/
libtool.m4
3397 lines (3042 loc) · 110 KB
/
libtool.m4
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# libtool.m4 - Configure libtool for the host system. -*-Shell-script-*-
## Copyright 1996, 1997, 1998, 1999, 2000, 2001
## Free Software Foundation, Inc.
## Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
##
## This program is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 2 of the License, or
## (at your option) any later version.
##
## This program is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
## General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with this program; if not, write to the Free Software
## Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
##
## As a special exception to the GNU General Public License, if you
## distribute this file as part of a program that contains a
## configuration script generated by Autoconf, you may include it under
## the same distribution terms that you use for the rest of that program.
# serial 46 AC_PROG_LIBTOOL
AC_DEFUN([AC_PROG_LIBTOOL],
[AC_REQUIRE([AC_LIBTOOL_SETUP])dnl
# This can be used to rebuild libtool when needed
LIBTOOL_DEPS="$ac_aux_dir/ltmain.sh"
# Always use our own libtool.
LIBTOOL='$(SHELL) $(top_builddir)/libtool'
AC_SUBST(LIBTOOL)dnl
# Prevent multiple expansion
define([AC_PROG_LIBTOOL], [])
])
AC_DEFUN([AC_LIBTOOL_SETUP],
[AC_PREREQ(2.13)dnl
AC_REQUIRE([AC_ENABLE_SHARED])dnl
AC_REQUIRE([AC_ENABLE_STATIC])dnl
AC_REQUIRE([AC_ENABLE_FAST_INSTALL])dnl
AC_REQUIRE([AC_CANONICAL_HOST])dnl
AC_REQUIRE([AC_CANONICAL_BUILD])dnl
AC_REQUIRE([AC_PROG_CC])dnl
AC_REQUIRE([AC_PROG_LD])dnl
AC_REQUIRE([AC_PROG_LD_RELOAD_FLAG])dnl
AC_REQUIRE([AC_PROG_NM])dnl
AC_REQUIRE([AC_PROG_LN_S])dnl
AC_REQUIRE([AC_DEPLIBS_CHECK_METHOD])dnl
AC_REQUIRE([AC_OBJEXT])dnl
AC_REQUIRE([AC_EXEEXT])dnl
dnl
_LT_AC_PROG_ECHO_BACKSLASH
# Only perform the check for file, if the check method requires it
case $deplibs_check_method in
file_magic*)
if test "$file_magic_cmd" = '$MAGIC_CMD'; then
AC_PATH_MAGIC
fi
;;
esac
AC_CHECK_TOOL(RANLIB, ranlib, :)
AC_CHECK_TOOL(STRIP, strip, :)
ifdef([AC_PROVIDE_AC_LIBTOOL_DLOPEN], enable_dlopen=yes, enable_dlopen=no)
ifdef([AC_PROVIDE_AC_LIBTOOL_WIN32_DLL],
enable_win32_dll=yes, enable_win32_dll=no)
AC_ARG_ENABLE(libtool-lock,
[ --disable-libtool-lock avoid locking (might break parallel builds)])
test "x$enable_libtool_lock" != xno && enable_libtool_lock=yes
# Some flags need to be propagated to the compiler or linker for good
# libtool support.
case $host in
*-*-irix6*)
# Find out which ABI we are using.
echo '[#]line __oline__ "configure"' > conftest.$ac_ext
if AC_TRY_EVAL(ac_compile); then
case `/usr/bin/file conftest.$ac_objext` in
*32-bit*)
LD="${LD-ld} -32"
;;
*N32*)
LD="${LD-ld} -n32"
;;
*64-bit*)
LD="${LD-ld} -64"
;;
esac
fi
rm -rf conftest*
;;
*-*-sco3.2v5*)
