> int g<>(int)
    {
      return 5;
    }

  }

}  // namespace cxx17

#endif  // __cplusplus < 201703L && !defined _MSC_VER



_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  eval $cachevar=yes
else $as_nop
  eval $cachevar=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
           CXX="$ac_save_CXX"
fi
eval ac_res=\$$cachevar
	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
printf "%s\n" "$ac_res" >&6; }
        if eval test x\$$cachevar = xyes; then
          CXX="$CXX $switch"
          if test -n "$CXXCPP" ; then
            CXXCPP="$CXXCPP $switch"
          fi
          ac_success=yes
          break
        fi
      done
      if test x$ac_success = xyes; then
        break
      fi
    done
  fi
  ac_ext=cpp
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

  if test x$ax_cxx_compile_cxx17_required = xtrue; then
    if test x$ac_success = xno; then
      as_fn_error $? "*** A compiler with support for C++17 language features is required." "$LINENO" 5
    fi
  fi
  if test x$ac_success = xno; then
    HAVE_CXX17=0
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: No compiler with C++17 support was found" >&5
printf "%s\n" "$as_me: No compiler with C++17 support was found" >&6;}
  else
    HAVE_CXX17=1

printf "%s\n" "#define HAVE_CXX17 1" >>confdefs.h

  fi







# The cast to long int works around a bug in the HP C Compiler
# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
# This bug is HP SR number 8606223364.
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking size of struct timeval" >&5
printf %s "checking size of struct timeval... " >&6; }
if test ${ac_cv_sizeof_struct_timeval+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if ac_fn_cxx_compute_int "$LINENO" "(long int) (sizeof (struct timeval))" "ac_cv_sizeof_struct_timeval"        "$ac_includes_default"
then :

else $as_nop
  if test "$ac_cv_type_struct_timeval" = yes; then
     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error 77 "cannot compute sizeof (struct timeval)
See \`config.log' for more details" "$LINENO" 5; }
   else
     ac_cv_sizeof_struct_timeval=0
   fi
fi

fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_struct_timeval" >&5
printf "%s\n" "$ac_cv_sizeof_struct_timeval" >&6; }



printf "%s\n" "#define SIZEOF_STRUCT_TIMEVAL $ac_cv_sizeof_struct_timeval" >>confdefs.h


ac_fn_cxx_check_type "$LINENO" "struct timespec" "ac_cv_type_struct_timespec" "$ac_includes_default
#ifdef HAVE_TIME_H
# include <time.h>
#endif
"
if test "x$ac_cv_type_struct_timespec" = xyes
then :

printf "%s\n" "#define HAVE_STRUCT_TIMESPEC 1" >>confdefs.h

have_timespec=yes
else $as_nop
  have_timespec=no
fi

if test "x$have_timespec" = xyes; then
    # The cast to long int works around a bug in the HP C Compiler
# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
# This bug is HP SR number 8606223364.
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking size of struct timespec" >&5
printf %s "checking size of struct timespec... " >&6; }
if test ${ac_cv_sizeof_struct_timespec+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if ac_fn_cxx_compute_int "$LINENO" "(long int) (sizeof (struct timespec))" "ac_cv_sizeof_struct_timespec"        "$ac_includes_default"
then :

else $as_nop
  if test "$ac_cv_type_struct_timespec" = yes; then
     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error 77 "cannot compute sizeof (struct timespec)
See \`config.log' for more details" "$LINENO" 5; }
   else
     ac_cv_sizeof_struct_timespec=0
   fi
fi

fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_struct_timespec" >&5
printf "%s\n" "$ac_cv_sizeof_struct_timespec" >&6; }



printf "%s\n" "#define SIZEOF_STRUCT_TIMESPEC $ac_cv_sizeof_struct_timespec" >>confdefs.h


fi

    have_clock_gettime=yes; POSIX_CLOCK_LIBS=
    ac_fn_check_decl "$LINENO" "clock_gettime" "ac_cv_have_decl_clock_gettime" "#ifdef HAVE_TIME_H
# include <time.h>
#endif
" "$ac_cxx_undeclared_builtin_options" "CXXFLAGS"
if test "x$ac_cv_have_decl_clock_gettime" = xyes
then :
  ac_have_decl=1
else $as_nop
  ac_have_decl=0
fi
printf "%s\n" "#define HAVE_DECL_CLOCK_GETTIME $ac_have_decl" >>confdefs.h

    SAVELIBS="$LIBS"
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for library containing clock_gettime" >&5
printf %s "checking for library containing clock_gettime... " >&6; }
if test ${ac_cv_search_clock_gettime+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

namespace conftest {
  extern "C" int clock_gettime ();
}
int
main (void)
{
return conftest::clock_gettime ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' rt
do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_cxx_try_link "$LINENO"
then :
  ac_cv_search_clock_gettime=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam \
    conftest$ac_exeext
  if test ${ac_cv_search_clock_gettime+y}
then :
  break
fi
done
if test ${ac_cv_search_clock_gettime+y}
then :

else $as_nop
  ac_cv_search_clock_gettime=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_clock_gettime" >&5
printf "%s\n" "$ac_cv_search_clock_gettime" >&6; }
ac_res=$ac_cv_search_clock_gettime
if test "$ac_res" != no
then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  :
else $as_nop
  have_clock_gettime=no
fi

    if test "x$have_clock_gettime" = xyes; then
        POSIX_CLOCK_LIBS="$LIBS"
    fi

    ac_fn_cxx_check_func "$LINENO" "clock_gettime" "ac_cv_func_clock_gettime"
if test "x$ac_cv_func_clock_gettime" = xyes
then :
  :
else $as_nop
  have_clock_gettime=no
fi

    LIBS="$SAVELIBS"
    if test "x$have_clock_gettime" = xyes; then

printf "%s\n" "#define HAVE_CLOCK_GETTIME 1" >>confdefs.h

    fi


# Check whether --enable-nanotimestamp was given.
if test ${enable_nanotimestamp+y}
then :
  enableval=$enable_nanotimestamp;
fi

# Default to nanosecond-precision timestamps if clock_gettime is available.
if test "x$enable_nanotimestamp" = x -a "x$have_clock_gettime" = xyes; then
    enable_nanotimestamp=yes
fi
if test "x$enable_nanotimestamp" = xyes; then

printf "%s\n" "#define HAVE_NANOTIMESTAMP_ENABLED 1" >>confdefs.h

fi

# Check whether --enable-simtime was given.
if test ${enable_simtime+y}
then :
  enableval=$enable_simtime; printf "%s\n" "#define HAVE_SIMTIME 1" >>confdefs.h

else $as_nop
  enable_simtime=no
fi


# Check whether --enable-user_timestamp was given.
if test ${enable_user_timestamp+y}
then :
  enableval=$enable_user_timestamp; :
else $as_nop
  enable_user_timestamp=no
fi


if test "x$enable_user_timestamp" = xyes; then
if test "x$have_int64_types" != xyes; then
    as_fn_error $? "
=========================================

User-based timestamp needs 64bits types !

=========================================" "$LINENO" 5
fi

printf "%s\n" "#define HAVE_USER_TIMING 1" >>confdefs.h

fi


# Check whether --enable-bound-port-transfer was given.
if test ${enable_bound_port_transfer+y}
then :
  enableval=$enable_bound_port_transfer; :
else $as_nop
  enable_bound_port_transfer=no
fi


if test "$enable_bound_port_transfer" = yes; then

printf "%s\n" "#define HAVE_BOUND_PORT_TRANSFER 1" >>confdefs.h

  if test -z "${CXX##*clang*}" ; then
      as_fn_error $? "--enable-bound-port-transfer does not work with Clang! A better solution is to use click-devirtualize in any case. Remove this option or use GCC (you probably have your CXX environment variable set to clang++)." "$LINENO" 5
  fi
  CXXFLAGS="$CXXFLAGS -Wno-pmf-conversions"
fi

{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether C++ compiler accepts -faligned-new" >&5
printf %s "checking whether C++ compiler accepts -faligned-new... " >&6; }
if test ${ax_cv_check_cxxflags___faligned_new+y}
then :
  printf %s "(cached) " >&6
else $as_nop

  ax_check_save_flags=$CXXFLAGS
  CXXFLAGS="$CXXFLAGS  -faligned-new"
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main (void)
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ax_cv_check_cxxflags___faligned_new=yes
else $as_nop
  ax_cv_check_cxxflags___faligned_new=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
  CXXFLAGS=$ax_check_save_flags
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ax_cv_check_cxxflags___faligned_new" >&5
printf "%s\n" "$ax_cv_check_cxxflags___faligned_new" >&6; }
if test "x$ax_cv_check_cxxflags___faligned_new" = xyes
then :
  have_aligned_new=yes
else $as_nop
  have_aligned_new=no
fi

if test "x$have_aligned_new" = xyes; then
    CXXFLAGS="$CXXFLAGS -faligned-new"
fi


if test "x$enable_flow" = xyes; then
    if test "x$enable_batch" != xyes; then
        as_fn_error $? "--enable-flow needs --enable-batch! Flow subsystem will be disabled." "$LINENO" 5
    else
        printf "%s\n" "#define HAVE_FLOW 1" >>confdefs.h

    fi
    USE_FLOW=yes

fi

if test "x$enable_ctx" = xyes; then
    printf "%s\n" "#define HAVE_CTX 1" >>confdefs.h

    USE_CTX=yes

else
    enable_ctx="no"
fi



# Check whether --enable-ctx-global-timeout was given.
if test ${enable_ctx_global_timeout+y}
then :
  enableval=$enable_ctx_global_timeout; :
else $as_nop
  enable_ctx_global_timeout=$enable_ctx
fi

if test "x$enable_ctx_global_timeout" = xyes; then
    printf "%s\n" "#define HAVE_CTX_GLOBAL_TIMEOUT 1" >>confdefs.h

fi

# Check whether --enable-flow-atomic was given.
if test ${enable_flow_atomic+y}
then :
  enableval=$enable_flow_atomic; :
else $as_nop
  enable_flow_atomic=yes
fi

if test "x$enable_flow_atomic" = xyes; then
    printf "%s\n" "#define FLOW_ATOMIC_USE_COUNT 1" >>confdefs.h

fi

# Check whether --enable-flow-dynamic was given.
if test ${enable_flow_dynamic+y}
then :
  enableval=$enable_flow_dynamic; :
else $as_nop
  enable_flow_dynamic=no
fi

if test "x$enable_flow$enable_flow_dynamic" = xyesyes; then
    printf "%s\n" "#define HAVE_FLOW_DYNAMIC 1" >>confdefs.h

fi

# Check whether --enable-flow-structure was given.
if test ${enable_flow_structure+y}
then :
  enableval=$enable_flow_structure; :
else $as_nop
  enable_flow_structure=yes
fi

if test "x$enable_flow_structure" = xyes; then
    printf "%s\n" "#define FLOW_KEEP_STRUCTURE 1" >>confdefs.h

fi

# Check whether --enable-flow-hash was given.
if test ${enable_flow_hash+y}
then :
  enableval=$enable_flow_hash; :
else $as_nop
  enable_flow_hash=""
fi


if echo "$enable_flow_hash" | grep epoch >/dev/null 2>&1; then

printf "%s\n" "#define FLOW_HASH_RELEASE 2" >>confdefs.h

elif echo "$enable_flow_hash" | grep keep >/dev/null 2>&1; then

printf "%s\n" "#define FLOW_HASH_RELEASE 1" >>confdefs.h

elif echo "$enable_flow_hash" | grep reset >/dev/null 2>&1; then

printf "%s\n" "#define FLOW_HASH_RELEASE 0" >>confdefs.h

else
    if test "x$enable_flow_structure" = xyes; then

printf "%s\n" "#define FLOW_HASH_RELEASE 1" >>confdefs.h

    else

printf "%s\n" "#define FLOW_HASH_RELEASE 2" >>confdefs.h

    fi
fi

# Check whether --enable-tools was given.
if test ${enable_tools+y}
then :
  enableval=$enable_tools; :
else $as_nop
  enable_tools=mixed
fi


if test "$enable_tools" != mixed -a "$enable_tools" != host -a "$enable_tools" != build -a "$enable_tools" != no; then
  as_fn_error $? "
=========================================

Bad value for --enable-tools.  Try 'host', 'build', 'mixed', or 'no'.

=========================================" "$LINENO" 5
elif test "$enable_tools" = no; then
  HOST_TOOLS=host
elif test "$cross_compiling" = no -o "$enable_tools" = host; then
  HOST_TOOLS=host
else
    for ac_prog in gcc
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_prog_BUILD_CC+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test -n "$BUILD_CC"; then
  ac_cv_prog_BUILD_CC="$BUILD_CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
    ac_cv_prog_BUILD_CC="$ac_prog"
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
BUILD_CC=$ac_cv_prog_BUILD_CC
if test -n "$BUILD_CC"; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $BUILD_CC" >&5
printf "%s\n" "$BUILD_CC" >&6; }
else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi


  test -n "$BUILD_CC" && break
done

  for ac_prog in g++
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_prog_BUILD_CXX+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test -n "$BUILD_CXX"; then
  ac_cv_prog_BUILD_CXX="$BUILD_CXX" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
    ac_cv_prog_BUILD_CXX="$ac_prog"
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
BUILD_CXX=$ac_cv_prog_BUILD_CXX
if test -n "$BUILD_CXX"; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $BUILD_CXX" >&5
printf "%s\n" "$BUILD_CXX" >&6; }
else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi


  test -n "$BUILD_CXX" && break
done


        ac_base_build_cxx="$CXX"
    test -z "$ac_user_build_cxx" -a -n "$ac_compile_with_warnings" && \
        BUILD_CXX="$BUILD_CXX$WARNING_CFLAGS"

  for ac_prog in ar
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_prog_BUILD_AR+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test -n "$BUILD_AR"; then
  ac_cv_prog_BUILD_AR="$BUILD_AR" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
    ac_cv_prog_BUILD_AR="$ac_prog"
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
BUILD_AR=$ac_cv_prog_BUILD_AR
if test -n "$BUILD_AR"; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $BUILD_AR" >&5
printf "%s\n" "$BUILD_AR" >&6; }
else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi


  test -n "$BUILD_AR" && break
done

  for ac_prog in ranlib
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_prog_BUILD_RANLIB+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test -n "$BUILD_RANLIB"; then
  ac_cv_prog_BUILD_RANLIB="$BUILD_RANLIB" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
    ac_cv_prog_BUILD_RANLIB="$ac_prog"
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
BUILD_RANLIB=$ac_cv_prog_BUILD_RANLIB
if test -n "$BUILD_RANLIB"; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $BUILD_RANLIB" >&5
printf "%s\n" "$BUILD_RANLIB" >&6; }
else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi


  test -n "$BUILD_RANLIB" && break
done
test -n "$BUILD_RANLIB" || BUILD_RANLIB=":"

  HOST_TOOLS=$enable_tools
fi




# Check whether --enable-dynamic-linking was given.
if test ${enable_dynamic_linking+y}
then :
  enableval=$enable_dynamic_linking; :
else $as_nop
  enable_dynamic_linking=yes
fi

if test "x$enable_dynamic_linking" = xyes; then


    DL_LIBS=

    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
printf %s "checking for dlopen in -ldl... " >&6; }
if test ${ac_cv_lib_dl_dlopen+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  ac_check_lib_save_LIBS=$LIBS
LIBS="-ldl  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

namespace conftest {
  extern "C" int dlopen ();
}
int
main (void)
{
return conftest::dlopen ();
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"
then :
  ac_cv_lib_dl_dlopen=yes
else $as_nop
  ac_cv_lib_dl_dlopen=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
printf "%s\n" "$ac_cv_lib_dl_dlopen" >&6; }
if test "x$ac_cv_lib_dl_dlopen" = xyes
then :
  ac_have_dlopen=yes; DL_LIBS="-ldl"
else $as_nop
  ac_fn_cxx_check_func "$LINENO" "dlopen" "ac_cv_func_dlopen"
if test "x$ac_cv_func_dlopen" = xyes
then :
  ac_have_dlopen=yes
else $as_nop
  ac_have_dlopen=no
fi

fi

    if test "x$ac_have_dlopen" = xyes -a "x$ac_cv_header_dlfcn_h" = xyes; then

printf "%s\n" "#define HAVE_DYNAMIC_LINKING 1" >>confdefs.h

        ac_have_dynamic_linking=yes
    fi


    DL_LDFLAGS=
    save_ldflags="$LDFLAGS"; LDFLAGS="$LDFLAGS -rdynamic"
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether linker accepts the -rdynamic flag" >&5
printf %s "checking whether linker accepts the -rdynamic flag... " >&6; }
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main (void)
{
return 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"
then :
  ac_cv_rdynamic=yes; DL_LDFLAGS=-rdynamic
else $as_nop
  ac_cv_rdynamic=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam \
    conftest$ac_exeext conftest.$ac_ext
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_rdynamic" >&5
printf "%s\n" "$ac_cv_rdynamic" >&6; }
    LDFLAGS="$save_ldflags"


    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking compiler flags for building loadable modules" >&5
printf %s "checking compiler flags for building loadable modules... " >&6; }
    LDMODULEFLAGS=-shared
    SOSUFFIX=so
    if test "x$ac_have_dynamic_linking" = xyes; then
        if echo "$ac_cv_target" | grep apple-darwin >/dev/null 2>&1; then
            LDMODULEFLAGS='-dynamiclib -flat_namespace -undefined suppress'
            SOSUFFIX=dylib
        fi
    fi
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $LDMODULEFLAGS" >&5
printf "%s\n" "$LDMODULEFLAGS" >&6; }



    if test "$HOST_TOOLS" != host -a "$enable_tools" != no; then

    saver="CXX='$CXX' CXXCPP='$CXXCPP' ac_cv_header_dlfcn_h='$ac_cv_header_dlfcn_h' ac_cv_func_dlopen='$ac_cv_func_dlopen' ac_cv_lib_dl_dlopen='$ac_cv_lib_dl_dlopen'"
    CXX="$BUILD_CXX"; CXXCPP="$BUILD_CXX -E"
    unset ac_cv_header_dlfcn_h ac_cv_func_dlopen ac_cv_lib_dl_dlopen
    BUILD_DL_LIBS=
           for ac_header in dlfcn.h
do :
  ac_fn_cxx_check_header_compile "$LINENO" "dlfcn.h" "ac_cv_header_dlfcn_h" "$ac_includes_default"
if test "x$ac_cv_header_dlfcn_h" = xyes
then :
  printf "%s\n" "#define HAVE_DLFCN_H 1" >>confdefs.h
 ac_build_have_dlfcn_h=yes
else $as_nop
  ac_build_have_dlfcn_h=no
fi

done
    ac_fn_cxx_check_func "$LINENO" "dlopen" "ac_cv_func_dlopen"
if test "x$ac_cv_func_dlopen" = xyes
then :
  ac_build_have_dlopen=yes
else $as_nop
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
printf %s "checking for dlopen in -ldl... " >&6; }
if test ${ac_cv_lib_dl_dlopen+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  ac_check_lib_save_LIBS=$LIBS
LIBS="-ldl  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

namespace conftest {
  extern "C" int dlopen ();
}
int
main (void)
{
return conftest::dlopen ();
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"
then :
  ac_cv_lib_dl_dlopen=yes
else $as_nop
  ac_cv_lib_dl_dlopen=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
printf "%s\n" "$ac_cv_lib_dl_dlopen" >&6; }
if test "x$ac_cv_lib_dl_dlopen" = xyes
then :
  ac_build_have_dlopen=yes; BUILD_DL_LIBS="-ldl"
else $as_nop
  ac_have_dlopen=no
fi

fi

    if test "x$ac_build_have_dlopen" = xyes -a "x$ac_build_have_dlfcn_h" = xyes; then
        ac_build_have_dynamic_linking=yes
    fi

    BUILD_DL_LDFLAGS=
    save_ldflags="$LDFLAGS"; LDFLAGS="$LDFLAGS -rdynamic"
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether linker accepts the -rdynamic flag" >&5
printf %s "checking whether linker accepts the -rdynamic flag... " >&6; }
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main (void)
{
return 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"
then :
  ac_cv_build_rdynamic=yes; BUILD_DL_LDFLAGS=-rdynamic
else $as_nop
  ac_cv_build_rdynamic=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam \
    conftest$ac_exeext conftest.$ac_ext
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build_rdynamic" >&5
printf "%s\n" "$ac_cv_build_rdynamic" >&6; }
    LDFLAGS="$save_ldflags"


    if test "x$ac_build_have_dynamic_linking" != "x$ac_have_dynamic_linking"; then
        as_fn_error $? "
=========================================

You have configured Click with '--enable-dynamic-linking', which requires
that both the build system and host system support dynamic linking.
Try running 'configure' with the '--disable-dynamic-linking' option.

=========================================" "$LINENO" 5
    fi

    eval "$saver"

    fi
    CLICK_SHARED=1
else
    CLICK_SHARED=0
fi












    if test x"$ac_cv_header_poll_h" = xyes; then
        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether <poll.h> is emulated" >&5
printf %s "checking whether <poll.h> is emulated... " >&6; }
if test ${ac_cv_emulated_poll_h+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <poll.h>
#ifdef _POLL_EMUL_H_
# error "error"
#endif

int
main (void)
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_emulated_poll_h=no
else $as_nop
  ac_cv_emulated_poll_h=yes
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_emulated_poll_h" >&5
printf "%s\n" "$ac_cv_emulated_poll_h" >&6; }
        if test "x$ac_cv_emulated_poll_h" = xno; then

printf "%s\n" "#define HAVE_POLL_H 1" >>confdefs.h

        fi
    fi

ac_fn_cxx_check_func "$LINENO" "pselect" "ac_cv_func_pselect"
if test "x$ac_cv_func_pselect" = xyes
then :
  printf "%s\n" "#define HAVE_PSELECT 1" >>confdefs.h

fi
ac_fn_cxx_check_func "$LINENO" "sigaction" "ac_cv_func_sigaction"
if test "x$ac_cv_func_sigaction" = xyes
then :
  printf "%s\n" "#define HAVE_SIGACTION 1" >>confdefs.h

fi



  for ac_func in kqueue
do :
  ac_fn_cxx_check_func "$LINENO" "kqueue" "ac_cv_func_kqueue"
if test "x$ac_cv_func_kqueue" = xyes
then :
  printf "%s\n" "#define HAVE_KQUEUE 1" >>confdefs.h
 have_kqueue=yes
fi

done
if test "x$have_kqueue" = xyes; then
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether EV_SET last argument is void *" >&5
printf %s "checking whether EV_SET last argument is void *... " >&6; }
if test ${ac_cv_ev_set_udata_pointer+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <sys/types.h>
#include <sys/event.h>
#include <sys/time.h>
int
main (void)
{
struct kevent kev; EV_SET(&kev, 1, EVFILT_WRITE, EV_ADD, 0, 0, (void *) &kev);
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_ev_set_udata_pointer=yes
else $as_nop
  ac_cv_ev_set_udata_pointer=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_ev_set_udata_pointer" >&5
printf "%s\n" "$ac_cv_ev_set_udata_pointer" >&6; }
    if test $ac_cv_ev_set_udata_pointer = yes; then

printf "%s\n" "#define HAVE_EV_SET_UDATA_POINTER 1" >>confdefs.h

    fi
fi


ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

SOCKET_LIBS=
if test "$enable_userlevel" = yes; then
    savelibs="$LIBS"; LIBS=
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for library containing gethostbyname" >&5
printf %s "checking for library containing gethostbyname... " >&6; }
if test ${ac_cv_search_gethostbyname+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
char gethostbyname ();
int
main (void)
{
return gethostbyname ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' nsl
do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib $savelibs $ac_func_search_save_LIBS"
  fi
  if ac_fn_c_try_link "$LINENO"
then :
  ac_cv_search_gethostbyname=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam \
    conftest$ac_exeext
  if test ${ac_cv_search_gethostbyname+y}
then :
  break
fi
done
if test ${ac_cv_search_gethostbyname+y}
then :

else $as_nop
  ac_cv_search_gethostbyname=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_gethostbyname" >&5
printf "%s\n" "$ac_cv_search_gethostbyname" >&6; }
ac_res=$ac_cv_search_gethostbyname
if test "$ac_res" != no
then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"

fi

    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for library containing connect" >&5
printf %s "checking for library containing connect... " >&6; }
if test ${ac_cv_search_connect+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
char connect ();
int
main (void)
{
return connect ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' socket
do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib $savelibs $ac_func_search_save_LIBS"
  fi
  if ac_fn_c_try_link "$LINENO"
then :
  ac_cv_search_connect=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam \
    conftest$ac_exeext
  if test ${ac_cv_search_connect+y}
then :
  break
fi
done
if test ${ac_cv_search_connect+y}
then :

else $as_nop
  ac_cv_search_connect=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_connect" >&5
printf "%s\n" "$ac_cv_search_connect" >&6; }
ac_res=$ac_cv_search_connect
if test "$ac_res" != no
then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"

fi

    SOCKET_LIBS="$LIBS"; LIBS="$savelibs"

    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether accept() uses socklen_t" >&5
printf %s "checking whether accept() uses socklen_t... " >&6; }
if test ${ac_cv_accept_socklen_t+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <sys/types.h>
#include <sys/socket.h>

int
main (void)
{
socklen_t sl; (void) accept(0, (struct sockaddr *) 0, &sl);
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"
then :
  ac_cv_accept_socklen_t=yes
else $as_nop
  ac_cv_accept_socklen_t=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_accept_socklen_t" >&5
printf "%s\n" "$ac_cv_accept_socklen_t" >&6; }
    if test "$ac_cv_accept_socklen_t" = yes; then

printf "%s\n" "#define HAVE_ACCEPT_SOCKLEN_T 1" >>confdefs.h

    fi
fi

ac_ext=cpp
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu





    ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for large file support in C library" >&5
printf %s "checking for large file support in C library... " >&6; }
if test ${ac_cv_large_file_support+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#define _LARGEFILE_SOURCE 1
#define _FILE_OFFSET_BITS 64
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
void h(off_t a) {
    int fd = open("/tmp/whatever", 0);
    lseek(fd, a, 0);
}
int
main (void)
{
h(15);
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"
then :
  ac_cv_large_file_support=yes
else $as_nop
  ac_cv_large_file_support=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_large_file_support" >&5
printf "%s\n" "$ac_cv_large_file_support" >&6; }
    if test "x$ac_cv_large_file_support" = xyes; then

printf "%s\n" "#define HAVE_LARGE_FILE_SUPPORT 1" >>confdefs.h

    fi

    # The cast to long int works around a bug in the HP C Compiler
# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
# This bug is HP SR number 8606223364.
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking size of off_t" >&5
printf %s "checking size of off_t... " >&6; }
if test ${ac_cv_sizeof_off_t+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (off_t))" "ac_cv_sizeof_off_t"        "#if HAVE_LARGE_FILE_SUPPORT && HAVE_INT64_TYPES
# define _LARGEFILE_SOURCE 1
# define _FILE_OFFSET_BITS 64
#endif
#include <stdio.h>
#include <sys/types.h>
"
then :

else $as_nop
  if test "$ac_cv_type_off_t" = yes; then
     { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error 77 "cannot compute sizeof (off_t)
See \`config.log' for more details" "$LINENO" 5; }
   else
     ac_cv_sizeof_off_t=0
   fi
fi

fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_off_t" >&5
printf "%s\n" "$ac_cv_sizeof_off_t" >&6; }



printf "%s\n" "#define SIZEOF_OFF_T $ac_cv_sizeof_off_t" >>confdefs.h






ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu




ac_func=
for ac_item in $ac_func_c_list
do
  if test $ac_func; then
    ac_fn_c_check_func "$LINENO" $ac_func ac_cv_func_$ac_func
    if eval test \"x\$ac_cv_func_$ac_func\" = xyes; then
      echo "#define $ac_item 1" >> confdefs.h
    fi
    ac_func=
  else
    ac_func=$ac_item
  fi
done


{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for working mmap" >&5
printf %s "checking for working mmap... " >&6; }
if test ${ac_cv_func_mmap_fixed_mapped+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test "$cross_compiling" = yes
then :
  case "$host_os" in # ((
			  # Guess yes on platforms where we know the result.
		  linux*) ac_cv_func_mmap_fixed_mapped=yes ;;
			  # If we don't know, assume the worst.
		  *)      ac_cv_func_mmap_fixed_mapped=no ;;
		esac
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$ac_includes_default
/* malloc might have been renamed as rpl_malloc. */
#undef malloc

/* Thanks to Mike Haertel and Jim Avera for this test.
   Here is a matrix of mmap possibilities:
	mmap private not fixed
	mmap private fixed at somewhere currently unmapped
	mmap private fixed at somewhere already mapped
	mmap shared not fixed
	mmap shared fixed at somewhere currently unmapped
	mmap shared fixed at somewhere already mapped
   For private mappings, we should verify that changes cannot be read()
   back from the file, nor mmap's back from the file at a different
   address.  (There have been systems where private was not correctly
   implemented like the infamous i386 svr4.0, and systems where the
   VM page cache was not coherent with the file system buffer cache
   like early versions of FreeBSD and possibly contemporary NetBSD.)
   For shared mappings, we should conversely verify that changes get
   propagated back to all the places they're supposed to be.