# On SCO OpenServer 5, we need -belf to get full-featured binaries.
SAVE_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -belf"
AC_CACHE_CHECK([whether the C compiler needs -belf], lt_cv_cc_needs_belf,
[AC_LANG_SAVE
AC_LANG_C
AC_TRY_LINK([],[],[lt_cv_cc_needs_belf=yes],[lt_cv_cc_needs_belf=no])
AC_LANG_RESTORE])
if test x"$lt_cv_cc_needs_belf" != x"yes"; then
# this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf
CFLAGS="$SAVE_CFLAGS"
fi
;;
ifdef([AC_PROVIDE_AC_LIBTOOL_WIN32_DLL],
[*-*-cygwin* | *-*-mingw* | *-*-pw32*)
AC_CHECK_TOOL(DLLTOOL, dlltool, false)
AC_CHECK_TOOL(AS, as, false)
AC_CHECK_TOOL(OBJDUMP, objdump, false)
# recent cygwin and mingw systems supply a stub DllMain which the user
# can override, but on older systems we have to supply one
AC_CACHE_CHECK([if libtool should supply DllMain function], lt_cv_need_dllmain,
[AC_TRY_LINK([],
[extern int __attribute__((__stdcall__)) DllMain(void*, int, void*);
DllMain (0, 0, 0);],
[lt_cv_need_dllmain=no],[lt_cv_need_dllmain=yes])])
case $host/$CC in
*-*-cygwin*/gcc*-mno-cygwin*|*-*-mingw*)
# old mingw systems require "-dll" to link a DLL, while more recent ones
# require "-mdll"
SAVE_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -mdll"
AC_CACHE_CHECK([how to link DLLs], lt_cv_cc_dll_switch,
[AC_TRY_LINK([], [], [lt_cv_cc_dll_switch=-mdll],[lt_cv_cc_dll_switch=-dll])])
CFLAGS="$SAVE_CFLAGS" ;;
*-*-cygwin* | *-*-pw32*)
# cygwin systems need to pass --dll to the linker, and not link
# crt.o which will require a WinMain@16 definition.
lt_cv_cc_dll_switch="-Wl,--dll -nostartfiles" ;;
esac
;;
])
esac
_LT_AC_LTCONFIG_HACK
])
# _LT_AC_CHECK_DLFCN
# --------------------
AC_DEFUN(_LT_AC_CHECK_DLFCN,
[AC_CHECK_HEADERS(dlfcn.h)
])# _LT_AC_CHECK_DLFCN
# AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE
# ---------------------------------
AC_DEFUN([AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE],
[AC_REQUIRE([AC_CANONICAL_HOST])
AC_REQUIRE([AC_PROG_NM])
AC_REQUIRE([AC_OBJEXT])
# Check for command to grab the raw symbol name followed by C symbol from nm.
AC_MSG_CHECKING([command to parse $NM output])
AC_CACHE_VAL([lt_cv_sys_global_symbol_pipe], [dnl
# These are sane defaults that work on at least a few old systems.
# [They come from Ultrix. What could be older than Ultrix?!! ;)]
# Character class describing NM global symbol codes.
[symcode='[BCDEGRST]']
# Regexp to match symbols that can be accessed directly from C.
[sympat='\([_A-Za-z][_A-Za-z0-9]*\)']
# Transform the above into a raw symbol and a C symbol.
symxfrm='\1 \2\3 \3'
# Transform an extracted symbol line into a proper C declaration
lt_cv_global_symbol_to_cdecl="sed -n -e 's/^. .* \(.*\)$/extern char \1;/p'"
# Define system-specific variables.
case $host_os in
aix*)
[symcode='[BCDT]']
;;
cygwin* | mingw* | pw32*)
[symcode='[ABCDGISTW]']
;;
hpux*) # Its linker distinguishes data from code symbols
lt_cv_global_symbol_to_cdecl="sed -n -e 's/^T .* \(.*\)$/extern char \1();/p' -e 's/^$symcode* .* \(.*\)$/extern char \1;/p'"
;;
irix*)
[symcode='[BCDEGRST]']
;;
solaris* | sysv5*)
[symcode='[BDT]']
;;
sysv4)
[symcode='[DFNSTU]']
;;
esac
# Handle CRLF in mingw tool chain
opt_cr=
case $host_os in
mingw*)
opt_cr=`echo 'x\{0,1\}' | tr x '\015'` # option cr in regexp
;;
esac
# If we're using GNU nm, then use its standard symbol codes.
if $NM -V 2>&1 | egrep '(GNU|with BFD)' > /dev/null; then
[symcode='[ABCDGISTW]']