   Grep wants private fixed already mapped.
   The main things grep needs to know about mmap are:
   * does it exist and is it safe to write into the mmap'd area
   * how to use it (BSD variants)  */

#include <fcntl.h>
#include <sys/mman.h>

/* This mess was copied from the GNU getpagesize.h.  */
#ifndef HAVE_GETPAGESIZE
# ifdef _SC_PAGESIZE
#  define getpagesize() sysconf(_SC_PAGESIZE)
# else /* no _SC_PAGESIZE */
#  ifdef HAVE_SYS_PARAM_H
#   include <sys/param.h>
#   ifdef EXEC_PAGESIZE
#    define getpagesize() EXEC_PAGESIZE
#   else /* no EXEC_PAGESIZE */
#    ifdef NBPG
#     define getpagesize() NBPG * CLSIZE
#     ifndef CLSIZE
#      define CLSIZE 1
#     endif /* no CLSIZE */
#    else /* no NBPG */
#     ifdef NBPC
#      define getpagesize() NBPC
#     else /* no NBPC */
#      ifdef PAGESIZE
#       define getpagesize() PAGESIZE
#      endif /* PAGESIZE */
#     endif /* no NBPC */
#    endif /* no NBPG */
#   endif /* no EXEC_PAGESIZE */
#  else /* no HAVE_SYS_PARAM_H */
#   define getpagesize() 8192	/* punt totally */
#  endif /* no HAVE_SYS_PARAM_H */
# endif /* no _SC_PAGESIZE */

#endif /* no HAVE_GETPAGESIZE */

int
main (void)
{
  char *data, *data2, *data3;
  const char *cdata2;
  int i, pagesize;
  int fd, fd2;

  pagesize = getpagesize ();

  /* First, make a file with some known garbage in it. */
  data = (char *) malloc (pagesize);
  if (!data)
    return 1;
  for (i = 0; i < pagesize; ++i)
    *(data + i) = rand ();
  umask (0);
  fd = creat ("conftest.mmap", 0600);
  if (fd < 0)
    return 2;
  if (write (fd, data, pagesize) != pagesize)
    return 3;
  close (fd);

  /* Next, check that the tail of a page is zero-filled.  File must have
     non-zero length, otherwise we risk SIGBUS for entire page.  */
  fd2 = open ("conftest.txt", O_RDWR | O_CREAT | O_TRUNC, 0600);
  if (fd2 < 0)
    return 4;
  cdata2 = "";
  if (write (fd2, cdata2, 1) != 1)
    return 5;
  data2 = (char *) mmap (0, pagesize, PROT_READ | PROT_WRITE, MAP_SHARED, fd2, 0L);
  if (data2 == MAP_FAILED)
    return 6;
  for (i = 0; i < pagesize; ++i)
    if (*(data2 + i))
      return 7;
  close (fd2);
  if (munmap (data2, pagesize))
    return 8;

  /* Next, try to mmap the file at a fixed address which already has
     something else allocated at it.  If we can, also make sure that
     we see the same garbage.  */
  fd = open ("conftest.mmap", O_RDWR);
  if (fd < 0)
    return 9;
  if (data2 != mmap (data2, pagesize, PROT_READ | PROT_WRITE,
		     MAP_PRIVATE | MAP_FIXED, fd, 0L))
    return 10;
  for (i = 0; i < pagesize; ++i)
    if (*(data + i) != *(data2 + i))
      return 11;

  /* Finally, make sure that changes to the mapped area do not
     percolate back to the file as seen by read().  (This is a bug on
     some variants of i386 svr4.0.)  */
  for (i = 0; i < pagesize; ++i)
    *(data2 + i) = *(data2 + i) + 1;
  data3 = (char *) malloc (pagesize);
  if (!data3)
    return 12;
  if (read (fd, data3, pagesize) != pagesize)
    return 13;
  for (i = 0; i < pagesize; ++i)
    if (*(data + i) != *(data3 + i))
      return 14;
  close (fd);
  free (data);
  free (data3);
  return 0;
}
_ACEOF
if ac_fn_c_try_run "$LINENO"
then :
  ac_cv_func_mmap_fixed_mapped=yes
else $as_nop
  ac_cv_func_mmap_fixed_mapped=no
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
  conftest.$ac_objext conftest.beam conftest.$ac_ext
fi

fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_mmap_fixed_mapped" >&5
printf "%s\n" "$ac_cv_func_mmap_fixed_mapped" >&6; }
if test $ac_cv_func_mmap_fixed_mapped = yes; then

printf "%s\n" "#define HAVE_MMAP 1" >>confdefs.h

fi
rm -f conftest.mmap conftest.txt

ac_ext=cpp
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

ac_fn_cxx_check_func "$LINENO" "madvise" "ac_cv_func_madvise"
if test "x$ac_cv_func_madvise" = xyes
then :
  printf "%s\n" "#define HAVE_MADVISE 1" >>confdefs.h

fi

ac_fn_check_decl "$LINENO" "madvise" "ac_cv_have_decl_madvise" "#if HAVE_SYS_MMAN_H
#include <sys/types.h>
#include <sys/mman.h>
#endif
" "$ac_cxx_undeclared_builtin_options" "CXXFLAGS"
if test "x$ac_cv_have_decl_madvise" = xyes
then :
  ac_have_decl=1
else $as_nop
  ac_have_decl=0
fi
printf "%s\n" "#define HAVE_DECL_MADVISE $ac_have_decl" >>confdefs.h




if test "x$enable_ip6" = xyes; then
    EXTRA_DRIVER_OBJS="ip6address.o ip6flowid.o ip6table.o $EXTRA_DRIVER_OBJS"
    EXTRA_TOOL_OBJS="ip6address.o $EXTRA_TOOL_OBJS"
fi





if test $ac_have_linux_kernel = y; then


if test "$linux_system_map" = NONE; then
    linux_system_map=`find_linuxpath System.map`
    if test "x$linux_system_map_boot" != xno -a ! -f "$linux_system_map"; then
        linux_system_map=/boot/System.map-"$linux_system_map_boot"
    fi
fi

{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for Linux System.map" >&5
printf %s "checking for Linux System.map... " >&6; }
if test -r "$linux_system_map"; then
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $linux_system_map" >&5
printf "%s\n" "$linux_system_map" >&6; }
elif test -f "$linux_system_map"; then
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $linux_system_map (unreadable)" >&5
printf "%s\n" "$linux_system_map (unreadable)" >&6; }
    as_fn_error $? "
=========================================

$linux_system_map exists, but is unreadable.
Run 'sudo ./configure', run 'sudo chmod go+r $linux_system_map',
or use the --with-linux=DIR and/or --with-linux-map=MAP options.

=========================================" "$LINENO" 5
else
    if test "x$enable_linuxmodule_default" = xyes; then
        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING:
=========================================

Can't find Linux System.map file $linux_system_map,
so I won't compile the linuxmodule driver.
(You may need the --with-linux=DIR and/or --with-linux-map=MAP options.)

=========================================" >&5
printf "%s\n" "$as_me: WARNING:
=========================================

Can't find Linux System.map file $linux_system_map,
so I won't compile the linuxmodule driver.
(You may need the --with-linux=DIR and/or --with-linux-map=MAP options.)

=========================================" >&2;}
        ac_have_linux_kernel=no
    else
        if test "$linux_system_map" = /nonexistent_file; then
            linux_system_map="in $linuxpath"
        fi
        as_fn_error $? "
=========================================

Can't find Linux System.map file $linux_system_map.
(You may need the --with-linux=DIR and/or --with-linux-map=MAP options.)

=========================================" "$LINENO" 5
            fi
fi

fi


if test $ac_have_linux_kernel = y; then

{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking Linux version" >&5
printf %s "checking Linux version... " >&6; }
linuxpath_makefile=`find_linuxpath Makefile`
linux_version=`grep '^VERSION[         ]*=[  ]*[0-9][0-9]*[    ]*$' "$linuxpath_makefile" | tr -c -d 0-9`
linux_patchlevel=`grep '^PATCHLEVEL[   ]*=[  ]*[0-9][0-9]*[    ]*$' "$linuxpath_makefile" | tr -c -d 0-9`
linux_sublevel=`grep '^SUBLEVEL[       ]*=[  ]*[0-9][0-9]*[    ]*$' "$linuxpath_makefile" | tr -c -d 0-9`
if test -n "$linux_version" -a -n "$linux_patchlevel" -a -z "$linux_sublevel"; then linux_sublevel=0; fi
if test -n "$linux_version" -a -n "$linux_patchlevel" -a -n "$linux_sublevel"; then
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $linux_version.$linux_patchlevel.$linux_sublevel" >&5
printf "%s\n" "$linux_version.$linux_patchlevel.$linux_sublevel" >&6; }
    linux_version_code=`expr $linux_version '*' 65536 + $linux_patchlevel '*' 256 + $linux_sublevel`
else
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unknown" >&5
printf "%s\n" "unknown" >&6; }
    linux_version_code=0
fi

LINUXMODULE_2_6=0
if test "$linux_version.$linux_patchlevel" = 2.6 -o "$linux_version" -ge 3; then
    LINUXMODULE_2_6=1

printf "%s\n" "#define HAVE_LINUXMODULE_2_6 1" >>confdefs.h

fi
if test "$LINUXMODULE_2_6" = 0; then
    as_fn_error $? "
=========================================

Click no longer supports in-kernel compilation on Linux 2.4 kernels.
Update your Linux or try an older version of Click.

=========================================" "$LINENO" 5
fi


{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for Click Linux kernel extensions" >&5
printf %s "checking for Click Linux kernel extensions... " >&6; }
if test ${ac_cv_click_kernel+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if grep "register_net_in" $linux_system_map >/dev/null 2>&1; then
    ac_cv_click_kernel=yes
else ac_cv_click_kernel=no; fi
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_click_kernel" >&5
printf "%s\n" "$ac_cv_click_kernel" >&6; }
if test $ac_cv_click_kernel = yes; then
    printf "%s\n" "#define HAVE_CLICK_KERNEL 1" >>confdefs.h

fi

{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for Click Linux kernel extensions for transmit notification" >&5
printf %s "checking for Click Linux kernel extensions for transmit notification... " >&6; }
if test ${ac_cv_click_kernel_tx_notify+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if grep "register_net_tx" $linux_system_map >/dev/null 2>&1; then
    ac_cv_click_kernel_tx_notify=yes
else ac_cv_click_kernel_tx_notify=no; fi
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_click_kernel_tx_notify" >&5
printf "%s\n" "$ac_cv_click_kernel_tx_notify" >&6; }
if test $ac_cv_click_kernel_tx_notify = yes; then
    printf "%s\n" "#define HAVE_CLICK_KERNEL_TX_NOTIFY 1" >>confdefs.h

fi

{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for read_net_skbcount kernel extension" >&5
printf %s "checking for read_net_skbcount kernel extension... " >&6; }
if test ${ac_cv_linux_read_net_skbcount+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if grep "read_net_skbcount" $linux_system_map >/dev/null 2>&1; then
  ac_cv_linux_read_net_skbcount=yes
else ac_cv_linux_read_net_skbcount=no; fi
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_linux_read_net_skbcount" >&5
printf "%s\n" "$ac_cv_linux_read_net_skbcount" >&6; }
if test $ac_cv_linux_read_net_skbcount = yes; then
    printf "%s\n" "#define HAVE_LINUX_READ_NET_SKBCOUNT 1" >>confdefs.h

fi

{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for strlen kernel symbol" >&5
printf %s "checking for strlen kernel symbol... " >&6; }
if test ${ac_cv_linux_strlen_exposed+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if grep ' strlen' $linux_system_map >/dev/null 2>&1; then
  ac_cv_linux_strlen_exposed=yes
else ac_cv_linux_strlen_exposed=no; fi
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_linux_strlen_exposed" >&5
printf "%s\n" "$ac_cv_linux_strlen_exposed" >&6; }
if test $ac_cv_linux_strlen_exposed = yes; then
    printf "%s\n" "#define HAVE_LINUX_STRLEN_EXPOSED 1" >>confdefs.h

fi

{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for tulip_interrupt_hook kernel symbol" >&5
printf %s "checking for tulip_interrupt_hook kernel symbol... " >&6; }
if test ${ac_cv_linux_tulip_intr_hook+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if grep ' tulip_interrupt_hook' $linux_system_map >/dev/null 2>&1; then
  ac_cv_linux_tulip_intr_hook=yes
else ac_cv_linux_tulip_intr_hook=no; fi
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_linux_tulip_intr_hook" >&5
printf "%s\n" "$ac_cv_linux_tulip_intr_hook" >&6; }
if test $ac_cv_linux_tulip_intr_hook = yes; then
    printf "%s\n" "#define HAVE_LINUX_TULIP_INTERRUPT_HOOK 1" >>confdefs.h

fi

{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for files_lock kernel symbol" >&5
printf %s "checking for files_lock kernel symbol... " >&6; }
if test ${ac_cv_linux_files_lock+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if grep "__ksymtab_files_lock" $linux_system_map >/dev/null 2>&1; then
    ac_cv_linux_files_lock=yes
else ac_cv_linux_files_lock=no; fi
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_linux_files_lock" >&5
printf "%s\n" "$ac_cv_linux_files_lock" >&6; }
if test $ac_cv_linux_files_lock = yes; then
    printf "%s\n" "#define HAVE_LINUX_FILES_LOCK 1" >>confdefs.h

fi

{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for files_lglock kernel symbol" >&5
printf %s "checking for files_lglock kernel symbol... " >&6; }
if test ${ac_cv_linux_files_lglock+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if grep "__ksymtab_files_lglock" $linux_system_map >/dev/null 2>&1; then
    ac_cv_linux_files_lglock=yes
else ac_cv_linux_files_lglock=no; fi
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_linux_files_lglock" >&5
printf "%s\n" "$ac_cv_linux_files_lglock" >&6; }
if test $ac_cv_linux_files_lglock = yes; then
    printf "%s\n" "#define HAVE_LINUX_FILES_LGLOCK 1" >>confdefs.h

fi

{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for sb_lock kernel symbol" >&5
printf %s "checking for sb_lock kernel symbol... " >&6; }
if test ${ac_cv_linux_sb_lock+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if grep "__ksymtab_sb_lock" $linux_system_map >/dev/null 2>&1; then
    ac_cv_linux_sb_lock=yes
else ac_cv_linux_sb_lock=no; fi
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_linux_sb_lock" >&5
printf "%s\n" "$ac_cv_linux_sb_lock" >&6; }
if test $ac_cv_linux_sb_lock = yes; then
    printf "%s\n" "#define HAVE_LINUX_SB_LOCK 1" >>confdefs.h

fi

{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for dev_ioctl kernel symbol" >&5
printf %s "checking for dev_ioctl kernel symbol... " >&6; }
if test ${ac_cv_linux_dev_ioctl+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if grep "__ksymtab_dev_ioctl" $linux_system_map >/dev/null 2>&1; then
    ac_cv_linux_dev_ioctl=yes
else ac_cv_linux_dev_ioctl=no; fi
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_linux_dev_ioctl" >&5
printf "%s\n" "$ac_cv_linux_dev_ioctl" >&6; }
if test $ac_cv_linux_dev_ioctl = yes; then
    printf "%s\n" "#define HAVE_LINUX_DEV_IOCTL 1" >>confdefs.h

fi

{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for devinet_ioctl kernel symbol" >&5
printf %s "checking for devinet_ioctl kernel symbol... " >&6; }
if test ${ac_cv_linux_devinet_ioctl+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if grep "__ksymtab_devinet_ioctl" $linux_system_map >/dev/null 2>&1; then
    ac_cv_linux_devinet_ioctl=yes
else ac_cv_linux_devinet_ioctl=no; fi
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_linux_devinet_ioctl" >&5
printf "%s\n" "$ac_cv_linux_devinet_ioctl" >&6; }
if test $ac_cv_linux_devinet_ioctl = yes; then
    printf "%s\n" "#define HAVE_LINUX_DEVINET_IOCTL 1" >>confdefs.h

fi

{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for inet_ioctl kernel symbol" >&5
printf %s "checking for inet_ioctl kernel symbol... " >&6; }
if test ${ac_cv_linux_inet_ioctl+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if grep "__ksymtab_inet_ioctl" $linux_system_map >/dev/null 2>&1; then
    ac_cv_linux_inet_ioctl=yes
else ac_cv_linux_inet_ioctl=no; fi
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_linux_inet_ioctl" >&5
printf "%s\n" "$ac_cv_linux_inet_ioctl" >&6; }
if test $ac_cv_linux_inet_ioctl = yes; then
    printf "%s\n" "#define HAVE_LINUX_INET_IOCTL 1" >>confdefs.h

fi

{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for inet_ctl_sock_create kernel symbol" >&5
printf %s "checking for inet_ctl_sock_create kernel symbol... " >&6; }
if test ${ac_cv_linux_inet_ctl_sock_create+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if grep "__ksymtab_inet_ctl_sock_create" $linux_system_map >/dev/null 2>&1; then
    ac_cv_linux_inet_ctl_sock_create=yes
else ac_cv_linux_inet_ctl_sock_create=no; fi
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_linux_inet_ctl_sock_create" >&5
printf "%s\n" "$ac_cv_linux_inet_ctl_sock_create" >&6; }
if test $ac_cv_linux_inet_ctl_sock_create = yes; then
    printf "%s\n" "#define HAVE_LINUX_INET_CTL_SOCK_CREATE 1" >>confdefs.h

fi

{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for <linux/ktime.h>" >&5
printf %s "checking for <linux/ktime.h>... " >&6; }
if test ${ac_cv_linux_ktime_h+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if grep ktime_t `find_linuxpath include/linux/ktime.h` >/dev/null 2>&1; then
  ac_cv_linux_ktime_h=yes
else ac_cv_linux_ktime_h=no; fi
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_linux_ktime_h" >&5
printf "%s\n" "$ac_cv_linux_ktime_h" >&6; }
if test $ac_cv_linux_ktime_h = yes; then
    printf "%s\n" "#define HAVE_LINUX_KTIME_H 1" >>confdefs.h

fi

fi



if test $ac_have_bsd_kernel = y; then
    KERNEL_CXX="$KERNEL_CXX -fpermissive"
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking FreeBSD version" >&5
printf %s "checking FreeBSD version... " >&6; }
if test ${ac_cv_freebsd_version+y}
then :
  printf %s "(cached) " >&6
else $as_nop

        save_flags="$CPPFLAGS"
        CPPFLAGS="$CPPFLAGS -I$freebsd_includedir"
        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <sys/param.h>
#if __FreeBSD_version < 700000
#include <NONEXISTENT_FILE>
#endif
int
main (void)
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_freebsd_version=yes
else $as_nop
  ac_cv_freebsd_version=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
        CPPFLAGS="$save_flags"
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_freebsd_version" >&5
printf "%s\n" "$ac_cv_freebsd_version" >&6; }
    if test $ac_cv_freebsd_version = yes; then
        printf "%s\n" "#define HAVE_CLICK_BSD_KERNEL 1" >>confdefs.h

        printf "%s\n" "#define HAVE_BSD_POLLING 1" >>confdefs.h

    else
        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING:
=========================================

Your version of FreeBSD is old.  Click works with FreeBSD 7.x and later.

=========================================" >&5
printf "%s\n" "$as_me: WARNING:
=========================================

Your version of FreeBSD is old.  Click works with FreeBSD 7.x and later.

=========================================" >&2;}
    fi

    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether long and int64_t are the same type in the FreeBSD kernel" >&5
printf %s "checking whether long and int64_t are the same type in the FreeBSD kernel... " >&6; }
if test ${ac_cv_long_64_bsdmodule+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  save_flags="$CPPFLAGS"
        CPPFLAGS="$CPPFLAGS -I$freebsd_includedir"
        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <sys/param.h>
#include <linux/types.h>
void f1(long) {
}
void f1(int64_t) { // will fail if long long and int64_t are the same type
}
int
main (void)
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_long_64_bsdmodule=no
else $as_nop
  ac_cv_long_64_bsdmodule=yes
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_long_64_bsdmodule" >&5
printf "%s\n" "$ac_cv_long_64_bsdmodule" >&6; }
    if test $ac_cv_long_64_bsdmodule = yes; then

printf "%s\n" "#define HAVE_INT64_IS_LONG_BSDMODULE 1" >>confdefs.h

    fi

    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether long long and int64_t are the same type in the FreeBSD kernel" >&5
printf %s "checking whether long long and int64_t are the same type in the FreeBSD kernel... " >&6; }
if test ${ac_cv_long_long_64_bsdmodule+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  save_flags="$CPPFLAGS"
        CPPFLAGS="$CPPFLAGS -I$freebsd_includedir"
        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <sys/param.h>
#include <linux/types.h>
void f1(long long) {
}
void f1(int64_t) { // will fail if long long and int64_t are the same type
}
int
main (void)
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_long_long_64_bsdmodule=no
else $as_nop
  ac_cv_long_long_64_bsdmodule=yes
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_long_long_64_bsdmodule" >&5
printf "%s\n" "$ac_cv_long_long_64_bsdmodule" >&6; }
    if test $ac_cv_long_long_64_bsdmodule = yes; then

printf "%s\n" "#define HAVE_INT64_IS_LONG_LONG_BSDMODULE 1" >>confdefs.h

    fi
fi




# Check whether --enable-stats was given.
if test ${enable_stats+y}
then :
  enableval=$enable_stats; :
else $as_nop
  enable_stats=no
fi

if test "$enable_stats" = no; then enable_stats=0; fi
if test "$enable_stats" = yes; then enable_stats=1; fi
if test "$enable_stats" -ge 0 > /dev/null 2>&1; then
    printf "%s\n" "#define CLICK_STATS $enable_stats" >>confdefs.h

else
    as_fn_error $? "
=========================================

--enable-stats takes an integer, \"yes\", or \"no\".

=========================================" "$LINENO" 5
fi


# Check whether --enable-stride was given.
if test ${enable_stride+y}
then :
  enableval=$enable_stride; :
else $as_nop
  enable_stride=yes
fi

if test $enable_stride = yes; then
    printf "%s\n" "#define HAVE_STRIDE_SCHED 1" >>confdefs.h

fi

# Check whether --enable-task-heap was given.
if test ${enable_task_heap+y}
then :
  enableval=$enable_task_heap; :
else $as_nop
  enable_task_heap=no
fi

if test $enable_task_heap = yes -a $enable_stride = yes; then
    printf "%s\n" "#define HAVE_TASK_HEAP 1" >>confdefs.h

elif test $enable_task_heap = yes; then
        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING:
=========================================

Ignoring --enable-task-heap, which is incompatible with --disable-stride.

=========================================" >&5
printf "%s\n" "$as_me: WARNING:
=========================================

Ignoring --enable-task-heap, which is incompatible with --disable-stride.