fi
# Try without a prefix undercore, then with it.
for ac_symprfx in "" "_"; do
# Write the raw and C identifiers.
[lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[ ]\($symcode$symcode*\)[ ][ ]*\($ac_symprfx\)$sympat$opt_cr$/$symxfrm/p'"]
# Check to see that the pipe works correctly.
pipe_works=no
rm -f conftest*
cat > conftest.$ac_ext <<EOF
#ifdef __cplusplus
extern "C" {
#endif
char nm_test_var;
void nm_test_func(){}
#ifdef __cplusplus
}
#endif
int main(){nm_test_var='a';nm_test_func();return(0);}
EOF
if AC_TRY_EVAL(ac_compile); then
# Now try to grab the symbols.
nlist=conftest.nm
if AC_TRY_EVAL(NM conftest.$ac_objext \| $lt_cv_sys_global_symbol_pipe \> $nlist) && test -s "$nlist"; then
# Try sorting and uniquifying the output.
if sort "$nlist" | uniq > "$nlist"T; then
mv -f "$nlist"T "$nlist"
else
rm -f "$nlist"T
fi
# Make sure that we snagged all the symbols we need.
if egrep ' nm_test_var$' "$nlist" >/dev/null; then
if egrep ' nm_test_func$' "$nlist" >/dev/null; then
cat <<EOF > conftest.$ac_ext
#ifdef __cplusplus
extern "C" {
#endif
EOF
# Now generate the symbol file.
eval "$lt_cv_global_symbol_to_cdecl"' < "$nlist" >> conftest.$ac_ext'
cat <<EOF >> conftest.$ac_ext
#if defined (__STDC__) && __STDC__
# define lt_ptr_t void *
#else
# define lt_ptr_t char *
# define const
#endif
/* The mapping between symbol names and symbols. */
const struct {
const char *name;
lt_ptr_t address;
}
[lt_preloaded_symbols[] =]
{
EOF
sed "s/^$symcode$symcode* \(.*\) \(.*\)$/ {\"\2\", (lt_ptr_t) \&\2},/" < "$nlist" >> conftest.$ac_ext
cat <<\EOF >> conftest.$ac_ext
{0, (lt_ptr_t) 0}
};
#ifdef __cplusplus
}
#endif
EOF
# Now try linking the two files.
mv conftest.$ac_objext conftstm.$ac_objext
save_LIBS="$LIBS"
save_CFLAGS="$CFLAGS"
LIBS="conftstm.$ac_objext"
CFLAGS="$CFLAGS$no_builtin_flag"
if AC_TRY_EVAL(ac_link) && test -s conftest; then
pipe_works=yes
fi
LIBS="$save_LIBS"
CFLAGS="$save_CFLAGS"
else
echo "cannot find nm_test_func in $nlist" >&AC_FD_CC
fi
else
echo "cannot find nm_test_var in $nlist" >&AC_FD_CC
fi
else
echo "cannot run $lt_cv_sys_global_symbol_pipe" >&AC_FD_CC
fi
else
echo "$progname: failed program was:" >&AC_FD_CC
cat conftest.$ac_ext >&5
fi
rm -f conftest* conftst*
# Do not use the global_symbol_pipe unless it works.
if test "$pipe_works" = yes; then
break
else
lt_cv_sys_global_symbol_pipe=
fi
done
])
global_symbol_pipe="$lt_cv_sys_global_symbol_pipe"
if test -z "$lt_cv_sys_global_symbol_pipe"; then
global_symbol_to_cdecl=
else
global_symbol_to_cdecl="$lt_cv_global_symbol_to_cdecl"
fi
if test -z "$global_symbol_pipe$global_symbol_to_cdecl"; then
AC_MSG_RESULT(failed)
else
AC_MSG_RESULT(ok)
fi
]) # AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE
# _LT_AC_LIBTOOL_SYS_PATH_SEPARATOR
# ---------------------------------
AC_DEFUN([_LT_AC_LIBTOOL_SYS_PATH_SEPARATOR],
[# Find the correct PATH separator. Usually this is `:', but
# DJGPP uses `;' like DOS.
if test "X${PATH_SEPARATOR+set}" != Xset; then
UNAME=${UNAME-`uname 2>/dev/null`}
case X$UNAME in
*-DOS) lt_cv_sys_path_separator=';' ;;
*) lt_cv_sys_path_separator=':' ;;
esac
fi
])# _LT_AC_LIBTOOL_SYS_PATH_SEPARATOR
# _LT_AC_PROG_ECHO_BACKSLASH
# --------------------------
# Add some code to the start of the generated configure script which
# will find an echo command which doesn;t interpret backslashes.
AC_DEFUN([_LT_AC_PROG_ECHO_BACKSLASH],
[ifdef([AC_DIVERSION_NOTICE], [AC_DIVERT_PUSH(AC_DIVERSION_NOTICE)],
[AC_DIVERT_PUSH(NOTICE)])
_LT_AC_LIBTOOL_SYS_PATH_SEPARATOR
# Check that we are running under the correct shell.
SHELL=${CONFIG_SHELL-/bin/sh}
case X$ECHO in
X*--fallback-echo)
# Remove one level of quotation (which was required for Make).
ECHO=`echo "$ECHO" | sed 's,\\\\\[$]\\[$]0,'[$]0','`
;;
esac
echo=${ECHO-echo}
if test "X[$]1" = X--no-reexec; then
# Discard the --no-reexec flag, and continue.
shift
elif test "X[$]1" = X--fallback-echo; then
# Avoid inline document here, it may be left over
:
elif test "X`($echo '\t') 2>/dev/null`" = 'X\t'; then
# Yippee, $echo works!
:
else
# Restart under the correct shell.
exec $SHELL "[$]0" --no-reexec ${1+"[$]@"}
fi
if test "X[$]1" = X--fallback-echo; then
# used as fallback echo
shift
cat <<EOF
$*
EOF
exit 0
fi
# The HP-UX ksh and POSIX shell print the target directory to stdout
# if CDPATH is set.
if test "X${CDPATH+set}" = Xset; then CDPATH=:; export CDPATH; fi
if test -z "$ECHO"; then
if test "X${echo_test_string+set}" != Xset; then
# find a string as large as possible, as long as the shell can cope with it
for cmd in 'sed 50q "[$]0"' 'sed 20q "[$]0"' 'sed 10q "[$]0"' 'sed 2q "[$]0"' 'echo test'; do
# expected sizes: less than 2Kb, 1Kb, 512 bytes, 16 bytes, ...
if (echo_test_string="`eval $cmd`") 2>/dev/null &&
echo_test_string="`eval $cmd`" &&
(test "X$echo_test_string" = "X$echo_test_string") 2>/dev/null
then
break
fi
done
fi
if test "X`($echo '\t') 2>/dev/null`" = 'X\t' &&
echo_testing_string=`($echo "$echo_test_string") 2>/dev/null` &&
test "X$echo_testing_string" = "X$echo_test_string"; then
:
else
# The Solaris, AIX, and Digital Unix default echo programs unquote
# backslashes. This makes it impossible to quote backslashes using
# echo "$something" | sed 's/\\/\\\\/g'
#
# So, first we look for a working echo in the user's PATH.
IFS="${IFS= }"; save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR}"
for dir in $PATH /usr/ucb; do
if (test -f $dir/echo || test -f $dir/echo$ac_exeext) &&
test "X`($dir/echo '\t') 2>/dev/null`" = 'X\t' &&
echo_testing_string=`($dir/echo "$echo_test_string") 2>/dev/null` &&
test "X$echo_testing_string" = "X$echo_test_string"; then
echo="$dir/echo"
break
fi
done
IFS="$save_ifs"
if test "X$echo" = Xecho; then
# We didn't find a better echo, so look for alternatives.
if test "X`(print -r '\t') 2>/dev/null`" = 'X\t' &&
echo_testing_string=`(print -r "$echo_test_string") 2>/dev/null` &&
test "X$echo_testing_string" = "X$echo_test_string"; then
# This shell has a builtin print -r that does the trick.
echo='print -r'