=========================================" >&2;}
fi


# Check whether --enable-task-stats was given.
if test ${enable_task_stats+y}
then :
  enableval=$enable_task_stats; :
else $as_nop
  enable_task_stats=no
fi

if test "x$enable_task_stats" = xyes; then
    printf "%s\n" "#define HAVE_TASK_STATS 1" >>confdefs.h

fi

# Check whether --enable-cpu-load was given.
if test ${enable_cpu_load+y}
then :
  enableval=$enable_cpu_load; :
else $as_nop
  enable_cpu_load=no
fi

if test "x$enable_cpu_load" = xyes; then
    printf "%s\n" "#define HAVE_CLICK_LOAD 1" >>confdefs.h

else
    if test "x$enable_rsspp" = xyes; then
        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: --enable-rsspp needs --enable-cpu-load" >&5
printf "%s\n" "$as_me: --enable-rsspp needs --enable-cpu-load" >&6;}
        enable_rsspp=no
    fi
fi

if test "x$enable_rsspp" = xyes; then
    EXTRA_DRIVER_OBJS="nicscheduler.o $EXTRA_DRIVER_OBJS"
else
    enable_rsspp=no
fi

as_ac_File=`printf "%s\n" "ac_cv_file_$srcdir/include/click/flowruleparser.hh" | $as_tr_sh`
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $srcdir/include/click/flowruleparser.hh" >&5
printf %s "checking for $srcdir/include/click/flowruleparser.hh... " >&6; }
if eval test \${$as_ac_File+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  test "$cross_compiling" = yes &&
  as_fn_error $? "cannot check for file existence when cross compiling" "$LINENO" 5
if test -r "$srcdir/include/click/flowruleparser.hh"; then
  eval "$as_ac_File=yes"
else
  eval "$as_ac_File=no"
fi
fi
eval ac_res=\$$as_ac_File
	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
printf "%s\n" "$ac_res" >&6; }
if eval test \"x\$"$as_ac_File"\" = x"yes"
then :
  ac_have_flow_rule_parser_h=yes
else $as_nop
  ac_have_flow_rule_parser_h=no
fi

as_ac_File=`printf "%s\n" "ac_cv_file_$srcdir/include/click/flowrulecache.hh" | $as_tr_sh`
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $srcdir/include/click/flowrulecache.hh" >&5
printf %s "checking for $srcdir/include/click/flowrulecache.hh... " >&6; }
if eval test \${$as_ac_File+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  test "$cross_compiling" = yes &&
  as_fn_error $? "cannot check for file existence when cross compiling" "$LINENO" 5
if test -r "$srcdir/include/click/flowrulecache.hh"; then
  eval "$as_ac_File=yes"
else
  eval "$as_ac_File=no"
fi
fi
eval ac_res=\$$as_ac_File
	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
printf "%s\n" "$ac_res" >&6; }
if eval test \"x\$"$as_ac_File"\" = x"yes"
then :
  ac_have_flow_rule_cache_h=yes
else $as_nop
  ac_have_flow_rule_cache_h=no
fi

as_ac_File=`printf "%s\n" "ac_cv_file_$srcdir/include/click/flowrulemanager.hh" | $as_tr_sh`
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $srcdir/include/click/flowrulemanager.hh" >&5
printf %s "checking for $srcdir/include/click/flowrulemanager.hh... " >&6; }
if eval test \${$as_ac_File+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  test "$cross_compiling" = yes &&
  as_fn_error $? "cannot check for file existence when cross compiling" "$LINENO" 5
if test -r "$srcdir/include/click/flowrulemanager.hh"; then
  eval "$as_ac_File=yes"
else
  eval "$as_ac_File=no"
fi
fi
eval ac_res=\$$as_ac_File
	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
printf "%s\n" "$ac_res" >&6; }
if eval test \"x\$"$as_ac_File"\" = x"yes"
then :
  ac_have_flow_rule_man_h=yes
else $as_nop
  ac_have_flow_rule_man_h=no
fi

if test "x$ac_have_flow_rule_parser_h$ac_have_flow_rule_cache_h$ac_have_flow_rule_man_h$enable_flow_api" = "xyesyesyesyes"; then
    have_flow_api=yes
    printf "%s\n" "#define HAVE_FLOW_API 1" >>confdefs.h

    HAVE_FLOW_API=1

else
    have_flow_api=no
    HAVE_FLOW_API=0

fi


# Check whether --enable-dmalloc was given.
if test ${enable_dmalloc+y}
then :
  enableval=$enable_dmalloc; :
else $as_nop
  enable_dmalloc=no
fi

if test $enable_dmalloc = yes; then

printf "%s\n" "#define CLICK_DMALLOC 1" >>confdefs.h

fi




# Check whether --enable-hash-iterator-epochs was given.
if test ${enable_hash_iterator_epochs+y}
then :
  enableval=$enable_hash_iterator_epochs; :
else $as_nop
  enable_hash_iterator_epochs=no
fi

if test $enable_hash_iterator_epochs = yes; then

printf "%s\n" "#define CLICK_HASH_ITERATOR_EPOCHS 1" >>confdefs.h

fi


# Check whether --enable-force-expensive was given.
if test ${enable_force_expensive+y}
then :
  enableval=$enable_force_expensive; :
else $as_nop
  enable_force_expensive=no
fi

if test $enable_force_expensive = yes; then

printf "%s\n" "#define CLICK_FORCE_EXPENSIVE 1" >>confdefs.h

fi



# Check whether --enable-valgrind was given.
if test ${enable_valgrind+y}
then :
  enableval=$enable_valgrind; :
else $as_nop
  enable_valgrind=no
fi

if test $enable_valgrind = yes; then
           for ac_header in valgrind/memcheck.h
do :
  ac_fn_cxx_check_header_compile "$LINENO" "valgrind/memcheck.h" "ac_cv_header_valgrind_memcheck_h" "$ac_includes_default"
if test "x$ac_cv_header_valgrind_memcheck_h" = xyes
then :
  printf "%s\n" "#define HAVE_VALGRIND_MEMCHECK_H 1" >>confdefs.h
 ac_found_valgrind_memcheck_h=yes
else $as_nop
  ac_found_valgrind_memcheck_h=no
fi

done
    if test $ac_found_valgrind_memcheck_h = no; then
        as_fn_error $? "
=========================================

Can't find Valgrind header file 'valgrind/memcheck.h'.
Try again without '--enable-valgrind'.

=========================================" "$LINENO" 5
            fi

printf "%s\n" "#define HAVE_VALGRIND 1" >>confdefs.h

fi



# Check whether --enable-schedule-debugging was given.
if test ${enable_schedule_debugging+y}
then :
  enableval=$enable_schedule_debugging; :
else $as_nop
  enable_schedule_debugging=no
fi

value=0
if test "$enable_schedule_debugging" = yes; then
    value=1
elif test "$enable_schedule_debugging" = extra; then
    value=2
fi
if test "$value" != 0; then

printf "%s\n" "#define CLICK_DEBUG_SCHEDULING $value" >>confdefs.h

fi

# Check whether --enable-hash-allocator-poisoning was given.
if test ${enable_hash_allocator_poisoning+y}
then :
  enableval=$enable_hash_allocator_poisoning; :
else $as_nop
  enable_hash_allocator_poisoning=no
fi

if test $enable_hash_allocator_poisoning = yes; then
    printf "%s\n" "#define HAVE_HASH_ALLOCATOR_POISONING 1" >>confdefs.h

fi


# Check whether --enable-portable-binary was given.
if test ${enable_portable_binary+y}
then :
  enableval=$enable_portable_binary; acx_maxopt_portable=$enableval
else $as_nop
  acx_maxopt_portable=no
fi

if test $acx_maxopt_portable = no; then
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether C++ compiler accepts -march=native" >&5
printf %s "checking whether C++ compiler accepts -march=native... " >&6; }
if test ${ax_cv_check_cxxflags___march_native+y}
then :
  printf %s "(cached) " >&6
else $as_nop

  ax_check_save_flags=$CXXFLAGS
  CXXFLAGS="$CXXFLAGS  -march=native"
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main (void)
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ax_cv_check_cxxflags___march_native=yes
else $as_nop
  ax_cv_check_cxxflags___march_native=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
  CXXFLAGS=$ax_check_save_flags
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ax_cv_check_cxxflags___march_native" >&5
printf "%s\n" "$ax_cv_check_cxxflags___march_native" >&6; }
if test "x$ax_cv_check_cxxflags___march_native" = xyes
then :
  CXXFLAGS="-march=native $CXXFLAGS";CFLAGS="-march=native $CFLAGS"
else $as_nop
  :
fi

fi


# Check whether --enable-intel-cpu was given.
if test ${enable_intel_cpu+y}
then :
  enableval=$enable_intel_cpu; :
else $as_nop
  enable_intel_cpu=no
fi

if test $enable_intel_cpu = yes; then
    printf "%s\n" "#define HAVE_INTEL_CPU 1" >>confdefs.h

fi


cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#ifndef __AVX2__
#error
#endif

_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  cpu_supports_avx2="yes"
else $as_nop
  cpu_supports_avx2="no"
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext

# Check whether --enable-avx2 was given.
if test ${enable_avx2+y}
then :
  enableval=$enable_avx2; check_avx2=no
else $as_nop
  check_avx2=yes
fi


{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if AVX2 should be used" >&5
printf %s "checking if AVX2 should be used... " >&6; }
if test "x$cpu_supports_avx2$check_avx2" = "xyesyes"; then
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
printf "%s\n" "yes" >&6; }
    printf "%s\n" "#define HAVE_AVX2 1" >>confdefs.h

    save_cflags="$CFLAGS"
    CFLAGS="$save_cflags -mavx2"
    save_cxxflags="$CXXFLAGS"
    CXXFLAGS="$save_cxxflags -mavx2"
else
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi

cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#ifndef __SSE4_2__
#error
#endif

_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  cpu_supports_sse42="yes"
else $as_nop
  cpu_supports_sse42="no"
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
# Check whether --enable-sse42 was given.
if test ${enable_sse42+y}
then :
  enableval=$enable_sse42; check_sse42=no
else $as_nop
  check_sse42=yes
fi


{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if SSE4.2 should be used" >&5
printf %s "checking if SSE4.2 should be used... " >&6; }
if test "x$cpu_supports_sse42$check_sse42" = "xyesyes"; then
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
printf "%s\n" "yes" >&6; }
    printf "%s\n" "#define HAVE_SSE42 1" >>confdefs.h

    save_cflags="$CFLAGS"
    CFLAGS="$save_cflags -msse4.2"
    save_cxxflags="$CXXFLAGS"
    CXXFLAGS="$save_cxxflags -msse4.2"
else
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi



# Check whether --enable-atomic-builtins was given.
if test ${enable_atomic_builtins+y}
then :
  enableval=$enable_atomic_builtins; :
else $as_nop
  enable_atomic_builtins=no
fi

if test "x${enable_atomic_builtins}" = "xyes"; then
        printf "%s\n" "#define HAVE_ATOMIC_BUILTINS 1" >>confdefs.h

fi


shell_expand () {
    val=`eval echo '$'"$1"`
    while echo "x$val" | grep '\$' >/dev/null 2>&1; do val=`eval echo "$val"`; done
    val=`echo "$val" | sed 's,//*,/,g'`
    eval "$1='$val'"
}

shell_mkbuild () {
    val=`eval echo '$'"$1"`
    pval="$prefix"
    while test -n "$pval" -a -n "$val"; do
        component=`echo "$val" | sed 's,^\(/[^/]*\).*,\1,'`
        pcomponent=`echo "$pval" | sed 's,^\(/[^/]*\).*,\1,'`
        if test "$component" != "$pcomponent"; then break; fi
        val=`echo "$val" | sed 's,^/[^/]*,,'`
        pval=`echo "$pval" | sed 's,^/[^/]*,,'`
    done
    while test -n "$pval"; do
        val="/..$val"
        pval=`echo "$pval" | sed 's,^/[^/]*,,'`
    done
    eval "clickbuild_$1='"'$'"{clickbuild_prefix}$val'"
}

test "x$prefix" = xNONE && prefix=$ac_default_prefix
test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'

DIR="$( cd "$( dirname "${BASH_SOURCE0}" )" >/dev/null 2>&1 && pwd )"
clickdir="$DIR"
clickdatadir="$datadir/click"

for i in bin clickdata data dataroot include lib sbin; do
    shell_expand ${i}dir
    shell_mkbuild ${i}dir
done
















POSSIBLE_DRIVERS=
for i in bsdmodule linuxmodule ns userlevel minios; do
    test -f $srcdir/$i/Makefile.in && POSSIBLE_DRIVERS="$POSSIBLE_DRIVERS $i"
done




DRIVERS=


HAVE_USERLEVEL_DRIVER=0

HAVE_LINUXMODULE_DRIVER=0

HAVE_BSDMODULE_DRIVER=0

HAVE_MINIOS_DRIVER=0


OTHER_TARGETS=


for i in click-align click-check click-combine click-devirtualize click-fastclassifier click-flatten click-ipopt click-mkmindriver click-pretty click-undead click-xform click2xml; do
    test -d $srcdir/tools/$i && \
        TOOLDIRS="$TOOLDIRS $i" TOOL_TARGETS="$TOOL_TARGETS $i"
done
for i in click-install; do
    test -d $srcdir/tools/$i && TOOLDIRS="$TOOLDIRS $i"
done




if test "x$enable_dpdk" != "xno"; then

    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for DPDK library" >&5
printf %s "checking for DPDK library... " >&6; }

    if test "x$enable_dpdk" != "xyes"; then
        RTE_SDK=$enable_dpdk
    fi

    if test -z "$RTE_SDK_BIN"; then
        RTE_SDK_BIN=$RTE_SDK/$RTE_TARGET
    fi

    if test ! -d "$RTE_SDK_BIN"; then
        RTE_SDK_BIN=$RTE_SDK/build/
    fi

    if test -z "$RTE_LIBNAME"; then
        RTE_LIBNAME=dpdk
    fi

    if test -z "$RTE_SRCDIR"; then
        RTE_SRCDIR=$RTE_SDK
    fi

    if test "x$enable_user_multithread" != "xyes"; then
        as_fn_error $? "
=========================================

--enable-dpdk requires --enable-user-multithread which was not provided.

=========================================" "$LINENO" 5
    fi


    if test "x$enable_dpdk" = "xyes" && pkg-config --exists libdpdk; then
      dpdk_sys="meson"
      RTE_USE_PKGCONFIG=1

      RTE_LIB=$(pkg-config --variable=libdir libdpdk)
      RTE_INCLUDE=$(pkg-config --variable=includedir libdpdk)
      rte_ver_year=`grep "#define RTE_VER_YEAR" "$RTE_INCLUDE/rte_build_config.h" | head -n 1 | awk '{print $3}'`
      rte_ver_month=`grep "#define RTE_VER_MONTH" "$RTE_INCLUDE/rte_build_config.h" | head -n 1 | awk '{print $3}'`
      rte_ver_minor=`grep "#define RTE_VER_MINOR" "$RTE_INCLUDE/rte_build_config.h" | head -n 1 | awk '{print $3}'`
      rte_ver_major=$rte_ver_year

      if test "x$enable_dynamic_linking" = xyes; then
        DPDK_LIBS=$(pkg-config --libs libdpdk)
      else
        DPDK_LIBS=$(pkg-config --libs --static libdpdk)
      fi
	  DPDK_CFLAGS=$(pkg-config --cflags libdpdk)
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
printf "%s\n" "yes" >&6; }
    else
      dpdk_sys="make"
      RTE_USE_PKGCONFIG=0

      RTE_INCLUDE=${RTE_SDK_BIN}/include/
      RTE_LIB="$RTE_SDK_BIN/lib"
      if test ! -f "$RTE_SDK_BIN/include/rte_eal.h"; then
        as_fn_error $? "
=========================================

Cannot find \$RTE_SDK_BIN/include/rte_eal.h for DPDK.
Define \$RTE_SDK and \$RTE_TARGET as per DPDK documentation,
or install DPDK using meson, or the system package manager.
Note with the system package manager, you need the devel package
version (dpdk-dev or dpdk-devel).

=========================================" "$LINENO" 5
      fi

      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes, found at $RTE_SDK_BIN" >&5
printf "%s\n" "yes, found at $RTE_SDK_BIN" >&6; }

      if test -e "$RTE_SRCDIR/VERSION"; then
        rte_ver_year=`cat $RTE_SRCDIR/VERSION | sed -e 's/-rc/.-rc./' -e 's/$/..99/' | awk -F '.' '{print int($1)}'`
        rte_ver_month=`cat $RTE_SRCDIR/VERSION | sed -e 's/-rc/.-rc./' -e 's/$/..99/' | awk -F '.' '{print int($2)}'`
        rte_ver_minor=`cat $RTE_SRCDIR/VERSION | sed -e 's/-rc/.-rc./' -e 's/$/..99/' | awk -F '.' '{print int($3)}'`
        rte_ver_major=$rte_ver_year
      else
        if grep "#define RTE_VER_MAJOR" "$RTE_SDK_BIN/include/rte_config.h" &> /dev/null; then
            verfile=rte_config
        else
            verfile=rte_version
        fi
        rte_ver_year=`grep "#define RTE_VER_YEAR" "$RTE_SDK_BIN/include/$verfile.h" | head -n 1 | awk '{print $3}'`
        rte_ver_month=`grep "#define RTE_VER_MONTH" "$RTE_SDK_BIN/include/$verfile.h" | head -n 1 | awk '{print $3}'`
        rte_ver_minor=`grep "#define RTE_VER_MINOR" "$RTE_SDK_BIN/include/$verfile.h" | head -n 1 | awk '{print $3}'`
        rte_ver_major=`grep "#define RTE_VER_MAJOR" "$RTE_SDK_BIN/include/$verfile.h" | head -n 1 | awk '{print $3}'`
      fi
      dpdk_vars=`cd userlevel/dpdk/ && make -s RTE_SDK=$RTE_SDK RTE_TARGET=$RTE_TARGET RTE_VER_YEAR=$rte_ver_year RTE_VER_MONTH=$rte_ver_month RTE_VER_MAJOR=$rte_ver_major RTE_VER_MINOR=$rte_ver_minor`
      eval $dpdk_vars
    fi




    RTE_VER_YEAR=$rte_ver_year

    RTE_VER_MONTH=$rte_ver_month

    RTE_VER_MAJOR=$rte_ver_major

    RTE_VER_MINOR=$rte_ver_minor

    DPDK_INCLUDES=-I${RTE_INCLUDE}

    DPDK_LIBS=${DPDK_LIBS}

    DPDK_CFLAGS=${DPDK_CFLAGS}


    printf "%s\n" "#define HAVE_DPDK 1" >>confdefs.h

    USE_DPDK=yes


    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether DPDK has rte_eth_read_clock" >&5
printf %s "checking whether DPDK has rte_eth_read_clock... " >&6; }
    if ${READELF} -Ws "$RTE_LIB/librte_ethdev.a" | grep rte_eth_read_clock &> /dev/null; then
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
printf "%s\n" "yes" >&6; }
      printf "%s\n" "#define HAVE_DPDK_READ_CLOCK 1" >>confdefs.h

    else
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
    fi

    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether DPDK has rte_flow_update" >&5
printf %s "checking whether DPDK has rte_flow_update... " >&6; }
    if ${READELF} -Ws "$RTE_LIB/librte_ethdev.a" | grep rte_flow_update &> /dev/null; then
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
printf "%s\n" "yes" >&6; }
      printf "%s\n" "#define HAVE_RTE_FLOW_UPDATE 1" >>confdefs.h

    else
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
    fi

fi

if test "x$enable_dpdk_pool" = xyes; then
    if test "x$enable_dpdk" = "xno"; then
        as_fn_error $? "
=========================================

--enable-dpdk-pool requires --enable-dpdk which was not provided.

=========================================" "$LINENO" 5
    fi
    printf "%s\n" "#define HAVE_DPDK_PACKET_POOL 1" >>confdefs.h

fi

if test "x$enable_dpdk_xchg" = "xyes"; then
    if test "x$enable_dpdk" = "xno"; then
        as_fn_error $? "
=========================================

--enable-dpdk-xchg requires --enable-dpdk which was not provided.

=========================================" "$LINENO" 5
    fi
    printf "%s\n" "#define HAVE_DPDK_XCHG 1" >>confdefs.h

    HAVE_DPDK_XCHG=y

    DPDK_LIBS=$(echo "$DPDK_LIBS" | sed -e "s/-lrte_xchg_mbuf//")

    EXTRA_DRIVER_OBJS="$EXTRA_DRIVER_OBJS fromdpdkdevicexchg.o todpdkdevicexchg.o"
fi

if test "x$enable_dpdk_packet" = "xyes"; then
    if test "x$enable_dpdk" = "xno"; then
        as_fn_error $? "
=========================================

--enable-dpdk-packet requires --enable-dpdk which was not provided.

=========================================" "$LINENO" 5
    fi
    printf "%s\n" "#define CLICK_PACKET_USE_DPDK 1" >>confdefs.h

fi



if test "$enable_userlevel" = yes; then



    HAVE_PCAP=yes
    if test "${PCAP_INCLUDES-NO}" = NO; then
        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for pcap.h" >&5
printf %s "checking for pcap.h... " >&6; }
if test ${ac_cv_pcap_header_path+y}
then :
  printf %s "(cached) " >&6
else $as_nop

            cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <pcap.h>
_ACEOF
if ac_fn_cxx_try_cpp "$LINENO"
then :
  ac_cv_pcap_header_path="found"
else $as_nop
  ac_cv_pcap_header_path='not found'
            test -r /usr/local/include/pcap/pcap.h && \
                ac_cv_pcap_header_path='-I/usr/local/include/pcap'
            test -r /usr/include/pcap/pcap.h && \
                ac_cv_pcap_header_path='-I/usr/include/pcap'
fi
rm -f conftest.err conftest.i conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_pcap_header_path" >&5
printf "%s\n" "$ac_cv_pcap_header_path" >&6; }
        if test "$ac_cv_pcap_header_path" = 'not found'; then
            HAVE_PCAP=
        elif test "$ac_cv_pcap_header_path" != 'found'; then
            PCAP_INCLUDES="$ac_cv_pcap_header_path"
        fi
    fi

    if test "$HAVE_PCAP" = yes; then
        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether pcap.h works" >&5
printf %s "checking whether pcap.h works... " >&6; }
if test ${ac_cv_working_pcap_h+y}
then :
  printf %s "(cached) " >&6
else $as_nop

            saveflags="$CPPFLAGS"
            CPPFLAGS="$saveflags $PCAP_INCLUDES"
            cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <pcap.h>
_ACEOF
if ac_fn_cxx_try_cpp "$LINENO"
then :
  ac_cv_working_pcap_h=yes
else $as_nop
  ac_cv_working_pcap_h=no
fi
rm -f conftest.err conftest.i conftest.$ac_ext
            CPPFLAGS="$saveflags"
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_working_pcap_h" >&5
printf "%s\n" "$ac_cv_working_pcap_h" >&6; }
        test "$ac_cv_working_pcap_h" != yes && HAVE_PCAP=
    else
        HAVE_PCAP=no
    fi

    if test "$HAVE_PCAP" = yes; then
        saveflags="$CPPFLAGS"
        CPPFLAGS="$saveflags $PCAP_INCLUDES"
        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for bpf_timeval in pcap.h" >&5
printf %s "checking for bpf_timeval in pcap.h... " >&6; }
if test ${ac_cv_bpf_timeval+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <pcap.h>

_ACEOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
  $EGREP "bpf_timeval" >/dev/null 2>&1
then :
  ac_cv_bpf_timeval=yes
else $as_nop
  ac_cv_bpf_timeval=no
fi
rm -rf conftest*

fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_bpf_timeval" >&5
printf "%s\n" "$ac_cv_bpf_timeval" >&6; }
        if test "$ac_cv_bpf_timeval" = yes; then

printf "%s\n" "#define HAVE_BPF_TIMEVAL 1" >>confdefs.h

        fi
        ac_fn_check_decl "$LINENO" "pcap_setnonblock" "ac_cv_have_decl_pcap_setnonblock" "#include <pcap.h>
" "$ac_cxx_undeclared_builtin_options" "CXXFLAGS"
if test "x$ac_cv_have_decl_pcap_setnonblock" = xyes
then :
  ac_have_decl=1
else $as_nop
  ac_have_decl=0
fi
printf "%s\n" "#define HAVE_DECL_PCAP_SETNONBLOCK $ac_have_decl" >>confdefs.h

        CPPFLAGS="$saveflags"
    fi

    test "$HAVE_PCAP" != yes && PCAP_INCLUDES=




    if test "$HAVE_PCAP" = yes; then
        if test "${PCAP_LIBS-NO}" = NO; then
            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for -lpcap" >&5
printf %s "checking for -lpcap... " >&6; }
if test ${ac_cv_pcap_library_path+y}
then :
  printf %s "(cached) " >&6
else $as_nop

                saveflags="$LDFLAGS"
                savelibs="$LIBS"
                LIBS="$savelibs -lpcap $SOCKET_LIBS"
                ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

                cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
char pcap_open_live ();
int
main (void)
{
return pcap_open_live ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"
then :
  ac_cv_pcap_library_path="found"
else $as_nop
  LDFLAGS="$saveflags -L/usr/local/lib"
                                cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
char pcap_open_live ();
int
main (void)
{
return pcap_open_live ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"
then :
  ac_cv_pcap_library_path="-L/usr/local/lib"
else $as_nop
  ac_cv_pcap_library_path="not found"
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam \
    conftest$ac_exeext conftest.$ac_ext
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam \
    conftest$ac_exeext conftest.$ac_ext
                LDFLAGS="$saveflags"
                LIBS="$savelibs"
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_pcap_library_path" >&5
printf "%s\n" "$ac_cv_pcap_library_path" >&6; }
        else
            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for -lpcap in \"$PCAP_LIBS\"" >&5
printf %s "checking for -lpcap in \"$PCAP_LIBS\"... " >&6; }
if test ${ac_cv_pcap_library_path+y}
then :
  printf %s "(cached) " >&6
else $as_nop

                saveflags="$LDFLAGS"
                LDFLAGS="$saveflags $PCAP_LIBS"
                savelibs="$LIBS"
                LIBS="$savelibs -lpcap $SOCKET_LIBS"
                ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

                cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
char pcap_open_live ();
int
main (void)
{
return pcap_open_live ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"
then :
  ac_cv_pcap_library_path="$PCAP_LIBS"
else $as_nop
  ac_cv_pcap_library_path="not found"
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam \
    conftest$ac_exeext conftest.$ac_ext
                LDFLAGS="$saveflags"
                LIBS="$savelibs"
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_pcap_library_path" >&5
printf "%s\n" "$ac_cv_pcap_library_path" >&6; }
        fi
        if test "$ac_cv_pcap_library_path" = "found"; then
            PCAP_LIBS='-lpcap'
        elif test "$ac_cv_pcap_library_path" != "not found"; then
            PCAP_LIBS="$ac_cv_pcap_library_path -lpcap"
        else
            HAVE_PCAP=
        fi
    fi

    test "$HAVE_PCAP" != yes && PCAP_LIBS=


    if test "$HAVE_PCAP" = yes; then

printf "%s\n" "#define HAVE_PCAP 1" >>confdefs.h


        savelibs="$LIBS"
        LIBS="$savelibs $PCAP_LIBS"
        ac_fn_c_check_func "$LINENO" "pcap_inject" "ac_cv_func_pcap_inject"
if test "x$ac_cv_func_pcap_inject" = xyes
then :
  printf "%s\n" "#define HAVE_PCAP_INJECT 1" >>confdefs.h

fi
ac_fn_c_check_func "$LINENO" "pcap_sendpacket" "ac_cv_func_pcap_sendpacket"
if test "x$ac_cv_func_pcap_sendpacket" = xyes
then :
  printf "%s\n" "#define HAVE_PCAP_SENDPACKET 1" >>confdefs.h

fi
ac_fn_c_check_func "$LINENO" "pcap_setdirection" "ac_cv_func_pcap_setdirection"
if test "x$ac_cv_func_pcap_setdirection" = xyes
then :
  printf "%s\n" "#define HAVE_PCAP_SETDIRECTION 1" >>confdefs.h

fi
ac_fn_c_check_func "$LINENO" "pcap_setnonblock" "ac_cv_func_pcap_setnonblock"
if test "x$ac_cv_func_pcap_setnonblock" = xyes
then :
  printf "%s\n" "#define HAVE_PCAP_SETNONBLOCK 1" >>confdefs.h

fi
ac_fn_c_check_func "$LINENO" "pcap_set_immediate_mode" "ac_cv_func_pcap_set_immediate_mode"
if test "x$ac_cv_func_pcap_set_immediate_mode" = xyes
then :
  printf "%s\n" "#define HAVE_PCAP_SET_IMMEDIATE_MODE 1" >>confdefs.h

fi

        LIBS="$savelibs"
    fi




# Check whether --with-numa was given.
if test ${with_numa+y}
then :
  withval=$with_numa; use_numa=$withval
else $as_nop
  use_numa=yes
fi


    if test "$use_numa" != "yes" -a "$use_numa" != "no"; then
        if test "${NUMA_INCLUDES-NO}" != NO; then
            :
        elif test -f "$use_numa/numa.h"; then
            NUMA_INCLUDES="-I$use_numa"
        fi
    fi

    HAVE_NUMA=no

    if test "$use_numa" != "no"; then
        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for library containing numa_available" >&5
printf %s "checking for library containing numa_available... " >&6; }
if test ${ac_cv_search_numa_available+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
char numa_available ();
int
main (void)
{
return numa_available ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' numa
do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_c_try_link "$LINENO"
then :
  ac_cv_search_numa_available=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam \
    conftest$ac_exeext
  if test ${ac_cv_search_numa_available+y}
then :
  break
fi
done
if test ${ac_cv_search_numa_available+y}
then :

else $as_nop
  ac_cv_search_numa_available=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_numa_available" >&5
printf "%s\n" "$ac_cv_search_numa_available" >&6; }
ac_res=$ac_cv_search_numa_available
if test "$ac_res" != no
then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  ac_have_libnuma=yes
else $as_nop
  ac_have_libnuma=no
fi


        if test "$ac_have_libnuma" = yes; then

printf "%s\n" "#define HAVE_NUMA 1" >>confdefs.h

            LDFLAGS="$LDFLAGS -lnuma"
        fi

        if test "$HAVE_NUMA" = yes; then
            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether numa.h works" >&5
printf %s "checking whether numa.h works... " >&6; }
if test ${ac_cv_working_numa_h+y}
then :
  printf %s "(cached) " >&6
else $as_nop

                cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <numa.h>
_ACEOF
if ac_fn_c_try_cpp "$LINENO"
then :
  ac_cv_working_numa_h=yes
else $as_nop
  ac_cv_working_numa_h=no
fi
rm -f conftest.err conftest.i conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_working_numa_h" >&5
printf "%s\n" "$ac_cv_working_numa_h" >&6; }
            test "$ac_cv_working_numa_h" != yes && HAVE_NUMA=
        fi
    fi





# Check whether --with-netmap was given.
if test ${with_netmap+y}
then :
  withval=$with_netmap; use_netmap=$withval
else $as_nop
  use_netmap=no
fi


    if test "$use_netmap" != "yes" -a "$use_netmap" != "no"; then
        if test "${NETMAP_INCLUDES-NO}" != NO; then
            :
        elif test -f "$use_netmap/net/netmap.h"; then
            NETMAP_INCLUDES="-I$use_netmap"
        elif test -f "$use_netmap/include/net/netmap.h"; then
            NETMAP_INCLUDES="-I$use_netmap/include"
        fi
    fi
    saveflags="$CPPFLAGS"
    CPPFLAGS="$saveflags $NETMAP_INCLUDES"

    HAVE_NETMAP=no
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for net/netmap.h" >&5
printf %s "checking for net/netmap.h... " >&6; }
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <net/netmap.h>
_ACEOF
if ac_fn_c_try_cpp "$LINENO"
then :
  ac_cv_net_netmap_header_path="found"
else $as_nop
  ac_cv_net_netmap_header_path="not found"
fi
rm -f conftest.err conftest.i conftest.$ac_ext
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_net_netmap_header_path" >&5
printf "%s\n" "$ac_cv_net_netmap_header_path" >&6; }

    if test "$ac_cv_net_netmap_header_path" = "found"; then
        HAVE_NETMAP=yes
    fi

    if test "$HAVE_NETMAP" = yes; then
        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether net/netmap.h works" >&5
printf %s "checking whether net/netmap.h works... " >&6; }
if test ${ac_cv_working_net_netmap_h+y}
then :
  printf %s "(cached) " >&6
else $as_nop

            cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <net/netmap.h>
_ACEOF
if ac_fn_c_try_cpp "$LINENO"
then :
  ac_cv_working_net_netmap_h=yes
else $as_nop
  ac_cv_working_net_netmap_h=no
fi
rm -f conftest.err conftest.i conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_working_net_netmap_h" >&5
printf "%s\n" "$ac_cv_working_net_netmap_h" >&6; }
        test "$ac_cv_working_net_netmap_h" != yes && HAVE_NETMAP=
    fi

    CPPFLAGS="$saveflags"
    if test "$HAVE_NETMAP" = yes -a "$use_netmap" != no; then

printf "%s\n" "#define HAVE_NETMAP 1" >>confdefs.h

        EXTRA_DRIVER_OBJS="netmapdevice.o $EXTRA_DRIVER_OBJS"
    else
        HAVE_NETMAP=no
    fi




    if test "$HAVE_PCAP" != yes -a "$HAVE_NETMAP" != yes -a "$ac_cv_under_linux" != yes; then
        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING:
=========================================

pcap.h and/or -lpcap not found; user-level driver can't steal packets.

=========================================" >&5
printf "%s\n" "$as_me: WARNING:
=========================================

pcap.h and/or -lpcap not found; user-level driver can't steal packets.

=========================================" >&2;}
            fi
    DRIVERS="$DRIVERS userlevel"
    printf "%s\n" "#define HAVE_USERLEVEL_DRIVER 1" >>confdefs.h

    HAVE_USERLEVEL_DRIVER=1
fi

if test "x$enable_dpdk_packet" = "xyes" -a "x$HAVE_NETMAP" = "xyes"; then
        as_fn_error $? "--with-netmap is not compatible with --enable-dpdk-packet " "$LINENO" 5
fi

if test "x$enable_netmap_pool" = "xyes"; then
    if test "x$HAVE_NETMAP" != "xyes"; then
        as_fn_error $? "
=========================================

--enable-netmap-pool requires --with-netmap which was not provided.

=========================================" "$LINENO" 5
    fi
    if test "x$enable_zerocopy" != "xyes"; then
        as_fn_error $? "
=========================================

--enable-netmap-pool requires --enable-zerocopy which was not provided.

=========================================" "$LINENO" 5
    fi
    printf "%s\n" "#define HAVE_NETMAP_PACKET_POOL 1" >>confdefs.h

    HAVE_NETMAP_PACKET_POOL=yes

fi


{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether struct if_data has ifi_datalen" >&5
printf %s "checking whether struct if_data has ifi_datalen... " >&6; }
if test ${ac_cv_if_data_ifi_datalen+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <net/if.h>
#include <net/if_var.h>

int
main (void)
{
struct if_msghdr ifm; ifm.ifm_data.ifi_datalen = 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"
then :
  ac_cv_if_data_ifi_datalen=yes
else $as_nop
  ac_cv_if_data_ifi_datalen=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_if_data_ifi_datalen" >&5
printf "%s\n" "$ac_cv_if_data_ifi_datalen" >&6; }
if test "x$ac_cv_if_data_ifi_datalen" = xyes; then

printf "%s\n" "#define HAVE_IF_DATA_IFI_DATALEN 1" >>confdefs.h

fi

{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether struct sockaddr_in has sin_len" >&5
printf %s "checking whether struct sockaddr_in has sin_len... " >&6; }
if test ${ac_cv_sockaddr_in_sin_len+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <sys/socket.h>
#include <netinet/in.h>

int
main (void)
{
struct sockaddr_in sin; sin.sin_len = 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"
then :
  ac_cv_sockaddr_in_sin_len=yes
else $as_nop
  ac_cv_sockaddr_in_sin_len=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sockaddr_in_sin_len" >&5
printf "%s\n" "$ac_cv_sockaddr_in_sin_len" >&6; }
if test "x$ac_cv_sockaddr_in_sin_len" = xyes; then

printf "%s\n" "#define HAVE_SOCKADDR_IN_SIN_LEN 1" >>confdefs.h

fi



explicit_proper=yes

# Check whether --with-proper was given.
if test ${with_proper+y}
then :
  withval=$with_proper; properprefix=$withval; if test -z "$withval" -o "$withval" = yes; then properprefix=; fi
else $as_nop
  properprefix=no; explicit_proper=no
fi

if test "$properprefix" != no; then

    saveflags="$CPPFLAGS"; test -n "$properprefix" && CPPFLAGS="$CPPFLAGS -I$properprefix/include"
    ac_fn_c_check_header_compile "$LINENO" "prop.h" "ac_cv_header_prop_h" "$ac_includes_default"
if test "x$ac_cv_header_prop_h" = xyes
then :
  have_prop_h=yes
else $as_nop
  have_prop_h=no
fi

    CPPFLAGS="$saveflags"

    ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

    saveflags="$LDFLAGS"; test -n "$properprefix" && LDFLAGS="$LDFLAGS -L$properprefix/lib"
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for prop_open in -lproper" >&5
printf %s "checking for prop_open in -lproper... " >&6; }
if test ${ac_cv_lib_proper_prop_open+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lproper  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
char prop_open ();
int
main (void)
{
return prop_open ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"
then :
  ac_cv_lib_proper_prop_open=yes
else $as_nop
  ac_cv_lib_proper_prop_open=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_proper_prop_open" >&5
printf "%s\n" "$ac_cv_lib_proper_prop_open" >&6; }
if test "x$ac_cv_lib_proper_prop_open" = xyes
then :
  have_libproper=yes
else $as_nop
  have_libproper=no
fi

    LDFLAGS="$saveflags"
    ac_ext=cpp
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu


    if test $have_prop_h = yes -a $have_libproper = yes; then
        printf "%s\n" "#define HAVE_PROPER 1" >>confdefs.h

        test -n "$properprefix" && PROPER_INCLUDES="-I$properprefix/include" && PROPER_LIBS="-L$properprefix/lib"
        PROPER_LIBS="$PROPER_LIBS -lproper"
    elif test $explicit_proper = yes; then
        PROPER_INCLUDES= PROPER_LIBS=
        as_fn_error $? "
=========================================

You explicitly specified --with-proper, but the proper headers and/or
libraries are not where you said they would be.  Run again supplying
--without-proper or --with-proper=PREFIX.

=========================================" "$LINENO" 5
    fi
fi





explicit_expat=yes

# Check whether --with-expat was given.
if test ${with_expat+y}
then :
  withval=$with_expat; expatprefix=$withval; if test -z "$withval" -o "$withval" = yes; then expatprefix=; fi
else $as_nop
  expatprefix=; explicit_expat=no
fi


XML2CLICK=
if test "$expatprefix" != no; then
    saveflags="$CPPFLAGS"; test -n "$expatprefix" && CPPFLAGS="$CPPFLAGS -I$expatprefix/include"
    ac_fn_cxx_check_header_compile "$LINENO" "expat.h" "ac_cv_header_expat_h" "$ac_includes_default"
if test "x$ac_cv_header_expat_h" = xyes
then :
  have_expat_h=yes
else $as_nop
  have_expat_h=no
fi

    CPPFLAGS="$saveflags"

    ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

    saveflags="$LDFLAGS"; test -n "$expatprefix" && LDFLAGS="$LDFLAGS -L$expatprefix/lib"
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for XML_ParserCreateNS in -lexpat" >&5
printf %s "checking for XML_ParserCreateNS in -lexpat... " >&6; }
if test ${ac_cv_lib_expat_XML_ParserCreateNS+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lexpat  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
char XML_ParserCreateNS ();
int
main (void)
{
return XML_ParserCreateNS ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"
then :
  ac_cv_lib_expat_XML_ParserCreateNS=yes
else $as_nop
  ac_cv_lib_expat_XML_ParserCreateNS=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_expat_XML_ParserCreateNS" >&5
printf "%s\n" "$ac_cv_lib_expat_XML_ParserCreateNS" >&6; }
if test "x$ac_cv_lib_expat_XML_ParserCreateNS" = xyes
then :
  have_libexpat=yes
else $as_nop
  have_libexpat=no
fi

    LDFLAGS="$saveflags"

    if test $have_expat_h = yes -a $have_libexpat = yes; then
        printf "%s\n" "#define HAVE_EXPAT 1" >>confdefs.h

        XML2CLICK=xml2click
        test -n "$expatprefix" && EXPAT_INCLUDES="-I$expatprefix/include" && EXPAT_LIBS="-L$expatprefix/lib"
        EXPAT_LIBS="$EXPAT_LIBS -lexpat"
    elif test $explicit_expat = yes; then
        EXPAT_INCLUDES= EXPAT_LIBS=
        as_fn_error $? "
=========================================

You explicitly specified --with-expat, but the expat headers and/or libraries
are not where you said they would be.  Run again supplying --without-expat
or --with-expat=PREFIX.

=========================================" "$LINENO" 5
    fi
fi






if test $ac_have_linux_kernel = y; then

    save_cc="$CC"
    save_cxx="$CXX"
    save_cppflags="$CPPFLAGS"
    save_cflags="$CFLAGS"
    save_cxxflags="$CXXFLAGS"
    unset -v CFLAGS CPPFLAGS
    CC="$KERNEL_CC"
    CXX="$KERNEL_CXX"
    CXXFLAGS="$KERNEL_CXXFLAGS"

        linux_makeargs=
    if test -n "$ARCH"; then
        linux_makeargs="$linux_makeargs ARCH=$ARCH"
    fi
    if test -n "$CROSS_COMPILE"; then
        linux_makeargs="$linux_makeargs CROSS_COMPILE=$CROSS_COMPILE"
    elif test -n "$ac_tool_prefix"; then
        linux_makeargs="$linux_makeargs CROSS_COMPILE=$ac_tool_prefix"
    fi


        LINUX_DEBUG_FLAGS=
    if test -n "$LINUX_CFLAGS"; then
        :
    elif test $LINUXMODULE_2_6 = 1; then
        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for Linux kernel compilation flags" >&5
printf %s "checking for Linux kernel compilation flags... " >&6; }
        echo >conftest.c
        make -C $linux_builddir M="`pwd`" $linux_makeargs --no-print-directory -p conftest.o >conftest.dat 2>&1
        for v in KBUILD_CPPFLAGS KBUILD_CFLAGS CPPFLAGS CFLAGS LINUXINCLUDE debug_flags; do
            eval l$v="'""`grep ^$v' *:*=' conftest.dat | sed s/^$v' *:*= *//'`""'"
        done
        if test -z "$lKBUILD_CPPFLAGS$lKBUILD_CFLAGS$lCPPFLAGS$lCFLAGS$lLINUXINCLUDE"; then
            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: not found" >&5
printf "%s\n" "not found" >&6; }
            as_fn_error $? "
==============================================

Can't find Linux compilation flags.

==============================================" "$LINENO" 5
                    fi
        echo "$lCPPFLAGS $lCFLAGS $lLINUXINCLUDE $lKBUILD_CPPFLAGS $lKBUILD_CFLAGS" >conftest.dat
        LINUX_CFLAGS="`sed -e s,-Wno-pointer-sign,,g \
            -e s,-fno-unit-at-a-time,,g \
            -e s,-Wstrict-prototypes,,g \
            -e s,-Wdeclaration-after-statement,,g \
            -e s,-fno-common,,g \
            -e 's,-std=[-a-z0-9+]*,,g' \
            -e s,-Werror-implicit-function-declaration,,g \
            -e 's,-W[^ ]*,,g' <conftest.dat`"
        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $LINUX_CFLAGS" >&5
printf "%s\n" "$LINUX_CFLAGS" >&6; }
        LINUX_DEBUG_FLAGS="$ldebug_flags"
    fi

    LINUX_FIXINCLUDES_PROGRAM=
    CLICKLINUX_FIXINCLUDES_PROGRAM=
    if test "$LINUXMODULE_FIXINCLUDES" = 1; then
        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: making C++-safe versions of Linux kernel headers (may take a while)" >&5
printf "%s\n" "$as_me: making C++-safe versions of Linux kernel headers (may take a while)" >&6;}
        mydir="`pwd`"
        mysrcdir="$srcdir"
        if expr $mysrcdir : / >/dev/null; then :; else mysrcdir="$mydir/$srcdir"; fi
        (cd $linux_builddir; $mysrcdir/linuxmodule/click-linuxtool.pl -o "$mydir/include/click-linuxmodule" $LINUX_CFLAGS) >conftest.dat
        if test $? != 0; then
            as_fn_error $? "
==============================================

click-linuxtool.pl execution failed.

==============================================" "$LINENO" 5
        fi
        LINUX_CFLAGS="`head -n 1 conftest.dat`"
        LINUX_FIXINCLUDES_PROGRAM="| sed `tail -n 1 conftest.dat`"
        CLICKLINUX_FIXINCLUDES_PROGRAM="| sed `tail -n 1 conftest.dat | sed -e "s$tabchar$mydir/include/click-linuxmodule$tabchar$clickbuild_includedir/click-linuxmodule${tabchar}g"`"
    fi





    # -w inhibits warning messages to make debugging actual errors easier
    echo "$save_cppflags $LINUX_CFLAGS -w" >conftest.dat
    CPPFLAGS="`sed -e s,-Werror=strict-prototypes,, <conftest.dat`"


    # CLICK_LINUXMODULE_PROLOGUE()
    linux_autoconf_include=
    if test "$linux_version_code" -lt 132638; then

printf "%s\n" "#define HAVE_CHECK_AUTOCONF_INCLUDED 1" >>confdefs.h

        linux_autoconf_include="#if !defined(AUTOCONF_INCLUDED)
# include <linux/autoconf.h>
#endif
"
    fi



    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for C++-includable kernel header files" >&5
printf %s "checking for C++-includable kernel header files... " >&6; }
if test ${ac_cv_cxx_aware_system+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  ac_ext=cpp
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#define KBUILD_STR(s) #s
#define KBUILD_BASENAME KBUILD_STR(click)
#define KBUILD_MODNAME KBUILD_STR(click)
#define new linux_new
#define this linux_this
#define delete linux_delete
#define class linux_class
#define virtual linux_virtual
#define typename linux_typename
#define protected linux_protected
#define public linux_public
#define namespace linux_namespace
#define false linux_false
#define true linux_true
#define CLICK_CXX_PROTECTED 1
$linux_autoconf_include
#include <asm/types.h>
#include <linux/signal.h>
#include <linux/skbuff.h>
#include <linux/sched.h>
int
main (void)
{
return 0
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_cxx_aware_system=yes
else $as_nop
  ac_cv_cxx_aware_system=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext

fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cxx_aware_system" >&5
printf "%s\n" "$ac_cv_cxx_aware_system" >&6; }

    if test $ac_cv_cxx_aware_system = yes; then
        DRIVERS="$DRIVERS linuxmodule"
        TOOL_TARGETS="$TOOL_TARGETS click-install"
        printf "%s\n" "#define HAVE_LINUXMODULE_DRIVER 1" >>confdefs.h

        HAVE_LINUXMODULE_DRIVER=1
    elif test x$enable_linuxmodule_default = xyes; then
        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING:
=========================================

Your Linux kernel header files cause errors when included by a C++ program,
so I won't try to compile the linuxmodule driver.

Click modifies the Linux kernel's header files to make them work with
C++, using the program 'linuxmodule/click-linuxtool.pl'. It looks like
your kernel header files have features the tool doesn't know how to fix.
You can report this error to us via a Github issue, or, even better,
try to fix the error. See the config.log file for more information on the
error.

=========================================" >&5
printf "%s\n" "$as_me: WARNING:
=========================================

Your Linux kernel header files cause errors when included by a C++ program,
so I won't try to compile the linuxmodule driver.

Click modifies the Linux kernel's header files to make them work with
C++, using the program 'linuxmodule/click-linuxtool.pl'. It looks like
your kernel header files have features the tool doesn't know how to fix.
You can report this error to us via a Github issue, or, even better,
try to fix the error. See the config.log file for more information on the
error.

=========================================" >&2;}
            else
        as_fn_error $? "
=========================================

Your Linux kernel header files cause errors when included by a C++ program.

Click modifies the Linux kernel's header files to make them work with
C++, using the program 'linuxmodule/click-linuxtool.pl'. It looks like
your kernel header files have features that tool doesn't know how to fix.
You can report this error to us on the Click mailing list, or, even better,
try to fix the error. See the config.log file for more information on the
error.

=========================================" "$LINENO" 5
    fi

    # remove -w
    echo "$save_cppflags $LINUX_CFLAGS" >conftest.dat
    CPPFLAGS="`sed -e s,-Werror=strict-prototypes,,g <conftest.dat`"

    if test $ac_cv_cxx_aware_system = yes; then



    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether long and int64_t are the same type in the Linux kernel" >&5
printf %s "checking whether long and int64_t are the same type in the Linux kernel... " >&6; }
if test ${ac_cv_long_64_linuxmodule+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#define KBUILD_STR(s) #s
#define KBUILD_BASENAME KBUILD_STR(click)
#define KBUILD_MODNAME KBUILD_STR(click)
#define new linux_new
#define this linux_this
#define delete linux_delete
#define class linux_class
#define virtual linux_virtual
#define typename linux_typename
#define protected linux_protected
#define public linux_public
#define namespace linux_namespace
#define false linux_false
#define true linux_true
#define CLICK_CXX_PROTECTED 1
$linux_autoconf_include
#include <asm/types.h>
#include <linux/types.h>
void f1(long) {
}
void f1(int64_t) { // will fail if long and int64_t are the same type
}
int
main (void)
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_long_64_linuxmodule=no
else $as_nop
  ac_cv_long_64_linuxmodule=yes
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_long_64_linuxmodule" >&5
printf "%s\n" "$ac_cv_long_64_linuxmodule" >&6; }
    if test $ac_cv_long_64_linuxmodule = yes; then

printf "%s\n" "#define HAVE_INT64_IS_LONG_LINUXMODULE 1" >>confdefs.h

    fi

    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether long long and int64_t are the same type in the Linux kernel" >&5
printf %s "checking whether long long and int64_t are the same type in the Linux kernel... " >&6; }
if test ${ac_cv_long_long_64_linuxmodule+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#define KBUILD_STR(s) #s
#define KBUILD_BASENAME KBUILD_STR(click)
#define KBUILD_MODNAME KBUILD_STR(click)
#define new linux_new
#define this linux_this
#define delete linux_delete
#define class linux_class
#define virtual linux_virtual
#define typename linux_typename
#define protected linux_protected
#define public linux_public
#define namespace linux_namespace
#define false linux_false
#define true linux_true
#define CLICK_CXX_PROTECTED 1
$linux_autoconf_include
#include <asm/types.h>
#include <linux/types.h>
void f1(long long) {
}
void f1(int64_t) { // will fail if long long and int64_t are the same type
}
int
main (void)
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_long_long_64_linuxmodule=no
else $as_nop
  ac_cv_long_long_64_linuxmodule=yes
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_long_long_64_linuxmodule" >&5
printf "%s\n" "$ac_cv_long_long_64_linuxmodule" >&6; }
    if test $ac_cv_long_long_64_linuxmodule = yes; then

printf "%s\n" "#define HAVE_INT64_IS_LONG_LONG_LINUXMODULE 1" >>confdefs.h

    fi

    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether uintptr_t is defined in the Linux kernel" >&5
printf %s "checking whether uintptr_t is defined in the Linux kernel... " >&6; }
if test ${ac_cv_uintptr_t_linuxmodule+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#define KBUILD_STR(s) #s
#define KBUILD_BASENAME KBUILD_STR(click)
#define KBUILD_MODNAME KBUILD_STR(click)
#define new linux_new
#define this linux_this
#define delete linux_delete
#define class linux_class
#define virtual linux_virtual
#define typename linux_typename
#define protected linux_protected
#define public linux_public
#define namespace linux_namespace
#define false linux_false
#define true linux_true
#define CLICK_CXX_PROTECTED 1
$linux_autoconf_include
#include <asm/types.h>
#include <linux/types.h>

int
main (void)
{
uintptr_t i = 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_uintptr_t_linuxmodule=yes
else $as_nop
  ac_cv_uintptr_t_linuxmodule=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_uintptr_t_linuxmodule" >&5
printf "%s\n" "$ac_cv_uintptr_t_linuxmodule" >&6; }
    if test $ac_cv_uintptr_t_linuxmodule = yes; then

printf "%s\n" "#define HAVE_UINTPTR_T_LINUXMODULE 1" >>confdefs.h

    fi



    ac_fn_check_decl "$LINENO" "atomic_cmpxchg" "ac_cv_have_decl_atomic_cmpxchg" "#define KBUILD_STR(s) #s
#define KBUILD_BASENAME KBUILD_STR(click)
#define KBUILD_MODNAME KBUILD_STR(click)
#define new linux_new
#define this linux_this
#define delete linux_delete
#define class linux_class
#define virtual linux_virtual
#define typename linux_typename
#define protected linux_protected
#define public linux_public
#define namespace linux_namespace
#define false linux_false
#define true linux_true
#define CLICK_CXX_PROTECTED 1
$linux_autoconf_include
#include <asm/types.h>
#include <asm/atomic.h>
" "$ac_cxx_undeclared_builtin_options" "CXXFLAGS"
if test "x$ac_cv_have_decl_atomic_cmpxchg" = xyes
then :
  ac_cv_linux_atomic_cmpxchg=yes
else $as_nop
  ac_cv_linux_atomic_cmpxchg=no
fi
    if test $ac_cv_linux_atomic_cmpxchg = yes; then

printf "%s\n" "#define HAVE_LINUX_ATOMIC_CMPXCHG 1" >>confdefs.h

    fi

    ac_fn_check_decl "$LINENO" "atomic_set_mask" "ac_cv_have_decl_atomic_set_mask" "#define KBUILD_STR(s) #s
#define KBUILD_BASENAME KBUILD_STR(click)
#define KBUILD_MODNAME KBUILD_STR(click)
#define new linux_new
#define this linux_this
#define delete linux_delete
#define class linux_class
#define virtual linux_virtual
#define typename linux_typename
#define protected linux_protected
#define public linux_public
#define namespace linux_namespace
#define false linux_false
#define true linux_true
#define CLICK_CXX_PROTECTED 1
$linux_autoconf_include
#include <asm/types.h>
#include <asm/atomic.h>
" "$ac_cxx_undeclared_builtin_options" "CXXFLAGS"
if test "x$ac_cv_have_decl_atomic_set_mask" = xyes
then :
  ac_cv_linux_atomic_set_mask=yes
else $as_nop
  ac_cv_linux_atomic_set_mask=no
fi
    if test $ac_cv_linux_atomic_set_mask = yes; then

printf "%s\n" "#define HAVE_LINUX_ATOMIC_SET_MASK 1" >>confdefs.h

    fi

    ac_fn_check_decl "$LINENO" "atomic_add_return" "ac_cv_have_decl_atomic_add_return" "#define KBUILD_STR(s) #s
#define KBUILD_BASENAME KBUILD_STR(click)
#define KBUILD_MODNAME KBUILD_STR(click)
#define new linux_new
#define this linux_this
#define delete linux_delete
#define class linux_class
#define virtual linux_virtual
#define typename linux_typename
#define protected linux_protected
#define public linux_public
#define namespace linux_namespace
#define false linux_false
#define true linux_true
#define CLICK_CXX_PROTECTED 1
$linux_autoconf_include
#include <asm/types.h>
#include <asm/atomic.h>
" "$ac_cxx_undeclared_builtin_options" "CXXFLAGS"
if test "x$ac_cv_have_decl_atomic_add_return" = xyes
then :
  ac_cv_linux_atomic_add_return=yes
else $as_nop
  ac_cv_linux_atomic_add_return=no
fi
    if test $ac_cv_linux_atomic_add_return = yes; then

printf "%s\n" "#define HAVE_LINUX_ATOMIC_ADD_RETURN 1" >>confdefs.h

    fi

    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for <asm/alternative.h>" >&5
printf %s "checking for <asm/alternative.h>... " >&6; }
if test ${ac_cv_linux_asm_alternative_h+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#define KBUILD_STR(s) #s
#define KBUILD_BASENAME KBUILD_STR(click)
#define KBUILD_MODNAME KBUILD_STR(click)
#define new linux_new
#define this linux_this
#define delete linux_delete
#define class linux_class
#define virtual linux_virtual
#define typename linux_typename
#define protected linux_protected
#define public linux_public
#define namespace linux_namespace
#define false linux_false
#define true linux_true
#define CLICK_CXX_PROTECTED 1
$linux_autoconf_include
#include <asm/types.h>
#include <asm/alternative.h>
int
main (void)
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"
then :
  ac_cv_linux_asm_alternative_h=yes
else $as_nop
  ac_cv_linux_asm_alternative_h=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_linux_asm_alternative_h" >&5
printf "%s\n" "$ac_cv_linux_asm_alternative_h" >&6; }
    if test $ac_cv_linux_asm_alternative_h = yes; then

printf "%s\n" "#define HAVE_LINUX_ASM_ALTERNATIVE_H 1" >>confdefs.h

    fi

    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for <asm/scatterlist.h>" >&5
printf %s "checking for <asm/scatterlist.h>... " >&6; }
if test ${ac_cv_linux_asm_scatterlist_h+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#define KBUILD_STR(s) #s
#define KBUILD_BASENAME KBUILD_STR(click)
#define KBUILD_MODNAME KBUILD_STR(click)
#define new linux_new
#define this linux_this
#define delete linux_delete
#define class linux_class
#define virtual linux_virtual
#define typename linux_typename
#define protected linux_protected
#define public linux_public
#define namespace linux_namespace
#define false linux_false
#define true linux_true
#define CLICK_CXX_PROTECTED 1
$linux_autoconf_include
#include <asm/types.h>
#include <asm/scatterlist.h>
int
main (void)
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"
then :
  ac_cv_linux_asm_scatterlist_h=yes
else $as_nop
  ac_cv_linux_asm_scatterlist_h=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_linux_asm_scatterlist_h" >&5
printf "%s\n" "$ac_cv_linux_asm_scatterlist_h" >&6; }
    if test $ac_cv_linux_asm_scatterlist_h = yes; then

printf "%s\n" "#define HAVE_LINUX_ASM_SCATTERLIST_H 1" >>confdefs.h

    fi

    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for <asm/system.h>" >&5
printf %s "checking for <asm/system.h>... " >&6; }
if test ${ac_cv_linux_asm_system_h+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#define KBUILD_STR(s) #s
#define KBUILD_BASENAME KBUILD_STR(click)
#define KBUILD_MODNAME KBUILD_STR(click)
#define new linux_new
#define this linux_this
#define delete linux_delete
#define class linux_class
#define virtual linux_virtual
#define typename linux_typename
#define protected linux_protected
#define public linux_public
#define namespace linux_namespace
#define false linux_false
#define true linux_true
#define CLICK_CXX_PROTECTED 1
$linux_autoconf_include
#include <asm/types.h>
#include <asm/system.h>
int
main (void)
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"
then :
  ac_cv_linux_asm_system_h=yes
else $as_nop
  ac_cv_linux_asm_system_h=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_linux_asm_system_h" >&5
printf "%s\n" "$ac_cv_linux_asm_system_h" >&6; }
    if test $ac_cv_linux_asm_system_h = yes; then

printf "%s\n" "#define HAVE_LINUX_ASM_SYSTEM_H 1" >>confdefs.h

    fi

    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CC options needed to detect all undeclared functions" >&5
printf %s "checking for $CC options needed to detect all undeclared functions... " >&6; }
if test ${ac_cv_c_undeclared_builtin_options+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  ac_save_CFLAGS=$CFLAGS
   ac_cv_c_undeclared_builtin_options='cannot detect'
   for ac_arg in '' -fno-builtin; do
     CFLAGS="$ac_save_CFLAGS $ac_arg"
     # This test program should *not* compile successfully.
     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main (void)
{
(void) strchr;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"
then :

else $as_nop
  # This test program should compile successfully.
        # No library function is consistently available on
        # freestanding implementations, so test against a dummy
        # declaration.  Include always-available headers on the
        # off chance that they somehow elicit warnings.
        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <float.h>
#include <limits.h>
#include <stdarg.h>
#include <stddef.h>
extern void ac_decl (int, char *);

int
main (void)
{
(void) ac_decl (0, (char *) 0);
  (void) ac_decl;

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"
then :
  if test x"$ac_arg" = x
then :
  ac_cv_c_undeclared_builtin_options='none needed'
else $as_nop
  ac_cv_c_undeclared_builtin_options=$ac_arg
fi
          break
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
    done
    CFLAGS=$ac_save_CFLAGS

fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_undeclared_builtin_options" >&5
printf "%s\n" "$ac_cv_c_undeclared_builtin_options" >&6; }
  case $ac_cv_c_undeclared_builtin_options in #(
  'cannot detect') :
    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error $? "cannot make $CC report undeclared builtins
See \`config.log' for more details" "$LINENO" 5; } ;; #(
  'none needed') :
    ac_c_undeclared_builtin_options='' ;; #(
  *) :
    ac_c_undeclared_builtin_options=$ac_cv_c_undeclared_builtin_options ;;
esac

ac_fn_check_decl "$LINENO" "set_cpus_allowed_ptr" "ac_cv_have_decl_set_cpus_allowed_ptr" "#define KBUILD_STR(s) #s
#define KBUILD_BASENAME KBUILD_STR(click)
#define KBUILD_MODNAME KBUILD_STR(click)
#define new linux_new
#define this linux_this
#define delete linux_delete
#define class linux_class
#define virtual linux_virtual
#define typename linux_typename
#define protected linux_protected
#define public linux_public
#define namespace linux_namespace
#define false linux_false
#define true linux_true
#define CLICK_CXX_PROTECTED 1
$linux_autoconf_include
#include <asm/types.h>
#include <linux/sched.h>
" "$ac_c_undeclared_builtin_options" "CFLAGS"
if test "x$ac_cv_have_decl_set_cpus_allowed_ptr" = xyes
then :
  ac_cv_linux_set_cpus_allowed_ptr=yes
else $as_nop
  ac_cv_linux_set_cpus_allowed_ptr=no
fi
    if test $ac_cv_linux_set_cpus_allowed_ptr = yes; then

printf "%s\n" "#define HAVE_LINUX_SET_CPUS_ALLOWED_PTR 1" >>confdefs.h

    fi



    ac_ext=cpp
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether struct sk_buff has a security member" >&5
printf %s "checking whether struct sk_buff has a security member... " >&6; }
if test ${ac_cv_linuxmodule_skbuff_security+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#define KBUILD_STR(s) #s
#define KBUILD_BASENAME KBUILD_STR(click)
#define KBUILD_MODNAME KBUILD_STR(click)
#define new linux_new
#define this linux_this
#define delete linux_delete
#define class linux_class
#define virtual linux_virtual
#define typename linux_typename
#define protected linux_protected
#define public linux_public
#define namespace linux_namespace
#define false linux_false
#define true linux_true
#define CLICK_CXX_PROTECTED 1
$linux_autoconf_include
#include <asm/types.h>
#include <linux/skbuff.h>
int
main (void)
{
extern struct sk_buff *s; s->security = 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_linuxmodule_skbuff_security=yes
else $as_nop
  ac_cv_linuxmodule_skbuff_security=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_linuxmodule_skbuff_security" >&5
printf "%s\n" "$ac_cv_linuxmodule_skbuff_security" >&6; }
    if test $ac_cv_linuxmodule_skbuff_security = yes; then

printf "%s\n" "#define HAVE_LINUX_SKBUFF_SECURITY 1" >>confdefs.h

    fi

    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether struct sk_buff has an fclone member" >&5
printf %s "checking whether struct sk_buff has an fclone member... " >&6; }
if test ${ac_cv_linuxmodule_skbuff_fclone+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#define KBUILD_STR(s) #s
#define KBUILD_BASENAME KBUILD_STR(click)
#define KBUILD_MODNAME KBUILD_STR(click)
#define new linux_new
#define this linux_this
#define delete linux_delete
#define class linux_class
#define virtual linux_virtual
#define typename linux_typename
#define protected linux_protected
#define public linux_public
#define namespace linux_namespace
#define false linux_false
#define true linux_true
#define CLICK_CXX_PROTECTED 1
$linux_autoconf_include
#include <asm/types.h>
#include <linux/skbuff.h>
int
main (void)
{
extern struct sk_buff *s; s->fclone = 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_linuxmodule_skbuff_fclone=yes
else $as_nop
  ac_cv_linuxmodule_skbuff_fclone=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_linuxmodule_skbuff_fclone" >&5
printf "%s\n" "$ac_cv_linuxmodule_skbuff_fclone" >&6; }
    if test $ac_cv_linuxmodule_skbuff_fclone = yes; then

printf "%s\n" "#define HAVE_LINUX_SKBUFF_FCLONE 1" >>confdefs.h

    fi

    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether skb_shinfo has a tso_size member" >&5
printf %s "checking whether skb_shinfo has a tso_size member... " >&6; }
if test ${ac_cv_linuxmodule_skb_shinfo_tso_size+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#define KBUILD_STR(s) #s
#define KBUILD_BASENAME KBUILD_STR(click)
#define KBUILD_MODNAME KBUILD_STR(click)
#define new linux_new
#define this linux_this
#define delete linux_delete
#define class linux_class
#define virtual linux_virtual
#define typename linux_typename
#define protected linux_protected
#define public linux_public
#define namespace linux_namespace
#define false linux_false
#define true linux_true
#define CLICK_CXX_PROTECTED 1
$linux_autoconf_include
#include <asm/types.h>
#include <linux/skbuff.h>
int
main (void)
{
extern struct sk_buff *s; skb_shinfo(s)->tso_size = 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_linuxmodule_skb_shinfo_tso_size=yes
else $as_nop
  ac_cv_linuxmodule_skb_shinfo_tso_size=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_linuxmodule_skb_shinfo_tso_size" >&5
printf "%s\n" "$ac_cv_linuxmodule_skb_shinfo_tso_size" >&6; }
    if test $ac_cv_linuxmodule_skb_shinfo_tso_size = yes; then

printf "%s\n" "#define HAVE_LINUX_SKB_SHINFO_TSO_SIZE 1" >>confdefs.h

    fi

    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether skb_shinfo has a gso_size member" >&5
printf %s "checking whether skb_shinfo has a gso_size member... " >&6; }
if test ${ac_cv_linuxmodule_skb_shinfo_gso_size+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#define KBUILD_STR(s) #s
#define KBUILD_BASENAME KBUILD_STR(click)
#define KBUILD_MODNAME KBUILD_STR(click)
#define new linux_new
#define this linux_this
#define delete linux_delete
#define class linux_class
#define virtual linux_virtual
#define typename linux_typename
#define protected linux_protected
#define public linux_public
#define namespace linux_namespace
#define false linux_false
#define true linux_true
#define CLICK_CXX_PROTECTED 1
$linux_autoconf_include
#include <asm/types.h>
#include <linux/skbuff.h>
int
main (void)
{
extern struct sk_buff *s; skb_shinfo(s)->gso_size = 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_linuxmodule_skb_shinfo_gso_size=yes
else $as_nop
  ac_cv_linuxmodule_skb_shinfo_gso_size=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_linuxmodule_skb_shinfo_gso_size" >&5
printf "%s\n" "$ac_cv_linuxmodule_skb_shinfo_gso_size" >&6; }
    if test $ac_cv_linuxmodule_skb_shinfo_gso_size = yes; then

printf "%s\n" "#define HAVE_LINUX_SKB_SHINFO_GSO_SIZE 1" >>confdefs.h

    fi

    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether skb_shinfo has a ufo_size member" >&5
printf %s "checking whether skb_shinfo has a ufo_size member... " >&6; }
if test ${ac_cv_linuxmodule_skb_shinfo_ufo_size+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#define KBUILD_STR(s) #s
#define KBUILD_BASENAME KBUILD_STR(click)
#define KBUILD_MODNAME KBUILD_STR(click)
#define new linux_new
#define this linux_this
#define delete linux_delete
#define class linux_class
#define virtual linux_virtual
#define typename linux_typename
#define protected linux_protected
#define public linux_public
#define namespace linux_namespace
#define false linux_false
#define true linux_true
#define CLICK_CXX_PROTECTED 1
$linux_autoconf_include
#include <asm/types.h>
#include <linux/skbuff.h>
int
main (void)
{
extern struct sk_buff *s; skb_shinfo(s)->ufo_size = 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_linuxmodule_skb_shinfo_ufo_size=yes
else $as_nop
  ac_cv_linuxmodule_skb_shinfo_ufo_size=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_linuxmodule_skb_shinfo_ufo_size" >&5
printf "%s\n" "$ac_cv_linuxmodule_skb_shinfo_ufo_size" >&6; }
    if test $ac_cv_linuxmodule_skb_shinfo_ufo_size = yes; then

printf "%s\n" "#define HAVE_LINUX_SKB_SHINFO_UFO_SIZE 1" >>confdefs.h

    fi

    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether skb_shinfo has an ip6_frag_id member" >&5
printf %s "checking whether skb_shinfo has an ip6_frag_id member... " >&6; }
if test ${ac_cv_linuxmodule_skb_shinfo_ip6_frag_id+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#define KBUILD_STR(s) #s
#define KBUILD_BASENAME KBUILD_STR(click)
#define KBUILD_MODNAME KBUILD_STR(click)
#define new linux_new
#define this linux_this
#define delete linux_delete
#define class linux_class
#define virtual linux_virtual
#define typename linux_typename
#define protected linux_protected
#define public linux_public
#define namespace linux_namespace
#define false linux_false
#define true linux_true
#define CLICK_CXX_PROTECTED 1
$linux_autoconf_include
#include <asm/types.h>
#include <linux/skbuff.h>
int
main (void)
{
extern struct sk_buff *s; skb_shinfo(s)->ip6_frag_id = 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_linuxmodule_skb_shinfo_ip6_frag_id=yes
else $as_nop
  ac_cv_linuxmodule_skb_shinfo_ip6_frag_id=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_linuxmodule_skb_shinfo_ip6_frag_id" >&5
printf "%s\n" "$ac_cv_linuxmodule_skb_shinfo_ip6_frag_id" >&6; }
    if test $ac_cv_linuxmodule_skb_shinfo_ip6_frag_id = yes; then

printf "%s\n" "#define HAVE_LINUX_SKB_SHINFO_IP6_FRAG_ID 1" >>confdefs.h

    fi

    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether skb_shinfo has tx_flags defining SKBTX_DEV_ZEROCOPY" >&5
printf %s "checking whether skb_shinfo has tx_flags defining SKBTX_DEV_ZEROCOPY... " >&6; }
if test ${ac_cv_linuxmodule_skb_shinfo_tx_flags_skbtx_dev_zerocopy+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#define KBUILD_STR(s) #s
#define KBUILD_BASENAME KBUILD_STR(click)
#define KBUILD_MODNAME KBUILD_STR(click)
#define new linux_new
#define this linux_this
#define delete linux_delete
#define class linux_class
#define virtual linux_virtual
#define typename linux_typename
#define protected linux_protected
#define public linux_public
#define namespace linux_namespace
#define false linux_false
#define true linux_true
#define CLICK_CXX_PROTECTED 1
$linux_autoconf_include
#include <asm/types.h>
#include <linux/skbuff.h>
int
main (void)
{
extern struct sk_buff *s; skb_shinfo(s)->tx_flags = SKBTX_DEV_ZEROCOPY;
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_linuxmodule_skb_shinfo_tx_flags_skbtx_dev_zerocopy=yes
else $as_nop
  ac_cv_linuxmodule_skb_shinfo_tx_flags_skbtx_dev_zerocopy=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_linuxmodule_skb_shinfo_tx_flags_skbtx_dev_zerocopy" >&5
printf "%s\n" "$ac_cv_linuxmodule_skb_shinfo_tx_flags_skbtx_dev_zerocopy" >&6; }
    if test $ac_cv_linuxmodule_skb_shinfo_tx_flags_skbtx_dev_zerocopy = yes; then

printf "%s\n" "#define HAVE_LINUX_SKB_SHINFO_TX_FLAGS_SKBTX_DEV_ZEROCOPY 1" >>confdefs.h

    fi

    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether skb_shinfo has a tx_flags union" >&5
printf %s "checking whether skb_shinfo has a tx_flags union... " >&6; }
if test ${ac_cv_linuxmodule_skb_shinfo_tx_flags_union+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#define KBUILD_STR(s) #s
#define KBUILD_BASENAME KBUILD_STR(click)
#define KBUILD_MODNAME KBUILD_STR(click)
#define new linux_new
#define this linux_this
#define delete linux_delete
#define class linux_class
#define virtual linux_virtual
#define typename linux_typename
#define protected linux_protected
#define public linux_public
#define namespace linux_namespace
#define false linux_false
#define true linux_true
#define CLICK_CXX_PROTECTED 1
$linux_autoconf_include
#include <asm/types.h>
#include <linux/skbuff.h>
int
main (void)
{
extern struct sk_buff *s; skb_shinfo(s)->tx_flags.flags = 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_linuxmodule_skb_shinfo_tx_flags_union=yes
else $as_nop
  ac_cv_linuxmodule_skb_shinfo_tx_flags_union=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_linuxmodule_skb_shinfo_tx_flags_union" >&5
printf "%s\n" "$ac_cv_linuxmodule_skb_shinfo_tx_flags_union" >&6; }
    if test $ac_cv_linuxmodule_skb_shinfo_tx_flags_union = yes; then

printf "%s\n" "#define HAVE_LINUX_SKB_SHINFO_TX_FLAGS_UNION 1" >>confdefs.h

    fi

    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for device polling kernel extension" >&5
printf %s "checking for device polling kernel extension... " >&6; }
if test ${ac_cv_linuxmodule_net_device_polling+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#define KBUILD_STR(s) #s
#define KBUILD_BASENAME KBUILD_STR(click)
#define KBUILD_MODNAME KBUILD_STR(click)
#define new linux_new
#define this linux_this
#define delete linux_delete
#define class linux_class
#define virtual linux_virtual
#define typename linux_typename
#define protected linux_protected
#define public linux_public
#define namespace linux_namespace
#define false linux_false
#define true linux_true
#define CLICK_CXX_PROTECTED 1
$linux_autoconf_include
#include <asm/types.h>
#include <linux/netdevice.h>
int
main (void)
{
extern struct net_device *d; d->polling = 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_linuxmodule_net_device_polling=yes
else $as_nop
  ac_cv_linuxmodule_net_device_polling=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_linuxmodule_net_device_polling" >&5
printf "%s\n" "$ac_cv_linuxmodule_net_device_polling" >&6; }
    if test $ac_cv_linuxmodule_net_device_polling = yes; then

printf "%s\n" "#define HAVE_LINUX_POLLING 1" >>confdefs.h

    fi

    ac_fn_check_decl "$LINENO" "skb_dst_drop" "ac_cv_have_decl_skb_dst_drop" "#define KBUILD_STR(s) #s
#define KBUILD_BASENAME KBUILD_STR(click)
#define KBUILD_MODNAME KBUILD_STR(click)
#define new linux_new
#define this linux_this
#define delete linux_delete
#define class linux_class
#define virtual linux_virtual
#define typename linux_typename
#define protected linux_protected
#define public linux_public
#define namespace linux_namespace
#define false linux_false
#define true linux_true
#define CLICK_CXX_PROTECTED 1
$linux_autoconf_include
#include <asm/types.h>
#include <net/dst.h>
" "$ac_cxx_undeclared_builtin_options" "CXXFLAGS"
if test "x$ac_cv_have_decl_skb_dst_drop" = xyes
then :
  ac_cv_skb_dst_drop=yes
else $as_nop
  ac_cv_skb_dst_drop=no
fi
    if test $ac_cv_skb_dst_drop = yes; then

printf "%s\n" "#define HAVE_SKB_DST_DROP 1" >>confdefs.h

    fi

    ac_fn_check_decl "$LINENO" "skb_recycle" "ac_cv_have_decl_skb_recycle" "#define KBUILD_STR(s) #s
#define KBUILD_BASENAME KBUILD_STR(click)
#define KBUILD_MODNAME KBUILD_STR(click)
#define new linux_new
#define this linux_this
#define delete linux_delete
#define class linux_class
#define virtual linux_virtual
#define typename linux_typename
#define protected linux_protected
#define public linux_public
#define namespace linux_namespace
#define false linux_false
#define true linux_true
#define CLICK_CXX_PROTECTED 1
$linux_autoconf_include
#include <asm/types.h>
#include <linux/skbuff.h>
" "$ac_cxx_undeclared_builtin_options" "CXXFLAGS"
if test "x$ac_cv_have_decl_skb_recycle" = xyes
then :
  ac_cv_skb_recycle=yes
else $as_nop
  ac_cv_skb_recycle=no
fi
    if test $ac_cv_skb_recycle = yes; then

printf "%s\n" "#define HAVE_SKB_RECYCLE 1" >>confdefs.h

    fi

    ac_fn_check_decl "$LINENO" "skb_recycle_check" "ac_cv_have_decl_skb_recycle_check" "#define KBUILD_STR(s) #s
#define KBUILD_BASENAME KBUILD_STR(click)
#define KBUILD_MODNAME KBUILD_STR(click)
#define new linux_new
#define this linux_this
#define delete linux_delete
#define class linux_class
#define virtual linux_virtual
#define typename linux_typename
#define protected linux_protected
#define public linux_public
#define namespace linux_namespace
#define false linux_false
#define true linux_true
#define CLICK_CXX_PROTECTED 1
$linux_autoconf_include
#include <asm/types.h>
#include <linux/skbuff.h>
" "$ac_cxx_undeclared_builtin_options" "CXXFLAGS"
if test "x$ac_cv_have_decl_skb_recycle_check" = xyes
then :
  ac_cv_skb_recycle_check=yes
else $as_nop
  ac_cv_skb_recycle_check=no
fi
    if test $ac_cv_skb_recycle_check = yes; then

printf "%s\n" "#define HAVE_SKB_RECYCLE_CHECK 1" >>confdefs.h

    fi

save_cflags="$CFLAGS"
CFLAGS="$save_cflags -Werror-implicit-function-declaration"

    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether skb_recycle returns an sk_buff" >&5
printf %s "checking whether skb_recycle returns an sk_buff... " >&6; }
if test ${ac_cv_linuxmodule_click_skb_recycle+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#define KBUILD_STR(s) #s
#define KBUILD_BASENAME KBUILD_STR(click)
#define KBUILD_MODNAME KBUILD_STR(click)
#define new linux_new
#define this linux_this
#define delete linux_delete
#define class linux_class
#define virtual linux_virtual
#define typename linux_typename
#define protected linux_protected
#define public linux_public
#define namespace linux_namespace
#define false linux_false
#define true linux_true
#define CLICK_CXX_PROTECTED 1
$linux_autoconf_include
#include <asm/types.h>
#include <linux/skbuff.h>
int
main (void)
{
extern struct sk_buff *b; b = skb_recycle(b);
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_linuxmodule_click_skb_recycle=yes
else $as_nop
  ac_cv_linuxmodule_click_skb_recycle=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_linuxmodule_click_skb_recycle" >&5
printf "%s\n" "$ac_cv_linuxmodule_click_skb_recycle" >&6; }
    if test $ac_cv_linuxmodule_click_skb_recycle = yes; then

printf "%s\n" "#define HAVE_CLICK_SKB_RECYCLE 1" >>confdefs.h

    fi

CFLAGS="$save_cflags"

    ac_fn_check_decl "$LINENO" "skb_linearize" "ac_cv_have_decl_skb_linearize" "#define KBUILD_STR(s) #s
#define KBUILD_BASENAME KBUILD_STR(click)
#define KBUILD_MODNAME KBUILD_STR(click)
#define new linux_new
#define this linux_this
#define delete linux_delete
#define class linux_class
#define virtual linux_virtual
#define typename linux_typename
#define protected linux_protected
#define public linux_public
#define namespace linux_namespace
#define false linux_false
#define true linux_true
#define CLICK_CXX_PROTECTED 1
$linux_autoconf_include
#include <asm/types.h>
#include <linux/skbuff.h>
" "$ac_cxx_undeclared_builtin_options" "CXXFLAGS"
if test "x$ac_cv_have_decl_skb_linearize" = xyes
then :
  ac_cv_skb_linearize=yes
else $as_nop
  ac_cv_skb_linearize=no
fi
    if test $ac_cv_skb_linearize = yes; then

printf "%s\n" "#define HAVE_SKB_LINEARIZE 1" >>confdefs.h

    fi

    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether netif_receive_skb has been extended" >&5
printf %s "checking whether netif_receive_skb has been extended... " >&6; }
if test ${ac_cv_linuxmodule_netif_receive_skb_extended+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#define KBUILD_STR(s) #s
#define KBUILD_BASENAME KBUILD_STR(click)
#define KBUILD_MODNAME KBUILD_STR(click)
#define new linux_new
#define this linux_this
#define delete linux_delete
#define class linux_class
#define virtual linux_virtual
#define typename linux_typename
#define protected linux_protected
#define public linux_public
#define namespace linux_namespace
#define false linux_false
#define true linux_true
#define CLICK_CXX_PROTECTED 1
$linux_autoconf_include
#include <asm/types.h>
#include <linux/netdevice.h>
int
main (void)
{
netif_receive_skb(0, 0, 0);
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"
then :
  ac_cv_linuxmodule_netif_receive_skb_extended=yes
else $as_nop
  ac_cv_linuxmodule_netif_receive_skb_extended=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_linuxmodule_netif_receive_skb_extended" >&5
printf "%s\n" "$ac_cv_linuxmodule_netif_receive_skb_extended" >&6; }
    if test $ac_cv_linuxmodule_netif_receive_skb_extended = yes; then

printf "%s\n" "#define HAVE_NETIF_RECEIVE_SKB_EXTENDED 1" >>confdefs.h

    fi

    ac_fn_check_decl "$LINENO" "net_enable_timestamp" "ac_cv_have_decl_net_enable_timestamp" "#define KBUILD_STR(s) #s
#define KBUILD_BASENAME KBUILD_STR(click)
#define KBUILD_MODNAME KBUILD_STR(click)
#define new linux_new
#define this linux_this
#define delete linux_delete
#define class linux_class
#define virtual linux_virtual
#define typename linux_typename
#define protected linux_protected
#define public linux_public
#define namespace linux_namespace
#define false linux_false
#define true linux_true
#define CLICK_CXX_PROTECTED 1
$linux_autoconf_include
#include <asm/types.h>
#include <linux/skbuff.h>
#include <linux/netdevice.h>
" "$ac_cxx_undeclared_builtin_options" "CXXFLAGS"
if test "x$ac_cv_have_decl_net_enable_timestamp" = xyes
then :
  ac_cv_net_enable_timestamp=yes
else $as_nop
  ac_cv_net_enable_timestamp=no
fi
    if test $ac_cv_net_enable_timestamp = yes; then

printf "%s\n" "#define HAVE_NET_ENABLE_TIMESTAMP 1" >>confdefs.h

    fi

    ac_fn_check_decl "$LINENO" "netif_tx_lock" "ac_cv_have_decl_netif_tx_lock" "#define KBUILD_STR(s) #s
#define KBUILD_BASENAME KBUILD_STR(click)
#define KBUILD_MODNAME KBUILD_STR(click)
#define new linux_new
#define this linux_this
#define delete linux_delete
#define class linux_class
#define virtual linux_virtual
#define typename linux_typename
#define protected linux_protected
#define public linux_public
#define namespace linux_namespace
#define false linux_false
#define true linux_true
#define CLICK_CXX_PROTECTED 1
$linux_autoconf_include
#include <asm/types.h>
#include <linux/skbuff.h>
#include <linux/netdevice.h>
" "$ac_cxx_undeclared_builtin_options" "CXXFLAGS"
if test "x$ac_cv_have_decl_netif_tx_lock" = xyes
then :
  ac_cv_netif_tx_lock=yes
else $as_nop
  ac_cv_netif_tx_lock=no
fi
    if test $ac_cv_netif_tx_lock = yes; then

printf "%s\n" "#define HAVE_NETIF_TX_LOCK 1" >>confdefs.h

    fi

    ac_fn_check_decl "$LINENO" "netdev_get_tx_queue" "ac_cv_have_decl_netdev_get_tx_queue" "#define KBUILD_STR(s) #s
#define KBUILD_BASENAME KBUILD_STR(click)
#define KBUILD_MODNAME KBUILD_STR(click)
#define new linux_new
#define this linux_this
#define delete linux_delete
#define class linux_class
#define virtual linux_virtual
#define typename linux_typename
#define protected linux_protected
#define public linux_public
#define namespace linux_namespace
#define false linux_false
#define true linux_true
#define CLICK_CXX_PROTECTED 1
$linux_autoconf_include
#include <asm/types.h>
#include <linux/skbuff.h>
#include <linux/netdevice.h>
" "$ac_cxx_undeclared_builtin_options" "CXXFLAGS"
if test "x$ac_cv_have_decl_netdev_get_tx_queue" = xyes
then :
  ac_cv_netdev_get_tx_queue=yes
else $as_nop
  ac_cv_netdev_get_tx_queue=no
fi
    if test $ac_cv_netdev_get_tx_queue = yes; then

printf "%s\n" "#define HAVE_NETDEV_GET_TX_QUEUE 1" >>confdefs.h

    fi

    ac_fn_check_decl "$LINENO" "netif_tx_queue_frozen" "ac_cv_have_decl_netif_tx_queue_frozen" "#define KBUILD_STR(s) #s
#define KBUILD_BASENAME KBUILD_STR(click)
#define KBUILD_MODNAME KBUILD_STR(click)
#define new linux_new
#define this linux_this
#define delete linux_delete
#define class linux_class
#define virtual linux_virtual
#define typename linux_typename
#define protected linux_protected
#define public linux_public
#define namespace linux_namespace
#define false linux_false
#define true linux_true
#define CLICK_CXX_PROTECTED 1
$linux_autoconf_include
#include <asm/types.h>
#include <linux/skbuff.h>
#include <linux/netdevice.h>
" "$ac_cxx_undeclared_builtin_options" "CXXFLAGS"
if test "x$ac_cv_have_decl_netif_tx_queue_frozen" = xyes
then :
  ac_cv_netif_tx_queue_frozen=yes
else $as_nop
  ac_cv_netif_tx_queue_frozen=no
fi
    if test $ac_cv_netif_tx_queue_frozen = yes; then

printf "%s\n" "#define HAVE_NETIF_TX_QUEUE_FROZEN 1" >>confdefs.h

    fi

    ac_fn_check_decl "$LINENO" "netdev_uses_dsa_tags" "ac_cv_have_decl_netdev_uses_dsa_tags" "#define KBUILD_STR(s) #s
#define KBUILD_BASENAME KBUILD_STR(click)
#define KBUILD_MODNAME KBUILD_STR(click)
#define new linux_new
#define this linux_this
#define delete linux_delete
#define class linux_class
#define virtual linux_virtual
#define typename linux_typename
#define protected linux_protected
#define public linux_public
#define namespace linux_namespace
#define false linux_false
#define true linux_true
#define CLICK_CXX_PROTECTED 1
$linux_autoconf_include
#include <asm/types.h>
#include <linux/skbuff.h>
#include <linux/netdevice.h>
" "$ac_cxx_undeclared_builtin_options" "CXXFLAGS"
if test "x$ac_cv_have_decl_netdev_uses_dsa_tags" = xyes
then :
  ac_cv_netdev_uses_dsa_tags=yes
else $as_nop
  ac_cv_netdev_uses_dsa_tags=no
fi
    if test $ac_cv_netdev_uses_dsa_tags = yes; then

printf "%s\n" "#define HAVE_NETDEV_USES_DSA_TAGS 1" >>confdefs.h

    fi

    ac_fn_check_decl "$LINENO" "netdev_uses_trailer_tags" "ac_cv_have_decl_netdev_uses_trailer_tags" "#define KBUILD_STR(s) #s
#define KBUILD_BASENAME KBUILD_STR(click)
#define KBUILD_MODNAME KBUILD_STR(click)
#define new linux_new
#define this linux_this
#define delete linux_delete
#define class linux_class
#define virtual linux_virtual
#define typename linux_typename
#define protected linux_protected
#define public linux_public
#define namespace linux_namespace
#define false linux_false
#define true linux_true
#define CLICK_CXX_PROTECTED 1
$linux_autoconf_include
#include <asm/types.h>
#include <linux/skbuff.h>
#include <linux/netdevice.h>
" "$ac_cxx_undeclared_builtin_options" "CXXFLAGS"
if test "x$ac_cv_have_decl_netdev_uses_trailer_tags" = xyes
then :
  ac_cv_netdev_uses_trailer_tags=yes
else $as_nop
  ac_cv_netdev_uses_trailer_tags=no
fi
    if test $ac_cv_netdev_uses_trailer_tags = yes; then

printf "%s\n" "#define HAVE_NETDEV_USES_TRAILER_TAGS 1" >>confdefs.h

    fi

    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for netdev_rx_handler_register kernel symbol" >&5
printf %s "checking for netdev_rx_handler_register kernel symbol... " >&6; }
if test ${ac_cv_linux_netdev_rx_handler_register+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if grep "__ksymtab_netdev_rx_handler_register" $linux_system_map >/dev/null 2>&1; then
        ac_cv_linux_netdev_rx_handler_register=yes
    else ac_cv_linux_netdev_rx_handler_register=no; fi
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_linux_netdev_rx_handler_register" >&5
printf "%s\n" "$ac_cv_linux_netdev_rx_handler_register" >&6; }
    if test $ac_cv_linux_netdev_rx_handler_register = yes; then
        printf "%s\n" "#define HAVE_LINUX_NETDEV_RX_HANDLER_REGISTER 1" >>confdefs.h

    fi



    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for get_monotonic_coarse kernel symbol" >&5
printf %s "checking for get_monotonic_coarse kernel symbol... " >&6; }
if test ${ac_cv_linux_get_monotonic_coarse+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if grep '__ksymtab_get_monotonic_coarse$' $linux_system_map >/dev/null 2>&1; then
        ac_cv_linux_get_monotonic_coarse=yes
    else ac_cv_linux_get_monotonic_coarse=no; fi
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_linux_get_monotonic_coarse" >&5
printf "%s\n" "$ac_cv_linux_get_monotonic_coarse" >&6; }
    if test $ac_cv_linux_get_monotonic_coarse = yes; then
        printf "%s\n" "#define HAVE_LINUX_GET_MONOTONIC_COARSE 1" >>confdefs.h

    fi

    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for ktime_mono_to_any kernel symbol" >&5
printf %s "checking for ktime_mono_to_any kernel symbol... " >&6; }
if test ${ac_cv_linux_ktime_mono_to_any+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if grep '__ksymtab_ktime_mono_to_any$' $linux_system_map >/dev/null 2>&1; then
        ac_cv_linux_ktime_mono_to_any=yes
    else ac_cv_linux_ktime_mono_to_any=no; fi
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_linux_ktime_mono_to_any" >&5
printf "%s\n" "$ac_cv_linux_ktime_mono_to_any" >&6; }
    if test $ac_cv_linux_ktime_mono_to_any = yes; then
        printf "%s\n" "#define HAVE_LINUX_KTIME_MONO_TO_ANY 1" >>confdefs.h

    fi

    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for getboottime kernel symbol" >&5
printf %s "checking for getboottime kernel symbol... " >&6; }
if test ${ac_cv_linux_getboottime+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if grep "__ksymtab_getboottime" $linux_system_map >/dev/null 2>&1; then
        ac_cv_linux_getboottime=yes
    else ac_cv_linux_getboottime=no; fi
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_linux_getboottime" >&5
printf "%s\n" "$ac_cv_linux_getboottime" >&6; }
    if test $ac_cv_linux_getboottime = yes; then
        printf "%s\n" "#define HAVE_LINUX_GETBOOTTIME 1" >>confdefs.h

    fi



    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether struct super_block has an s_d_op member" >&5
printf %s "checking whether struct super_block has an s_d_op member... " >&6; }
if test ${ac_cv_linuxmodule_super_block_s_d_op+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#define KBUILD_STR(s) #s
#define KBUILD_BASENAME KBUILD_STR(click)
#define KBUILD_MODNAME KBUILD_STR(click)
#define new linux_new
#define this linux_this
#define delete linux_delete
#define class linux_class
#define virtual linux_virtual
#define typename linux_typename
#define protected linux_protected
#define public linux_public
#define namespace linux_namespace
#define false linux_false
#define true linux_true
#define CLICK_CXX_PROTECTED 1
$linux_autoconf_include
#include <asm/types.h>
#include <linux/fs.h>
int
main (void)
{
extern struct super_block *sb; sb->s_d_op = 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"
then :
  ac_cv_linuxmodule_super_block_s_d_op=yes
else $as_nop
  ac_cv_linuxmodule_super_block_s_d_op=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_linuxmodule_super_block_s_d_op" >&5
printf "%s\n" "$ac_cv_linuxmodule_super_block_s_d_op" >&6; }
    if test $ac_cv_linuxmodule_super_block_s_d_op = yes; then

printf "%s\n" "#define HAVE_LINUX_SUPER_BLOCK_S_D_OP 1" >>confdefs.h

    fi

    ac_fn_check_decl "$LINENO" "d_make_root" "ac_cv_have_decl_d_make_root" "#define KBUILD_STR(s) #s
#define KBUILD_BASENAME KBUILD_STR(click)
#define KBUILD_MODNAME KBUILD_STR(click)
#define new linux_new
#define this linux_this
#define delete linux_delete
#define class linux_class
#define virtual linux_virtual
#define typename linux_typename
#define protected linux_protected
#define public linux_public
#define namespace linux_namespace
#define false linux_false
#define true linux_true
#define CLICK_CXX_PROTECTED 1
$linux_autoconf_include
#include <asm/types.h>
#include <linux/fs.h>
#include <linux/dcache.h>
" "$ac_c_undeclared_builtin_options" "CFLAGS"
if test "x$ac_cv_have_decl_d_make_root" = xyes
then :
  ac_cv_linux_d_make_root=yes
else $as_nop
  ac_cv_linux_d_make_root=no
fi
    if test $ac_cv_linux_d_make_root = yes; then

printf "%s\n" "#define HAVE_LINUX_D_MAKE_ROOT 1" >>confdefs.h

    fi

    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether struct dentry has a d_child member" >&5
printf %s "checking whether struct dentry has a d_child member... " >&6; }
if test ${ac_cv_linuxmodule_dentry_d_child+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#define KBUILD_STR(s) #s
#define KBUILD_BASENAME KBUILD_STR(click)
#define KBUILD_MODNAME KBUILD_STR(click)
#define new linux_new
#define this linux_this
#define delete linux_delete
#define class linux_class
#define virtual linux_virtual
#define typename linux_typename
#define protected linux_protected
#define public linux_public
#define namespace linux_namespace
#define false linux_false
#define true linux_true
#define CLICK_CXX_PROTECTED 1
$linux_autoconf_include
#include <asm/types.h>
#include <linux/fs.h>
#include <linux/dcache.h>
int
main (void)
{
extern struct dentry* de; de->d_child.next = 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"
then :
  ac_cv_linuxmodule_dentry_d_child=yes
else $as_nop
  ac_cv_linuxmodule_dentry_d_child=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_linuxmodule_dentry_d_child" >&5
printf "%s\n" "$ac_cv_linuxmodule_dentry_d_child" >&6; }
    if test $ac_cv_linuxmodule_dentry_d_child = yes; then

printf "%s\n" "#define HAVE_LINUX_DENTRY_D_CHILD 1" >>confdefs.h

    fi

    fi
    CC="$save_cc"
    CXX="$save_cxx"
    CPPFLAGS="$save_cppflags"
    CFLAGS="$save_cflags"
    CXXFLAGS="$save_cxxflags"
    export CFLAGS CPPFLAGS
fi



if test $ac_have_bsd_kernel = y; then
    DRIVERS="$DRIVERS bsdmodule"
    if echo "$DRIVERS" | grep linuxmodule >/dev/null 2>&1; then :; else
        TOOL_TARGETS="$TOOL_TARGETS click-install"
    fi
    printf "%s\n" "#define HAVE_BSDMODULE_DRIVER 1" >>confdefs.h

    HAVE_BSDMODULE_DRIVER=1
fi



if test "x$enable_nsclick" = xyes; then
    DRIVERS="$DRIVERS ns"
fi



if test "x$enable_minios" = xyes; then
    DRIVERS="$DRIVERS minios"
    printf "%s\n" "#define HAVE_MINIOS_DRIVER 1" >>confdefs.h

    HAVE_MINIOS_DRIVER=1
fi



if test "x$enable_tools" != xno; then
    OTHER_TARGETS="$OTHER_TARGETS tools"
fi




  # Find a good install program.  We prefer a C program (faster),
# so one script is as good as another.  But avoid the broken or
# incompatible versions:
# SysV /etc/install, /usr/sbin/install
# SunOS /usr/etc/install
# IRIX /sbin/install
# AIX /bin/install
# AmigaOS /C/install, which installs bootblocks on floppy discs
# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag
# AFS /usr/afsws/bin/install, which mishandles nonexistent args
# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
# OS/2's system install, which has a completely different semantic
# ./install, which can be erroneously created by make from ./install.sh.
# Reject install programs that cannot install multiple files.
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for a BSD-compatible install" >&5
printf %s "checking for a BSD-compatible install... " >&6; }
if test -z "$INSTALL"; then
if test ${ac_cv_path_install+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    # Account for fact that we put trailing slashes in our PATH walk.
case $as_dir in #((
  ./ | /[cC]/* | \
  /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \
  ?:[\\/]os2[\\/]install[\\/]* | ?:[\\/]OS2[\\/]INSTALL[\\/]* | \
  /usr/ucb/* ) ;;
  *)
    # OSF1 and SCO ODT 3.0 have their own names for install.
    # Don't use installbsd from OSF since it installs stuff as root
    # by default.
    for ac_prog in ginstall scoinst install; do
      for ac_exec_ext in '' $ac_executable_extensions; do
	if as_fn_executable_p "$as_dir$ac_prog$ac_exec_ext"; then
	  if test $ac_prog = install &&
	    grep dspmsg "$as_dir$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
	    # AIX install.  It has an incompatible calling convention.
	    :
	  elif test $ac_prog = install &&
	    grep pwplus "$as_dir$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
	    # program-specific install script used by HP pwplus--don't use.
	    :
	  else
	    rm -rf conftest.one conftest.two conftest.dir
	    echo one > conftest.one
	    echo two > conftest.two
	    mkdir conftest.dir
	    if "$as_dir$ac_prog$ac_exec_ext" -c conftest.one conftest.two "`pwd`/conftest.dir/" &&
	      test -s conftest.one && test -s conftest.two &&
	      test -s conftest.dir/conftest.one &&
	      test -s conftest.dir/conftest.two
	    then
	      ac_cv_path_install="$as_dir$ac_prog$ac_exec_ext -c"
	      break 3
	    fi
	  fi
	fi
      done
    done
    ;;
esac

  done
IFS=$as_save_IFS

rm -rf conftest.one conftest.two conftest.dir

fi
  if test ${ac_cv_path_install+y}; then
    INSTALL=$ac_cv_path_install
  else
    # As a last resort, use the slow shell script.  Don't cache a
    # value for INSTALL within a source directory, because that will
    # break other packages using the cache if that directory is
    # removed, or if the value is a relative name.
    INSTALL=$ac_install_sh
  fi
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $INSTALL" >&5
printf "%s\n" "$INSTALL" >&6; }

# Use test -z because SunOS4 sh mishandles braces in ${var-val}.
# It thinks the first close brace ends the variable substitution.
test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'

test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}'

test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'



    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether install accepts -C" >&5
printf %s "checking whether install accepts -C... " >&6; }
    echo X > conftest.1
    if $INSTALL -C conftest.1 conftest.2 >/dev/null 2>&1; then
        INSTALL_IF_CHANGED='${INSTALL} -C'
        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
printf "%s\n" "yes" >&6; }
    else
        INSTALL_IF_CHANGED='${top_builddir}/installch'
        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
    fi
    rm -f conftest.1 conftest.2

    CLICKINSTALL=`echo "$INSTALL" | sed 's|^\$(.*)/|\${clickdatadir}/|'`

    CLICK_BUILD_INSTALL="$INSTALL"

    CLICK_BUILD_INSTALL_IF_CHANGED="`echo "$INSTALL_IF_CHANGED" | sed 's|{INSTALL}|{CLICK_BUILD_INSTALL}|'`"



    if test "${GMAKE-NO}" = NO; then
        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for GNU make" >&5
printf %s "checking for GNU make... " >&6; }
if test ${ac_cv_gnu_make+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if /bin/sh -c 'make -f /dev/null -n --version | grep GNU' >/dev/null 2>/dev/null; then
            ac_cv_gnu_make='make'
        elif /bin/sh -c 'gmake -f /dev/null -n --version | grep GNU' >/dev/null 2>/dev/null; then
            ac_cv_gnu_make='gmake'
        else
            ac_cv_gnu_make='not found'
        fi
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_gnu_make" >&5
printf "%s\n" "$ac_cv_gnu_make" >&6; }
        test "$ac_cv_gnu_make" != 'not found' && GMAKE="$ac_cv_gnu_make"
    else
        /bin/sh -c '$GMAKE -f /dev/null -n --version | grep GNU' >/dev/null 2>/dev/null || GMAKE='1'
    fi

    SUBMAKE=''
    test -n "$GMAKE" -a "$GMAKE" != make && SUBMAKE="MAKE = $GMAKE"




    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for working autoconf" >&5
printf %s "checking for working autoconf... " >&6; }
    AUTOCONF="${AUTOCONF-autoconf}"
    if ($AUTOCONF --version) < /dev/null > conftest.out 2>&1; then
        if test `head -n 1 conftest.out | sed 's/.*2\.\([0-9]*\).*/\1/'` -ge 13 2>/dev/null; then
            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: found" >&5
printf "%s\n" "found" >&6; }
        else
            AUTOCONF='$(conf_auxdir)/missing autoconf'
            { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: old" >&5
printf "%s\n" "old" >&6; }
        fi
    else
        AUTOCONF='$(conf_auxdir)/missing autoconf'
        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: missing" >&5
printf "%s\n" "missing" >&6; }
    fi



        ac_foo=`echo 'exit($A<5);' | tr A \135`

    if test "${PERL-NO}" = NO; then
        for ac_prog in perl5 perl
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_prog_perl5+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test -n "$perl5"; then
  ac_cv_prog_perl5="$perl5" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
    ac_cv_prog_perl5="$ac_prog"
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
perl5=$ac_cv_prog_perl5
if test -n "$perl5"; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $perl5" >&5
printf "%s\n" "$perl5" >&6; }
else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi


  test -n "$perl5" && break
done
test -n "$perl5" || perl5="missing"

        test "$perl5" != missing && $perl5 -e "$ac_foo" && perl5=missing
        if test "$perl5" = missing; then
            for ac_prog in perl5 perl
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_prog_localperl5+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test -n "$localperl5"; then
  ac_cv_prog_localperl5="$localperl5" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in /usr/local/bin
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
    ac_cv_prog_localperl5="$ac_prog"
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
localperl5=$ac_cv_prog_localperl5
if test -n "$localperl5"; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $localperl5" >&5
printf "%s\n" "$localperl5" >&6; }
else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi


  test -n "$localperl5" && break
done
test -n "$localperl5" || localperl5="missing"

            test "$localperl5" != missing && \
                perl5="/usr/local/bin/$localperl5"
        fi
    else
        perl5="$PERL"
    fi

    test "$perl5" != missing && $perl5 -e "$ac_foo" && perl5=missing

    if test "$perl5" = "missing"; then
        PERL='$(conf_auxdir)/missing perl'
    else
        PERL="$perl5"
    fi


for ac_prog in gawk mawk nawk awk
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_prog_AWK+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test -n "$AWK"; then
  ac_cv_prog_AWK="$AWK" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
    ac_cv_prog_AWK="$ac_prog"
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
AWK=$ac_cv_prog_AWK
if test -n "$AWK"; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $AWK" >&5
printf "%s\n" "$AWK" >&6; }
else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi


  test -n "$AWK" && break
done

{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
printf %s "checking for grep that handles long lines and -e... " >&6; }
if test ${ac_cv_path_GREP+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test -z "$GREP"; then
  ac_path_GREP_found=false
  # Loop through the user's path and test for each of PROGNAME-LIST
  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_prog in grep ggrep
   do
    for ac_exec_ext in '' $ac_executable_extensions; do
      ac_path_GREP="$as_dir$ac_prog$ac_exec_ext"
      as_fn_executable_p "$ac_path_GREP" || continue
# Check for GNU ac_path_GREP and select it if it is found.
  # Check for GNU $ac_path_GREP
case `"$ac_path_GREP" --version 2>&1` in
*GNU*)
  ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
*)
  ac_count=0
  printf %s 0123456789 >"conftest.in"
  while :
  do
    cat "conftest.in" "conftest.in" >"conftest.tmp"
    mv "conftest.tmp" "conftest.in"
    cp "conftest.in" "conftest.nl"
    printf "%s\n" 'GREP' >> "conftest.nl"
    "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
    as_fn_arith $ac_count + 1 && ac_count=$as_val
    if test $ac_count -gt ${ac_path_GREP_max-0}; then
      # Best one so far, save it but keep looking for a better one
      ac_cv_path_GREP="$ac_path_GREP"
      ac_path_GREP_max=$ac_count
    fi
    # 10*(2^10) chars as input seems more than enough
    test $ac_count -gt 10 && break
  done
  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
esac

      $ac_path_GREP_found && break 3
    done
  done
  done
IFS=$as_save_IFS
  if test -z "$ac_cv_path_GREP"; then
    as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
  fi
else
  ac_cv_path_GREP=$GREP
fi

fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
printf "%s\n" "$ac_cv_path_GREP" >&6; }
 GREP="$ac_cv_path_GREP"


{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
printf %s "checking for egrep... " >&6; }
if test ${ac_cv_path_EGREP+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
   then ac_cv_path_EGREP="$GREP -E"
   else
     if test -z "$EGREP"; then
  ac_path_EGREP_found=false
  # Loop through the user's path and test for each of PROGNAME-LIST
  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_prog in egrep
   do
    for ac_exec_ext in '' $ac_executable_extensions; do
      ac_path_EGREP="$as_dir$ac_prog$ac_exec_ext"
      as_fn_executable_p "$ac_path_EGREP" || continue
# Check for GNU ac_path_EGREP and select it if it is found.
  # Check for GNU $ac_path_EGREP
case `"$ac_path_EGREP" --version 2>&1` in
*GNU*)
  ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
*)
  ac_count=0
  printf %s 0123456789 >"conftest.in"
  while :
  do
    cat "conftest.in" "conftest.in" >"conftest.tmp"
    mv "conftest.tmp" "conftest.in"
    cp "conftest.in" "conftest.nl"
    printf "%s\n" 'EGREP' >> "conftest.nl"
    "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
    as_fn_arith $ac_count + 1 && ac_count=$as_val
    if test $ac_count -gt ${ac_path_EGREP_max-0}; then
      # Best one so far, save it but keep looking for a better one
      ac_cv_path_EGREP="$ac_path_EGREP"
      ac_path_EGREP_max=$ac_count
    fi
    # 10*(2^10) chars as input seems more than enough
    test $ac_count -gt 10 && break
  done
  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
esac

      $ac_path_EGREP_found && break 3
    done
  done
  done
IFS=$as_save_IFS
  if test -z "$ac_cv_path_EGREP"; then
    as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
  fi
else
  ac_cv_path_EGREP=$EGREP
fi

   fi
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
printf "%s\n" "$ac_cv_path_EGREP" >&6; }
 EGREP="$ac_cv_path_EGREP"


for ac_prog in md5sum md5
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_prog_MD5SUM+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test -n "$MD5SUM"; then
  ac_cv_prog_MD5SUM="$MD5SUM" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
    ac_cv_prog_MD5SUM="$ac_prog"
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
MD5SUM=$ac_cv_prog_MD5SUM
if test -n "$MD5SUM"; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $MD5SUM" >&5
printf "%s\n" "$MD5SUM" >&6; }
else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi


  test -n "$MD5SUM" && break
done

for ac_prog in llvm-config
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_prog_LLVMCONFIG+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  if test -n "$LLVMCONFIG"; then
  ac_cv_prog_LLVMCONFIG="$LLVMCONFIG" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
    ac_cv_prog_LLVMCONFIG="$ac_prog"
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
LLVMCONFIG=$ac_cv_prog_LLVMCONFIG
if test -n "$LLVMCONFIG"; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $LLVMCONFIG" >&5
printf "%s\n" "$LLVMCONFIG" >&6; }
else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi


  test -n "$LLVMCONFIG" && break
done



if test -z "$GMAKE"; then
    as_fn_error $? "
==============================================

Can't find GNU make.  Either put 'gmake' on your PATH and
rerun './configure', or set the GMAKE environment variable to
GNU make's pathname.

==============================================" "$LINENO" 5
fi

if test -z "$LLVMCONFIG" -o -n "${CXX##*clang*}" ; then
    have_llvm=no
else
    printf "%s\n" "#define HAVE_LLVM 1" >>confdefs.h

    have_llvm=yes
    LLVM_OBJS="llvmutils.o $LLVM_OBJS"
    LIBS_LLVM="`$LLVMCONFIG --ldflags --system-libs --libs all | tr -d '\n'` $LIBS_LLVM"
    INCLUDES_LLVM="`$LLVMCONFIG --cxxflags | tr -d '\n'` $INCLUDES_LLVM"
fi







for t in $DRIVERS $OTHER_TARGETS; do
    INSTALL_TARGETS="$INSTALL_TARGETS install-$t"
    CLEAN_TARGETS="$CLEAN_TARGETS clean-$t"
done



for t in $TOOL_TARGETS; do
    TOOL_INSTALL_TARGETS="$TOOL_INSTALL_TARGETS install-$t"
    TOOL_CLEAN_TARGETS="$TOOL_CLEAN_TARGETS clean-$t"
done



{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for working makeinfo" >&5
printf %s "checking for working makeinfo... " >&6; }
MAKEINFO=${MAKEINFO-makeinfo}
if ($MAKEINFO --version) < /dev/null > conftest.out 2>&1; then
    if test `head -n 1 conftest.out | sed 's/^.* \([0-9][0-9]*\).*$/\1/'` -ge 4; then
        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: found" >&5
printf "%s\n" "found" >&6; }
    else
        MAKEINFO='$(conf_auxdir)/missing makeinfo'
        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: old" >&5
printf "%s\n" "old" >&6; }
    fi
else
    MAKEINFO='$(conf_auxdir)/missing makeinfo'
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: missing" >&5
printf "%s\n" "missing" >&6; }
fi

{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for working texi2dvi" >&5
printf %s "checking for working texi2dvi... " >&6; }
TEXI2DVI=${TEXI2DVI-texi2dvi}
if ($TEXI2DVI --version) < /dev/null > conftest.out 2>&1; then
        if test `head -n 1 conftest.out | sed 's/.*Texinfo \([0-9][0-9]*\).*/\1/'` -ge 4; then
        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: found" >&5
printf "%s\n" "found" >&6; }
    else
        TEXI2DVI='$(conf_auxdir)/missing texi2dvi'
        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: old" >&5
printf "%s\n" "old" >&6; }
    fi
else
    TEXI2DVI='$(conf_auxdir)/missing texi2dvi'
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: missing" >&5
printf "%s\n" "missing" >&6; }
fi

if test ${INSTALL_INFO-xxx} = xxx; then
    # Extract the first word of "install-info", so it can be a program name with args.
set dummy install-info; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_path_INSTALL_INFO+y}
then :
  printf %s "(cached) " >&6
else $as_nop
  case $INSTALL_INFO in
  [\\/]* | ?:[\\/]*)
  ac_cv_path_INSTALL_INFO="$INSTALL_INFO" # Let the user override the test with a path.
  ;;
  *)
  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
as_dummy="$PATH:/sbin:/usr/sbin:/usr/local/sbin"
for as_dir in $as_dummy
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
    ac_cv_path_INSTALL_INFO="$as_dir$ac_word$ac_exec_ext"
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

  test -z "$ac_cv_path_INSTALL_INFO" && ac_cv_path_INSTALL_INFO="'$(conf_auxdir)/missing install-info'"
  ;;
esac
fi
INSTALL_INFO=$ac_cv_path_INSTALL_INFO
if test -n "$INSTALL_INFO"; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $INSTALL_INFO" >&5
printf "%s\n" "$INSTALL_INFO" >&6; }
else
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
printf "%s\n" "no" >&6; }
fi


fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for working install-info" >&5
printf %s "checking for working install-info... " >&6; }
if ($INSTALL_INFO --version) < /dev/null > conftest.out 2>&1; then
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: found" >&5
printf "%s\n" "found" >&6; }
else
    INSTALL_INFO='$(conf_auxdir)/missing install-info'
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: missing" >&5
printf "%s\n" "missing" >&6; }
fi

{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for working pod2man" >&5
printf %s "checking for working pod2man... " >&6; }
POD2MAN=${POD2MAN-pod2man}
if ($POD2MAN --help) < /dev/null > conftest.out 2>&1 && grep pod2man conftest.out >/dev/null 2>&1; then
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: found" >&5
printf "%s\n" "found" >&6; }
else
    POD2MAN='$(conf_auxdir)/missing pod2man'
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: missing" >&5
printf "%s\n" "missing" >&6; }
fi










printf "%s\n" "#define CLICK_BINDIR \"$bindir\"" >>confdefs.h


printf "%s\n" "#define CLICK_LIBDIR \"$libdir\"" >>confdefs.h


printf "%s\n" "#define CLICK_DATADIR \"$clickdatadir\"" >>confdefs.h



printf "%s\n" "#define CLICK_DIR \"$clickdir\"" >>confdefs.h













provisions="$target_cpu"
case "$target_cpu" in
    i386) :;;
    i486|i586) provisions="$provisions i386";;
    i686|i786) provisions="$provisions i386 i586";;
esac

if test "x$enable_analysis" = xyes; then
    provisions="$provisions analysis"
fi

if test "x$enable_auto_batch" == "xjump" -o "x$enable_auto_batch" == "xlist" ; then
    provisions="$provisions autobatch_jumplist"
fi

if test "x$enable_auto_batch" == "xport" ; then
    provisions="$provisions autobatch_port"
fi

if test "x$enable_bpf" = xyes; then
    provisions="$provisions bpf"
fi

if test "x$enable_batch" = xyes; then
    provisions="$provisions batch"
else
    enable_batch="no"
fi

if test "x$ax_cv_cxx_compile_cxx17" = xyes; then
    provisions="$provisions cxx17"
fi

if test "x$enable_dpdk" != "xno"; then
    provisions="$provisions dpdk"
    if test "$rte_ver_year" -ge 19; then
        provisions="$provisions dpdk19"
    fi
    if test "$rte_ver_year" -ge 18; then
        provisions="$provisions dpdk18"
    fi
    if test "$rte_ver_year" -ge 17; then
        provisions="$provisions dpdk17"
    fi
fi

if test "x$enable_dpdk_packet" = xyes; then
    provisions="$provisions dpdk-packet"
    packet_mode="DPDK rte_mbuf"
else
    if test "x$enable_dpdk_pool" = xyes; then
        packet_mode="Click's Packet object with DPDK buffers in the pool"
    else
        packet_mode="Click's Packet object with any buffers"
    fi
fi

if test "x$enable_dpdk_xchg" = xyes; then
    provisions="$provisions dpdk-xchg"
fi

if test "x$enable_flow" = xyes; then
    provisions="$provisions flow"
    if test "x$enable_flow_dynamic" = xyes; then
        provisions="$provisions flow-dynamic"
    fi
else
    enable_flow="no"
fi

if test "x$enable_ctx" = xyes; then
    provisions="$provisions ctx"
else
    enable_ctx="no"
fi

if test "x$enable_ctx_global_timeout" = xyes; then
    provisions="$provisions ctx-global-timeout"
fi



if test "x$enable_experimental" = xyes; then
    provisions="$provisions experimental"
fi

if test "x$enable_tunnel" = xyes; then
    provisions="$provisions tunnel"
fi

if test "x$have_hyperscan" = xyes; then
    provisions="$provisions hs"
fi

if test "x$have_int64_types" = xyes; then
    provisions="$provisions int64"
fi

if test "x$enable_ip6" = xyes; then
    provisions="$provisions ip6"
fi

if test "x$ac_cv_under_linux" = xyes; then
    provisions="$provisions linux"
fi

if test $ac_have_linux_kernel = y; then
    if test $linux_version_code -ge 131584 -a $linux_version_code -lt 131840; then
        provisions="$provisions linux_2_2"
    elif test $linux_version_code -ge 132096 -a $linux_version_code -lt 132352; then
        provisions="$provisions linux_2_4"
    elif test $linux_version_code -ge 132608 -a $linux_version_code -lt 132864; then
        provisions="$provisions linux_2_6"
    fi
fi

if test "x$enable_cpu_load" = xyes; then
    provisions="$provisions load"
fi

if test "$ac_have_libmbdevio$ac_have_mbgdevio_h" = yesyes; then
    provisions="$provisions mbglib"
fi

if test "$ac_have_libmicrohttpd$ac_have_microhttpd_h" = yesyes; then
    provisions="$provisions microhttpd"
fi

if test "x$HAVE_NETMAP" = xyes; then
    provisions="$provisions netmap"
fi

if test "x$enable_fullpush_nonatomic" = xyes; then
    provisions="$provisions nonatomicfp"
fi

if test "x$HAVE_NUMA" = xyes; then
    provisions="$provisions numa"
fi

if test "x$have_papi" = xyes; then
    provisions="$provisions papi"
fi

if test "x$HAVE_PCAP" = xyes; then
    provisions="$provisions pcap"
    have_pcap=yes
else
    have_pcap=no
fi

if test "x$have_pci" = xyes; then
    provisions="$provisions pci"
fi

if test "x$have_llvm" = xyes; then
    provisions="$provisions llvm"
fi

if test "x$have_re2" = xyes; then
    provisions="$provisions re2"
fi

if test "x$enable_rsspp" = xyes; then
    provisions="$provisions rsspp"
fi

if test "$enable_multithread" != no; then
    provisions="$provisions smpclick"
fi

if test "x$enable_task_stats" = xyes; then
    provisions="$provisions taskstats"
fi

if test "x$enable_user_multithread" = xyes; then
    provisions="$provisions umultithread"
fi

if test "x$enable_user_timestamp" = xyes; then
    provisions="$provisions usertiming"
fi

if test "x$enable_wifi" = xyes; then
    provisions="$provisions wifi"
fi




test -f $srcdir/bsdmodule/Makefile.in && ac_config_files="$ac_config_files bsdmodule/Makefile"

test -f $srcdir/linuxmodule/Makefile.in && ac_config_files="$ac_config_files linuxmodule/Makefile"

test -f $srcdir/minios/Makefile.in && ac_config_files="$ac_config_files minios/Makefile minios/config.mk"

test -f $srcdir/ns/Makefile.in && ac_config_files="$ac_config_files ns/Makefile"

test -f $srcdir/userlevel/Makefile.in && ac_config_files="$ac_config_files userlevel/Makefile"


test -f $srcdir/lib/json.cc && provisions="$provisions Json"

test -d $srcdir/tools/click-align && ac_config_files="$ac_config_files tools/click-align/Makefile"

test -d $srcdir/tools/click-check && ac_config_files="$ac_config_files tools/click-check/Makefile"

test -d $srcdir/tools/click-combine && ac_config_files="$ac_config_files tools/click-combine/Makefile"

test -d $srcdir/tools/click-devirtualize && ac_config_files="$ac_config_files tools/click-devirtualize/Makefile"

test -d $srcdir/tools/click-fastclassifier && ac_config_files="$ac_config_files tools/click-fastclassifier/Makefile"

test -d $srcdir/tools/click-flatten && ac_config_files="$ac_config_files tools/click-flatten/Makefile"

test -d $srcdir/tools/click-install && ac_config_files="$ac_config_files tools/click-install/Makefile"

test -d $srcdir/tools/click-ipopt && ac_config_files="$ac_config_files tools/click-ipopt/Makefile"

test -d $srcdir/tools/click-mkmindriver && ac_config_files="$ac_config_files tools/click-mkmindriver/Makefile"

test -d $srcdir/tools/click-pretty && ac_config_files="$ac_config_files tools/click-pretty/Makefile"

test -d $srcdir/tools/click-undead && ac_config_files="$ac_config_files tools/click-undead/Makefile"

test -d $srcdir/tools/click-xform && ac_config_files="$ac_config_files tools/click-xform/Makefile"

test -d $srcdir/tools/click2xml && ac_config_files="$ac_config_files tools/click2xml/Makefile"


for ac_dir in bin etc include share share/click; do
    test ! -d "$ac_dir" && mkdir "$ac_dir"
done

cat >confcache <<\_ACEOF
# This file is a shell script that caches the results of configure
# tests run on this system so they can be shared between configure
# scripts and configure runs, see configure's option --config-cache.
# It is not useful on other systems.  If it contains results you don't
# want to keep, you may remove or edit it.
#
# config.status only pays attention to the cache file if you give it
# the --recheck option to rerun configure.
#
# `ac_cv_env_foo' variables (set or unset) will be overridden when
# loading this file, other *unset* `ac_cv_foo' will be assigned the
# following values.

_ACEOF

# The following way of writing the cache mishandles newlines in values,
# but we know of no workaround that is simple, portable, and efficient.
# So, we kill variables containing newlines.
# Ultrix sh set writes to stderr and can't be redirected directly,
# and sets the high bit in the cache file unless we assign to the vars.
(
  for ac_var in `(set) 2>&1 | sed -n 's/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'`; do
    eval ac_val=\$$ac_var
    case $ac_val in #(
    *${as_nl}*)
      case $ac_var in #(
      *_cv_*) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
printf "%s\n" "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
      esac
      case $ac_var in #(
      _ | IFS | as_nl) ;; #(
      BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
      *) { eval $ac_var=; unset $ac_var;} ;;
      esac ;;
    esac
  done

  (set) 2>&1 |
    case $as_nl`(ac_space=' '; set) 2>&1` in #(
    *${as_nl}ac_space=\ *)
      # `set' does not quote correctly, so add quotes: double-quote
      # substitution turns \\\\ into \\, and sed turns \\ into \.
      sed -n \
	"s/'/'\\\\''/g;
	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"
      ;; #(
    *)
      # `set' quotes correctly as required by POSIX, so do not add quotes.
      sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
      ;;
    esac |
    sort
) |
  sed '
     /^ac_cv_env_/b end
     t clear
     :clear
     s/^\([^=]*\)=\(.*[{}].*\)$/test ${\1+y} || &/
     t end
     s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
     :end' >>confcache
if diff "$cache_file" confcache >/dev/null 2>&1; then :; else
  if test -w "$cache_file"; then
    if test "x$cache_file" != "x/dev/null"; then
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5
printf "%s\n" "$as_me: updating cache $cache_file" >&6;}
      if test ! -f "$cache_file" || test -h "$cache_file"; then
	cat confcache >"$cache_file"
      else
        case $cache_file in #(
        */* | ?:*)
	  mv -f confcache "$cache_file"$$ &&
	  mv -f "$cache_file"$$ "$cache_file" ;; #(
        *)
	  mv -f confcache "$cache_file" ;;
	esac
      fi
    fi
  else
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5
printf "%s\n" "$as_me: not updating unwritable cache $cache_file" >&6;}
  fi
fi
rm -f confcache

test "x$prefix" = xNONE && prefix=$ac_default_prefix
# Let make expand exec_prefix.
test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'

DEFS=-DHAVE_CONFIG_H

ac_libobjs=
ac_ltlibobjs=
U=
for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue
  # 1. Remove the extension, and $U if already installed.
  ac_script='s/\$U\././;s/\.o$//;s/\.obj$//'
  ac_i=`printf "%s\n" "$ac_i" | sed "$ac_script"`
  # 2. Prepend LIBOBJDIR.  When used with automake>=1.10 LIBOBJDIR
  #    will be set to the directory where LIBOBJS objects are built.
  as_fn_append ac_libobjs " \${LIBOBJDIR}$ac_i\$U.$ac_objext"
  as_fn_append ac_ltlibobjs " \${LIBOBJDIR}$ac_i"'$U.lo'
done
LIBOBJS=$ac_libobjs

LTLIBOBJS=$ac_ltlibobjs



: "${CONFIG_STATUS=./config.status}"
ac_write_fail=0
ac_clean_files_save=$ac_clean_files
ac_clean_files="$ac_clean_files $CONFIG_STATUS"
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: creating $CONFIG_STATUS" >&5
printf "%s\n" "$as_me: creating $CONFIG_STATUS" >&6;}
as_write_fail=0
cat >$CONFIG_STATUS <<_ASEOF || as_write_fail=1
#! $SHELL
# Generated by $as_me.
# Run this file to recreate the current configuration.
# Compiler output produced by configure, useful for debugging
# configure, is in config.log if it exists.

debug=false
ac_cs_recheck=false
ac_cs_silent=false

SHELL=\${CONFIG_SHELL-$SHELL}
export SHELL
_ASEOF
cat >>$CONFIG_STATUS <<\_ASEOF || as_write_fail=1
## -------------------- ##
## M4sh Initialization. ##
## -------------------- ##

# Be more Bourne compatible
DUALCASE=1; export DUALCASE # for MKS sh
as_nop=:
if test ${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
then :
  emulate sh
  NULLCMD=:
  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
  # is contrary to our usage.  Disable this feature.
  alias -g '${1+"$@"}'='"$@"'
  setopt NO_GLOB_SUBST
else $as_nop
  case `(set -o) 2>/dev/null` in #(
  *posix*) :
    set -o posix ;; #(
  *) :
     ;;
esac
fi



# Reset variables that may have inherited troublesome values from
# the environment.

# IFS needs to be set, to space, tab, and newline, in precisely that order.
# (If _AS_PATH_WALK were called with IFS unset, it would have the
# side effect of setting IFS to empty, thus disabling word splitting.)
# Quoting is to prevent editors from complaining about space-tab.
as_nl='
'
export as_nl
IFS=" ""	$as_nl"

PS1='$ '
PS2='> '
PS4='+ '

# Ensure predictable behavior from utilities with locale-dependent output.
LC_ALL=C
export LC_ALL
LANGUAGE=C
export LANGUAGE

# We cannot yet rely on "unset" to work, but we need these variables
# to be unset--not just set to an empty or harmless value--now, to
# avoid bugs in old shells (e.g. pre-3.0 UWIN ksh).  This construct
# also avoids known problems related to "unset" and subshell syntax
# in other old shells (e.g. bash 2.01 and pdksh 5.2.14).
for as_var in BASH_ENV ENV MAIL MAILPATH CDPATH
do eval test \${$as_var+y} \
  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
done

# Ensure that fds 0, 1, and 2 are open.
if (exec 3>&0) 2>/dev/null; then :; else exec 0</dev/null; fi
if (exec 3>&1) 2>/dev/null; then :; else exec 1>/dev/null; fi
if (exec 3>&2)            ; then :; else exec 2>/dev/null; fi

# The user is always right.
if ${PATH_SEPARATOR+false} :; then
  PATH_SEPARATOR=:
  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
      PATH_SEPARATOR=';'
  }
fi


# Find who we are.  Look in the path if we contain no directory separator.
as_myself=
case $0 in #((
  *[\\/]* ) as_myself=$0 ;;
  *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  case $as_dir in #(((
    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    test -r "$as_dir$0" && as_myself=$as_dir$0 && break
  done
IFS=$as_save_IFS

     ;;
esac
# We did not find ourselves, most probably we were run as `sh COMMAND'
# in which case we are not to be found in the path.
if test "x$as_myself" = x; then
  as_myself=$0
fi
if test ! -f "$as_myself"; then
  printf "%s\n" "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
  exit 1
fi



# as_fn_error STATUS ERROR [LINENO LOG_FD]
# ----------------------------------------
# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
# provided, also output the error to LOG_FD, referencing LINENO. Then exit the
# script with STATUS, using 1 if that was 0.
as_fn_error ()
{
  as_status=$1; test $as_status -eq 0 && as_status=1
  if test "$4"; then
    as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
  fi
  printf "%s\n" "$as_me: error: $2" >&2
  as_fn_exit $as_status
} # as_fn_error



# as_fn_set_status STATUS
# -----------------------
# Set $? to STATUS, without forking.
as_fn_set_status ()
{
  return $1
} # as_fn_set_status

# as_fn_exit STATUS
# -----------------
# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
as_fn_exit ()
{
  set +e
  as_fn_set_status $1
  exit $1
} # as_fn_exit

# as_fn_unset VAR
# ---------------
# Portably unset VAR.
as_fn_unset ()
{
  { eval $1=; unset $1;}
}
as_unset=as_fn_unset

# as_fn_append VAR VALUE
# ----------------------
# Append the text in VALUE to the end of the definition contained in VAR. Take
# advantage of any shell optimizations that allow amortized linear growth over
# repeated appends, instead of the typical quadratic growth present in naive
# implementations.
if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null
then :
  eval 'as_fn_append ()
  {
    eval $1+=\$2
  }'
else $as_nop
  as_fn_append ()
  {
    eval $1=\$$1\$2
  }
fi # as_fn_append

# as_fn_arith ARG...
# ------------------
# Perform arithmetic evaluation on the ARGs, and store the result in the
# global $as_val. Take advantage of shells that can avoid forks. The arguments
# must be portable across $(()) and expr.
if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null
then :
  eval 'as_fn_arith ()
  {
    as_val=$(( $* ))
  }'
else $as_nop
  as_fn_arith ()
  {
    as_val=`expr "$@" || test $? -eq 1`
  }
fi # as_fn_arith


if expr a : '\(a\)' >/dev/null 2>&1 &&
   test "X`expr 00001 : '.*\(...\)'`" = X001; then
  as_expr=expr
else
  as_expr=false
fi

if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
  as_basename=basename
else
  as_basename=false
fi

if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
  as_dirname=dirname
else
  as_dirname=false
fi

as_me=`$as_basename -- "$0" ||
$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
	 X"$0" : 'X\(//\)$' \| \
	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
printf "%s\n" X/"$0" |
    sed '/^.*\/\([^/][^/]*\)\/*$/{
	    s//\1/
	    q
	  }
	  /^X\/\(\/\/\)$/{
	    s//\1/
	    q
	  }
	  /^X\/\(\/\).*/{
	    s//\1/
	    q
	  }
	  s/.*/./; q'`

# Avoid depending upon Character Ranges.
as_cr_letters='abcdefghijklmnopqrstuvwxyz'
as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
as_cr_Letters=$as_cr_letters$as_cr_LETTERS
as_cr_digits='0123456789'
as_cr_alnum=$as_cr_Letters$as_cr_digits


# Determine whether it's possible to make 'echo' print without a newline.
# These variables are no longer used directly by Autoconf, but are AC_SUBSTed
# for compatibility with existing Makefiles.
ECHO_C= ECHO_N= ECHO_T=
case `echo -n x` in #(((((
-n*)
  case `echo 'xy\c'` in
  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
  xy)  ECHO_C='\c';;
  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
       ECHO_T='	';;
  esac;;
*)
  ECHO_N='-n';;
esac

# For backward compatibility with old third-party macros, we provide
# the shell variables $as_echo and $as_echo_n.  New code should use
# AS_ECHO(["message"]) and AS_ECHO_N(["message"]), respectively.
as_echo='printf %s\n'
as_echo_n='printf %s'

rm -f conf$$ conf$$.exe conf$$.file
if test -d conf$$.dir; then
  rm -f conf$$.dir/conf$$.file
else
  rm -f conf$$.dir
  mkdir conf$$.dir 2>/dev/null
fi
if (echo >conf$$.file) 2>/dev/null; then
  if ln -s conf$$.file conf$$ 2>/dev/null; then
    as_ln_s='ln -s'
    # ... but there are two gotchas:
    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
    # In both cases, we have to default to `cp -pR'.
    ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
      as_ln_s='cp -pR'
  elif ln conf$$.file conf$$ 2>/dev/null; then
    as_ln_s=ln
  else
    as_ln_s='cp -pR'
  fi
else
  as_ln_s='cp -pR'
fi
rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
rmdir conf$$.dir 2>/dev/null


# as_fn_mkdir_p
# -------------
# Create "$as_dir" as a directory, including parents if necessary.
as_fn_mkdir_p ()
{

  case $as_dir in #(
  -*) as_dir=./$as_dir;;
  esac
  test -d "$as_dir" || eval $as_mkdir_p || {
    as_dirs=
    while :; do
      case $as_dir in #(
      *\'*) as_qdir=`printf "%s\n" "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
      *) as_qdir=$as_dir;;
      esac
      as_dirs="'$as_qdir' $as_dirs"
      as_dir=`$as_dirname -- "$as_dir" ||
$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
	 X"$as_dir" : 'X\(//\)[^/]' \| \
	 X"$as_dir" : 'X\(//\)$' \| \
	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
printf "%s\n" X"$as_dir" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
	    s//\1/
	    q
	  }
	  /^X\(\/\/\)[^/].*/{
	    s//\1/
	    q
	  }
	  /^X\(\/\/\)$/{
	    s//\1/
	    q
	  }
	  /^X\(\/\).*/{
	    s//\1/
	    q
	  }
	  s/.*/./; q'`
      test -d "$as_dir" && break
    done
    test -z "$as_dirs" || eval "mkdir $as_dirs"
  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"


} # as_fn_mkdir_p
if mkdir -p . 2>/dev/null; then
  as_mkdir_p='mkdir -p "$as_dir"'
else
  test -d ./-p && rmdir ./-p
  as_mkdir_p=false
fi


# as_fn_executable_p FILE
# -----------------------
# Test if FILE is an executable regular file.
as_fn_executable_p ()
{
  test -f "$1" && test -x "$1"
} # as_fn_executable_p
as_test_x='test -x'
as_executable_p=as_fn_executable_p

# Sed expression to map a string onto a valid CPP name.
as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"

# Sed expression to map a string onto a valid variable name.
as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"


exec 6>&1
## ----------------------------------- ##
## Main body of $CONFIG_STATUS script. ##
## ----------------------------------- ##
_ASEOF
test $as_write_fail = 0 && chmod +x $CONFIG_STATUS || ac_write_fail=1

cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
# Save the log message, to keep $0 and so on meaningful, and to
# report actual input values of CONFIG_FILES etc. instead of their
# values after options handling.
ac_log="
This file was extended by click $as_me 2.1, which was
generated by GNU Autoconf 2.71.  Invocation command line was

  CONFIG_FILES    = $CONFIG_FILES
  CONFIG_HEADERS  = $CONFIG_HEADERS
  CONFIG_LINKS    = $CONFIG_LINKS
  CONFIG_COMMANDS = $CONFIG_COMMANDS
  $ $0 $@

on `(hostname || uname -n) 2>/dev/null | sed 1q`
"

_ACEOF

case $ac_config_files in *"
"*) set x $ac_config_files; shift; ac_config_files=$*;;
esac

case $ac_config_headers in *"
"*) set x $ac_config_headers; shift; ac_config_headers=$*;;
esac


cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
# Files that config.status was made for.
config_files="$ac_config_files"
config_headers="$ac_config_headers"

_ACEOF

cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
ac_cs_usage="\
\`$as_me' instantiates files and other configuration actions
from templates according to the current configuration.  Unless the files
and actions are specified as TAGs, all are instantiated by default.

Usage: $0 [OPTION]... [TAG]...

  -h, --help       print this help, then exit
  -V, --version    print version number and configuration settings, then exit
      --config     print configuration, then exit
  -q, --quiet, --silent
                   do not print progress messages
  -d, --debug      don't remove temporary files
      --recheck    update $as_me by reconfiguring in the same conditions
      --file=FILE[:TEMPLATE]
                   instantiate the configuration file FILE
      --header=FILE[:TEMPLATE]
                   instantiate the configuration header FILE

Configuration files:
$config_files

Configuration headers:
$config_headers

Report bugs to the package provider."

_ACEOF
ac_cs_config=`printf "%s\n" "$ac_configure_args" | sed "$ac_safe_unquote"`
ac_cs_config_escaped=`printf "%s\n" "$ac_cs_config" | sed "s/^ //; s/'/'\\\\\\\\''/g"`
cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
ac_cs_config='$ac_cs_config_escaped'
ac_cs_version="\\
click config.status 2.1
configured by $0, generated by GNU Autoconf 2.71,
  with options \\"\$ac_cs_config\\"

Copyright (C) 2021 Free Software Foundation, Inc.
This config.status script is free software; the Free Software Foundation
gives unlimited permission to copy, distribute and modify it."

ac_pwd='$ac_pwd'
srcdir='$srcdir'
INSTALL='$INSTALL'
AWK='$AWK'
test -n "\$AWK" || AWK=awk
_ACEOF

cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
# The default lists apply if the user does not specify any file.
ac_need_defaults=:
while test $# != 0
do
  case $1 in
  --*=?*)
    ac_option=`expr "X$1" : 'X\([^=]*\)='`
    ac_optarg=`expr "X$1" : 'X[^=]*=\(.*\)'`
    ac_shift=:
    ;;
  --*=)
    ac_option=`expr "X$1" : 'X\([^=]*\)='`
    ac_optarg=
    ac_shift=:
    ;;
  *)
    ac_option=$1
    ac_optarg=$2
    ac_shift=shift
    ;;
  esac

  case $ac_option in
  # Handling of the options.
  -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
    ac_cs_recheck=: ;;
  --version | --versio | --versi | --vers | --ver | --ve | --v | -V )
    printf "%s\n" "$ac_cs_version"; exit ;;
  --config | --confi | --conf | --con | --co | --c )
    printf "%s\n" "$ac_cs_config"; exit ;;
  --debug | --debu | --deb | --de | --d | -d )
    debug=: ;;
  --file | --fil | --fi | --f )
    $ac_shift
    case $ac_optarg in
    *\'*) ac_optarg=`printf "%s\n" "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
    '') as_fn_error $? "missing file argument" ;;
    esac
    as_fn_append CONFIG_FILES " '$ac_optarg'"
    ac_need_defaults=false;;
  --header | --heade | --head | --hea )
    $ac_shift
    case $ac_optarg in
    *\'*) ac_optarg=`printf "%s\n" "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
    esac
    as_fn_append CONFIG_HEADERS " '$ac_optarg'"
    ac_need_defaults=false;;
  --he | --h)
    # Conflict between --help and --header
    as_fn_error $? "ambiguous option: \`$1'
Try \`$0 --help' for more information.";;
  --help | --hel | -h )
    printf "%s\n" "$ac_cs_usage"; exit ;;
  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
  | -silent | --silent | --silen | --sile | --sil | --si | --s)
    ac_cs_silent=: ;;

  # This is an error.
  -*) as_fn_error $? "unrecognized option: \`$1'
Try \`$0 --help' for more information." ;;

  *) as_fn_append ac_config_targets " $1"
     ac_need_defaults=false ;;

  esac
  shift
done

ac_configure_extra_args=

if $ac_cs_silent; then
  exec 6>/dev/null
  ac_configure_extra_args="$ac_configure_extra_args --silent"
fi

_ACEOF
cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
if \$ac_cs_recheck; then
  set X $SHELL '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
  shift
  \printf "%s\n" "running CONFIG_SHELL=$SHELL \$*" >&6
  CONFIG_SHELL='$SHELL'
  export CONFIG_SHELL
  exec "\$@"
fi

_ACEOF
cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
exec 5>>config.log
{
  echo
  sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX
## Running $as_me. ##
_ASBOX
  printf "%s\n" "$ac_log"
} >&5

_ACEOF
cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
_ACEOF

cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1

# Handling of arguments.
for ac_config_target in $ac_config_targets
do
  case $ac_config_target in
    "include/click/config.h") CONFIG_HEADERS="$CONFIG_HEADERS include/click/config.h:config.h.in" ;;
    "include/click/pathvars.h") CONFIG_HEADERS="$CONFIG_HEADERS include/click/pathvars.h:pathvars.h.in" ;;
    "include/click/config-bsdmodule.h") CONFIG_HEADERS="$CONFIG_HEADERS include/click/config-bsdmodule.h:config-bsdmodule.h.in" ;;
    "include/click/config-linuxmodule.h") CONFIG_HEADERS="$CONFIG_HEADERS include/click/config-linuxmodule.h:config-linuxmodule.h.in" ;;
    "include/click/config-ns.h") CONFIG_HEADERS="$CONFIG_HEADERS include/click/config-ns.h:config-ns.h.in" ;;
    "include/click/config-userlevel.h") CONFIG_HEADERS="$CONFIG_HEADERS include/click/config-userlevel.h:config-userlevel.h.in" ;;
    "include/click/config-minios.h") CONFIG_HEADERS="$CONFIG_HEADERS include/click/config-minios.h:config-minios.h.in" ;;
    "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;;
    "bin/click-buildtool") CONFIG_FILES="$CONFIG_FILES bin/click-buildtool:click-buildtool.in" ;;
    "bin/click-compile") CONFIG_FILES="$CONFIG_FILES bin/click-compile:click-compile.in" ;;
    "installch") CONFIG_FILES="$CONFIG_FILES installch" ;;
    "share/click/config.mk") CONFIG_FILES="$CONFIG_FILES share/click/config.mk:config.mk.in" ;;
    "share/click/pkg-config.mk") CONFIG_FILES="$CONFIG_FILES share/click/pkg-config.mk" ;;
    "doc/Makefile") CONFIG_FILES="$CONFIG_FILES doc/Makefile" ;;
    "etc/libclick/Makefile") CONFIG_FILES="$CONFIG_FILES etc/libclick/Makefile" ;;
    "tools/Makefile") CONFIG_FILES="$CONFIG_FILES tools/Makefile" ;;
    "tools/lib/Makefile") CONFIG_FILES="$CONFIG_FILES tools/lib/Makefile" ;;
    "bsdmodule/Makefile") CONFIG_FILES="$CONFIG_FILES bsdmodule/Makefile" ;;
    "linuxmodule/Makefile") CONFIG_FILES="$CONFIG_FILES linuxmodule/Makefile" ;;
    "minios/Makefile") CONFIG_FILES="$CONFIG_FILES minios/Makefile" ;;
    "minios/config.mk") CONFIG_FILES="$CONFIG_FILES minios/config.mk" ;;
    "ns/Makefile") CONFIG_FILES="$CONFIG_FILES ns/Makefile" ;;
    "userlevel/Makefile") CONFIG_FILES="$CONFIG_FILES userlevel/Makefile" ;;
    "tools/click-align/Makefile") CONFIG_FILES="$CONFIG_FILES tools/click-align/Makefile" ;;
    "tools/click-check/Makefile") CONFIG_FILES="$CONFIG_FILES tools/click-check/Makefile" ;;
    "tools/click-combine/Makefile") CONFIG_FILES="$CONFIG_FILES tools/click-combine/Makefile" ;;
    "tools/click-devirtualize/Makefile") CONFIG_FILES="$CONFIG_FILES tools/click-devirtualize/Makefile" ;;
    "tools/click-fastclassifier/Makefile") CONFIG_FILES="$CONFIG_FILES tools/click-fastclassifier/Makefile" ;;
    "tools/click-flatten/Makefile") CONFIG_FILES="$CONFIG_FILES tools/click-flatten/Makefile" ;;
    "tools/click-install/Makefile") CONFIG_FILES="$CONFIG_FILES tools/click-install/Makefile" ;;
    "tools/click-ipopt/Makefile") CONFIG_FILES="$CONFIG_FILES tools/click-ipopt/Makefile" ;;
    "tools/click-mkmindriver/Makefile") CONFIG_FILES="$CONFIG_FILES tools/click-mkmindriver/Makefile" ;;
    "tools/click-pretty/Makefile") CONFIG_FILES="$CONFIG_FILES tools/click-pretty/Makefile" ;;
    "tools/click-undead/Makefile") CONFIG_FILES="$CONFIG_FILES tools/click-undead/Makefile" ;;
    "tools/click-xform/Makefile") CONFIG_FILES="$CONFIG_FILES tools/click-xform/Makefile" ;;
    "tools/click2xml/Makefile") CONFIG_FILES="$CONFIG_FILES tools/click2xml/Makefile" ;;

  *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
  esac
done


# If the user did not use the arguments to specify the items to instantiate,
# then the envvar interface is used.  Set only those that are not.
# We use the long form for the default assignment because of an extremely
# bizarre bug on SunOS 4.1.3.
if $ac_need_defaults; then
  test ${CONFIG_FILES+y} || CONFIG_FILES=$config_files
  test ${CONFIG_HEADERS+y} || CONFIG_HEADERS=$config_headers
fi

# Have a temporary directory for convenience.  Make it in the build tree
# simply because there is no reason against having it here, and in addition,
# creating and moving files from /tmp can sometimes cause problems.
# Hook for its removal unless debugging.
# Note that there is a small window in which the directory will not be cleaned:
# after its creation but before its name has been assigned to `$tmp'.
$debug ||
{
  tmp= ac_tmp=
  trap 'exit_status=$?
  : "${ac_tmp:=$tmp}"
  { test ! -d "$ac_tmp" || rm -fr "$ac_tmp"; } && exit $exit_status
' 0
  trap 'as_fn_exit 1' 1 2 13 15
}
# Create a (secure) tmp directory for tmp files.

{
  tmp=`(umask 077 && mktemp -d "./confXXXXXX") 2>/dev/null` &&
  test -d "$tmp"
}  ||
{
  tmp=./conf$$-$RANDOM
  (umask 077 && mkdir "$tmp")
} || as_fn_error $? "cannot create a temporary directory in ." "$LINENO" 5
ac_tmp=$tmp

# Set up the scripts for CONFIG_FILES section.
# No need to generate them if there are no CONFIG_FILES.
# This happens for instance with `./config.status config.h'.
if test -n "$CONFIG_FILES"; then


ac_cr=`echo X | tr X '\015'`
# On cygwin, bash can eat \r inside `` if the user requested igncr.
# But we know of no other shell where ac_cr would be empty at this
# point, so we can use a bashism as a fallback.
if test "x$ac_cr" = x; then
  eval ac_cr=\$\'\\r\'
fi
ac_cs_awk_cr=`$AWK 'BEGIN { print "a\rb" }' </dev/null 2>/dev/null`
if test "$ac_cs_awk_cr" = "a${ac_cr}b"; then
  ac_cs_awk_cr='\\r'
else
  ac_cs_awk_cr=$ac_cr
fi

echo 'BEGIN {' >"$ac_tmp/subs1.awk" &&
_ACEOF


{
  echo "cat >conf$$subs.awk <<_ACEOF" &&
  echo "$ac_subst_vars" | sed 's/.*/&!$&$ac_delim/' &&
  echo "_ACEOF"
} >conf$$subs.sh ||
  as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
ac_delim_num=`echo "$ac_subst_vars" | grep -c '^'`
ac_delim='%!_!# '
for ac_last_try in false false false false false :; do
  . ./conf$$subs.sh ||
    as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5

  ac_delim_n=`sed -n "s/.*$ac_delim\$/X/p" conf$$subs.awk | grep -c X`
  if test $ac_delim_n = $ac_delim_num; then
    break
  elif $ac_last_try; then
    as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
  else
    ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
  fi
done
rm -f conf$$subs.sh

cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
cat >>"\$ac_tmp/subs1.awk" <<\\_ACAWK &&
_ACEOF
sed -n '
h
s/^/S["/; s/!.*/"]=/
p
g
s/^[^!]*!//
:repl
t repl
s/'"$ac_delim"'$//
t delim
:nl
h
s/\(.\{148\}\)..*/\1/
t more1
s/["\\]/\\&/g; s/^/"/; s/$/\\n"\\/
p
n
b repl
:more1
s/["\\]/\\&/g; s/^/"/; s/$/"\\/
p
g
s/.\{148\}//
t nl
:delim
h
s/\(.\{148\}\)..*/\1/
t more2
s/["\\]/\\&/g; s/^/"/; s/$/"/
p
b
:more2
s/["\\]/\\&/g; s/^/"/; s/$/"\\/
p
g
s/.\{148\}//
t delim
' <conf$$subs.awk | sed '
/^[^""]/{
  N
  s/\n//
}
' >>$CONFIG_STATUS || ac_write_fail=1
rm -f conf$$subs.awk
cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
_ACAWK
cat >>"\$ac_tmp/subs1.awk" <<_ACAWK &&
  for (key in S) S_is_set[key] = 1
  FS = ""

}
{
  line = $ 0
  nfields = split(line, field, "@")
  substed = 0
  len = length(field[1])
  for (i = 2; i < nfields; i++) {
    key = field[i]
    keylen = length(key)
    if (S_is_set[key]) {
      value = S[key]
      line = substr(line, 1, len) "" value "" substr(line, len + keylen + 3)
      len += length(value) + length(field[++i])
      substed = 1
    } else
      len += 1 + keylen
  }

  print line
}

_ACAWK
_ACEOF
cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
if sed "s/$ac_cr//" < /dev/null > /dev/null 2>&1; then
  sed "s/$ac_cr\$//; s/$ac_cr/$ac_cs_awk_cr/g"
else
  cat
fi < "$ac_tmp/subs1.awk" > "$ac_tmp/subs.awk" \
  || as_fn_error $? "could not setup config files machinery" "$LINENO" 5
_ACEOF

# VPATH may cause trouble with some makes, so we remove sole $(srcdir),
# ${srcdir} and @srcdir@ entries from VPATH if srcdir is ".", strip leading and
# trailing colons and then remove the whole line if VPATH becomes empty
# (actually we leave an empty line to preserve line numbers).
if test "x$srcdir" = x.; then
  ac_vpsub='/^[	 ]*VPATH[	 ]*=[	 ]*/{
h
s///
s/^/:/
s/[	 ]*$/:/
s/:\$(srcdir):/:/g
s/:\${srcdir}:/:/g
s/:@srcdir@:/:/g
s/^:*//
s/:*$//
x
s/\(=[	 ]*\).*/\1/
G
s/\n//
s/^[^=]*=[	 ]*$//
}'
fi

cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
fi # test -n "$CONFIG_FILES"

# Set up the scripts for CONFIG_HEADERS section.
# No need to generate them if there are no CONFIG_HEADERS.
# This happens for instance with `./config.status Makefile'.
if test -n "$CONFIG_HEADERS"; then
cat >"$ac_tmp/defines.awk" <<\_ACAWK ||
BEGIN {
_ACEOF

# Transform confdefs.h into an awk script `defines.awk', embedded as
# here-document in config.status, that substitutes the proper values into
# config.h.in to produce config.h.

# Create a delimiter string that does not exist in confdefs.h, to ease
# handling of long lines.
ac_delim='%!_!# '
for ac_last_try in false false :; do
  ac_tt=`sed -n "/$ac_delim/p" confdefs.h`
  if test -z "$ac_tt"; then
    break
  elif $ac_last_try; then
    as_fn_error $? "could not make $CONFIG_HEADERS" "$LINENO" 5
  else
    ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
  fi
done

# For the awk script, D is an array of macro values keyed by name,
# likewise P contains macro parameters if any.  Preserve backslash
# newline sequences.

ac_word_re=[_$as_cr_Letters][_$as_cr_alnum]*
sed -n '
s/.\{148\}/&'"$ac_delim"'/g
t rset
:rset
s/^[	 ]*#[	 ]*define[	 ][	 ]*/ /
t def
d
:def
s/\\$//
t bsnl
s/["\\]/\\&/g
s/^ \('"$ac_word_re"'\)\(([^()]*)\)[	 ]*\(.*\)/P["\1"]="\2"\
D["\1"]=" \3"/p
s/^ \('"$ac_word_re"'\)[	 ]*\(.*\)/D["\1"]=" \2"/p
d
:bsnl
s/["\\]/\\&/g
s/^ \('"$ac_word_re"'\)\(([^()]*)\)[	 ]*\(.*\)/P["\1"]="\2"\
D["\1"]=" \3\\\\\\n"\\/p
t cont
s/^ \('"$ac_word_re"'\)[	 ]*\(.*\)/D["\1"]=" \2\\\\\\n"\\/p
t cont
d
:cont
n
s/.\{148\}/&'"$ac_delim"'/g
t clear
:clear
s/\\$//
t bsnlc
s/["\\]/\\&/g; s/^/"/; s/$/"/p
d
:bsnlc
s/["\\]/\\&/g; s/^/"/; s/$/\\\\\\n"\\/p
b cont
' <confdefs.h | sed '
s/'"$ac_delim"'/"\\\
"/g' >>$CONFIG_STATUS || ac_write_fail=1

cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
  for (key in D) D_is_set[key] = 1
  FS = ""
}
/^[\t ]*#[\t ]*(define|undef)[\t ]+$ac_word_re([\t (]|\$)/ {
  line = \$ 0
  split(line, arg, " ")
  if (arg[1] == "#") {
    defundef = arg[2]
    mac1 = arg[3]
  } else {
    defundef = substr(arg[1], 2)
    mac1 = arg[2]
  }
  split(mac1, mac2, "(") #)
  macro = mac2[1]
  prefix = substr(line, 1, index(line, defundef) - 1)
  if (D_is_set[macro]) {
    # Preserve the white space surrounding the "#".
    print prefix "define", macro P[macro] D[macro]
    next
  } else {
    # Replace #undef with comments.  This is necessary, for example,
    # in the case of _POSIX_SOURCE, which is predefined and required
    # on some systems where configure will not decide to define it.
    if (defundef == "undef") {
      print "/*", prefix defundef, macro, "*/"
      next
    }
  }
}
{ print }
_ACAWK
_ACEOF
cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
  as_fn_error $? "could not setup config headers machinery" "$LINENO" 5
fi # test -n "$CONFIG_HEADERS"


eval set X "  :F $CONFIG_FILES  :H $CONFIG_HEADERS    "
shift
for ac_tag
do
  case $ac_tag in
  :[FHLC]) ac_mode=$ac_tag; continue;;
  esac
  case $ac_mode$ac_tag in
  :[FHL]*:*);;
  :L* | :C*:*) as_fn_error $? "invalid tag \`$ac_tag'" "$LINENO" 5;;
  :[FH]-) ac_tag=-:-;;
  :[FH]*) ac_tag=$ac_tag:$ac_tag.in;;
  esac
  ac_save_IFS=$IFS
  IFS=:
  set x $ac_tag
  IFS=$ac_save_IFS
  shift
  ac_file=$1
  shift

  case $ac_mode in
  :L) ac_source=$1;;
  :[FH])
    ac_file_inputs=
    for ac_f
    do
      case $ac_f in
      -) ac_f="$ac_tmp/stdin";;
      *) # Look for the file first in the build tree, then in the source tree
	 # (if the path is not absolute).  The absolute path cannot be DOS-style,
	 # because $ac_f cannot contain `:'.
	 test -f "$ac_f" ||
	   case $ac_f in
	   [\\/$]*) false;;
	   *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";;
	   esac ||
	   as_fn_error 1 "cannot find input file: \`$ac_f'" "$LINENO" 5;;
      esac
      case $ac_f in *\'*) ac_f=`printf "%s\n" "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
      as_fn_append ac_file_inputs " '$ac_f'"
    done

    # Let's still pretend it is `configure' which instantiates (i.e., don't
    # use $as_me), people would be surprised to read:
    #    /* config.h.  Generated by config.status.  */
    configure_input='Generated from '`
	  printf "%s\n" "$*" | sed 's|^[^:]*/||;s|:[^:]*/|, |g'
	`' by configure.'
    if test x"$ac_file" != x-; then
      configure_input="$ac_file.  $configure_input"
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5
printf "%s\n" "$as_me: creating $ac_file" >&6;}
    fi
    # Neutralize special characters interpreted by sed in replacement strings.
    case $configure_input in #(
    *\&* | *\|* | *\\* )
       ac_sed_conf_input=`printf "%s\n" "$configure_input" |
       sed 's/[\\\\&|]/\\\\&/g'`;; #(
    *) ac_sed_conf_input=$configure_input;;
    esac

    case $ac_tag in
    *:-:* | *:-) cat >"$ac_tmp/stdin" \
      || as_fn_error $? "could not create $ac_file" "$LINENO" 5 ;;
    esac
    ;;
  esac

  ac_dir=`$as_dirname -- "$ac_file" ||
$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
	 X"$ac_file" : 'X\(//\)[^/]' \| \
	 X"$ac_file" : 'X\(//\)$' \| \
	 X"$ac_file" : 'X\(/\)' \| . 2>/dev/null ||
printf "%s\n" X"$ac_file" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
	    s//\1/
	    q
	  }
	  /^X\(\/\/\)[^/].*/{
	    s//\1/
	    q
	  }
	  /^X\(\/\/\)$/{
	    s//\1/
	    q
	  }
	  /^X\(\/\).*/{
	    s//\1/
	    q
	  }
	  s/.*/./; q'`
  as_dir="$ac_dir"; as_fn_mkdir_p
  ac_builddir=.

case "$ac_dir" in
.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
*)
  ac_dir_suffix=/`printf "%s\n" "$ac_dir" | sed 's|^\.[\\/]||'`
  # A ".." for each directory in $ac_dir_suffix.
  ac_top_builddir_sub=`printf "%s\n" "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
  case $ac_top_builddir_sub in
  "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
  *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
  esac ;;
esac
ac_abs_top_builddir=$ac_pwd
ac_abs_builddir=$ac_pwd$ac_dir_suffix
# for backward compatibility:
ac_top_builddir=$ac_top_build_prefix

case $srcdir in
  .)  # We are building in place.
    ac_srcdir=.
    ac_top_srcdir=$ac_top_builddir_sub
    ac_abs_top_srcdir=$ac_pwd ;;
  [\\/]* | ?:[\\/]* )  # Absolute name.
    ac_srcdir=$srcdir$ac_dir_suffix;
    ac_top_srcdir=$srcdir
    ac_abs_top_srcdir=$srcdir ;;
  *) # Relative name.
    ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
    ac_top_srcdir=$ac_top_build_prefix$srcdir
    ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
esac
ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix


  case $ac_mode in
  :F)
  #
  # CONFIG_FILE
  #

  case $INSTALL in
  [\\/$]* | ?:[\\/]* ) ac_INSTALL=$INSTALL ;;
  *) ac_INSTALL=$ac_top_build_prefix$INSTALL ;;
  esac
_ACEOF

cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
# If the template does not know about datarootdir, expand it.
# FIXME: This hack should be removed a few years after 2.60.
ac_datarootdir_hack=; ac_datarootdir_seen=
ac_sed_dataroot='
/datarootdir/ {
  p
  q
}
/@datadir@/p
/@docdir@/p
/@infodir@/p
/@localedir@/p
/@mandir@/p'
case `eval "sed -n \"\$ac_sed_dataroot\" $ac_file_inputs"` in
*datarootdir*) ac_datarootdir_seen=yes;;
*@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*)
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
printf "%s\n" "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
_ACEOF
cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
  ac_datarootdir_hack='
  s&@datadir@&$datadir&g
  s&@docdir@&$docdir&g
  s&@infodir@&$infodir&g
  s&@localedir@&$localedir&g
  s&@mandir@&$mandir&g
  s&\\\${datarootdir}&$datarootdir&g' ;;
esac
_ACEOF

# Neutralize VPATH when `$srcdir' = `.'.
# Shell code in configure.ac might set extrasub.
# FIXME: do we really want to maintain this feature?
cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
ac_sed_extra="$ac_vpsub
$extrasub
_ACEOF
cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
:t
/@[a-zA-Z_][a-zA-Z_0-9]*@/!b
s|@configure_input@|$ac_sed_conf_input|;t t
s&@top_builddir@&$ac_top_builddir_sub&;t t
s&@top_build_prefix@&$ac_top_build_prefix&;t t
s&@srcdir@&$ac_srcdir&;t t
s&@abs_srcdir@&$ac_abs_srcdir&;t t
s&@top_srcdir@&$ac_top_srcdir&;t t
s&@abs_top_srcdir@&$ac_abs_top_srcdir&;t t
s&@builddir@&$ac_builddir&;t t
s&@abs_builddir@&$ac_abs_builddir&;t t
s&@abs_top_builddir@&$ac_abs_top_builddir&;t t
s&@INSTALL@&$ac_INSTALL&;t t
$ac_datarootdir_hack
"
eval sed \"\$ac_sed_extra\" "$ac_file_inputs" | $AWK -f "$ac_tmp/subs.awk" \
  >$ac_tmp/out || as_fn_error $? "could not create $ac_file" "$LINENO" 5

test -z "$ac_datarootdir_hack$ac_datarootdir_seen" &&
  { ac_out=`sed -n '/\${datarootdir}/p' "$ac_tmp/out"`; test -n "$ac_out"; } &&
  { ac_out=`sed -n '/^[	 ]*datarootdir[	 ]*:*=/p' \
      "$ac_tmp/out"`; test -z "$ac_out"; } &&
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable \`datarootdir'
which seems to be undefined.  Please make sure it is defined" >&5
printf "%s\n" "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'
which seems to be undefined.  Please make sure it is defined" >&2;}

  rm -f "$ac_tmp/stdin"
  case $ac_file in
  -) cat "$ac_tmp/out" && rm -f "$ac_tmp/out";;
  *) rm -f "$ac_file" && mv "$ac_tmp/out" "$ac_file";;
  esac \
  || as_fn_error $? "could not create $ac_file" "$LINENO" 5
 ;;
  :H)
  #
  # CONFIG_HEADER
  #
  if test x"$ac_file" != x-; then
    {
      printf "%s\n" "/* $configure_input  */" >&1 \
      && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs"
    } >"$ac_tmp/config.h" \
      || as_fn_error $? "could not create $ac_file" "$LINENO" 5
    if diff "$ac_file" "$ac_tmp/config.h" >/dev/null 2>&1; then
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: $ac_file is unchanged" >&5
printf "%s\n" "$as_me: $ac_file is unchanged" >&6;}
    else
      rm -f "$ac_file"
      mv "$ac_tmp/config.h" "$ac_file" \
	|| as_fn_error $? "could not create $ac_file" "$LINENO" 5
    fi
  else
    printf "%s\n" "/* $configure_input  */" >&1 \
      && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs" \
      || as_fn_error $? "could not create -" "$LINENO" 5
  fi
 ;;


  esac


  case $ac_file$ac_mode in
    "include/click/config.h":H) echo > stamp-h ;;
    "bin/click-buildtool":F) chmod +x bin/click-buildtool ;;
    "bin/click-compile":F) chmod +x bin/click-compile ;;
    "installch":F) chmod +x installch ;;

  esac
done # for ac_tag


as_fn_exit 0
_ACEOF
ac_clean_files=$ac_clean_files_save

test $ac_write_fail = 0 ||
  as_fn_error $? "write failure creating $CONFIG_STATUS" "$LINENO" 5


# configure is writing to config.log, and then calls config.status.
# config.status does its own redirection, appending to config.log.
# Unfortunately, on DOS this fails, as config.log is still kept open
# by configure, so config.status won't be able to write to it; its
# output is simply discarded.  So we exec the FD to /dev/null,
# effectively closing config.log, so it can be properly (re)opened and
# appended to by config.status.  When coming back to configure, we
# need to make the FD available again.
if test "$no_create" != yes; then
  ac_cs_success=:
  ac_config_status_args=
  test "$silent" = yes &&
    ac_config_status_args="$ac_config_status_args --quiet"
  exec 5>/dev/null
  $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false
  exec 5>>config.log
  # Use ||, not &&, to avoid exiting from the if with $? = 1, which
  # would make configure fail if this is the last instruction.
  $ac_cs_success || as_fn_exit 1
fi
if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
printf "%s\n" "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
fi


feedback="no"

if test "$enable_flow_api$have_flow_api" = "yesno"; then
    feedback="To enable DPDK's Flow Rule Manager (rte_flow API), use a DPDK version >= 20.02."
fi

if test "x$enable_dpdk" != "xno"; then
    dpdk_info="${enable_dpdk}
    DPDK    Target:              ${RTE_TARGET}
    DPDK   Version:              ${RTE_VER_YEAR}.${RTE_VER_MONTH}
    DPDK      Path:              ${RTE_SDK}
    DPDK     build:              ${dpdk_sys}
    DPDK  Location:              ${RTE_LIB}"
else
    dpdk_info=${enable_dpdk}
fi

echo "

Configuration Summary:
    C     Compiler:              ${CC}
    C++   Compiler:              ${CXX}
    CFLAGS:                      ${CFLAGS}
    CXXFLAGS:                    ${CXXFLAGS}

          Batching:              ${enable_batch}
    Flow Subsystem:              ${enable_flow}
 Context Subsystem:              ${enable_ctx}
       HW Flow API:              ${have_flow_api}

    DPDK   support:              ${dpdk_info}

    RSS++  support:              ${enable_rsspp}

    Netmap support:              ${HAVE_NETMAP}
    PCAP   support:              ${have_pcap}

    PAPI   support:              ${have_papi}
    RE2    support:              ${have_re2}
    BPF    support:              ${have_libbpf}
    HTTPD  support:              ${have_httpd}
    libpci support:              ${have_pci}
    LLVM   support:              ${have_llvm}
"

if test "$feedback" != no; then
    echo ""
    echo $feedback
    echo ""
else
    echo "Now type make to build FastClick..."
fi