elif (test -f /bin/ksh || test -f /bin/ksh$ac_exeext) &&
test "X$CONFIG_SHELL" != X/bin/ksh; then
# If we have ksh, try running configure again with it.
ORIGINAL_CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
export ORIGINAL_CONFIG_SHELL
CONFIG_SHELL=/bin/ksh
export CONFIG_SHELL
exec $CONFIG_SHELL "[$]0" --no-reexec ${1+"[$]@"}
else
# Try using printf.
echo='printf %s\n'
if test "X`($echo '\t') 2>/dev/null`" = 'X\t' &&
echo_testing_string=`($echo "$echo_test_string") 2>/dev/null` &&
test "X$echo_testing_string" = "X$echo_test_string"; then
# Cool, printf works
:
elif echo_testing_string=`($ORIGINAL_CONFIG_SHELL "[$]0" --fallback-echo '\t') 2>/dev/null` &&
test "X$echo_testing_string" = 'X\t' &&
echo_testing_string=`($ORIGINAL_CONFIG_SHELL "[$]0" --fallback-echo "$echo_test_string") 2>/dev/null` &&
test "X$echo_testing_string" = "X$echo_test_string"; then
CONFIG_SHELL=$ORIGINAL_CONFIG_SHELL
export CONFIG_SHELL
SHELL="$CONFIG_SHELL"
export SHELL
echo="$CONFIG_SHELL [$]0 --fallback-echo"
elif echo_testing_string=`($CONFIG_SHELL "[$]0" --fallback-echo '\t') 2>/dev/null` &&
test "X$echo_testing_string" = 'X\t' &&
echo_testing_string=`($CONFIG_SHELL "[$]0" --fallback-echo "$echo_test_string") 2>/dev/null` &&
test "X$echo_testing_string" = "X$echo_test_string"; then
echo="$CONFIG_SHELL [$]0 --fallback-echo"
else
# maybe with a smaller string...
prev=:
for cmd in 'echo test' 'sed 2q "[$]0"' 'sed 10q "[$]0"' 'sed 20q "[$]0"' 'sed 50q "[$]0"'; do
if (test "X$echo_test_string" = "X`eval $cmd`") 2>/dev/null
then
break
fi
prev="$cmd"
done
if test "$prev" != 'sed 50q "[$]0"'; then
echo_test_string=`eval $prev`
export echo_test_string
exec ${ORIGINAL_CONFIG_SHELL-${CONFIG_SHELL-/bin/sh}} "[$]0" ${1+"[$]@"}
else
# Oops. We lost completely, so just stick with echo.
echo=echo
fi
fi
fi
fi
fi
fi
# Copy echo and quote the copy suitably for passing to libtool from
# the Makefile, instead of quoting the original, which is used later.
ECHO=$echo
if test "X$ECHO" = "X$CONFIG_SHELL [$]0 --fallback-echo"; then
ECHO="$CONFIG_SHELL \\\$\[$]0 --fallback-echo"
fi
AC_SUBST(ECHO)
AC_DIVERT_POP
])# _LT_AC_PROG_ECHO_BACKSLASH
# _LT_AC_TRY_DLOPEN_SELF (ACTION-IF-TRUE, ACTION-IF-TRUE-W-USCORE,
# ACTION-IF-FALSE, ACTION-IF-CROSS-COMPILING)
# ------------------------------------------------------------------
AC_DEFUN(_LT_AC_TRY_DLOPEN_SELF,
[if test "$cross_compiling" = yes; then :
[$4]
else
AC_REQUIRE([_LT_AC_CHECK_DLFCN])dnl
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<EOF
[#line __oline__ "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
#include <dlfcn.h>
#endif
#include <stdio.h>
#ifdef RTLD_GLOBAL
# define LT_DLGLOBAL RTLD_GLOBAL
#else
# ifdef DL_GLOBAL
# define LT_DLGLOBAL DL_GLOBAL
# else
# define LT_DLGLOBAL 0
# endif
#endif
/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
find out it does not work in some platform. */
#ifndef LT_DLLAZY_OR_NOW
# ifdef RTLD_LAZY
# define LT_DLLAZY_OR_NOW RTLD_LAZY
# else
# ifdef DL_LAZY
# define LT_DLLAZY_OR_NOW DL_LAZY
# else
# ifdef RTLD_NOW
# define LT_DLLAZY_OR_NOW RTLD_NOW
# else
# ifdef DL_NOW
# define LT_DLLAZY_OR_NOW DL_NOW
# else
# define LT_DLLAZY_OR_NOW 0
# endif
# endif
# endif
# endif
#endif
#ifdef __cplusplus
extern "C" void exit (int);
#endif
void fnord() { int i=42;}
int main ()
{
void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
int status = $lt_dlunknown;
if (self)
{
if (dlsym (self,"fnord")) status = $lt_dlno_uscore;
else if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore;
/* dlclose (self); */
}
exit (status);
}]
EOF
if AC_TRY_EVAL(ac_link) && test -s conftest${ac_exeext} 2>/dev/null; then
(./conftest; exit; ) 2>/dev/null
lt_status=$?
case x$lt_status in
x$lt_dlno_uscore) $1 ;;
x$lt_dlneed_uscore) $2 ;;
x$lt_unknown|x*) $3 ;;
esac
else :
# compilation failed
$3
fi
fi
rm -fr conftest*
])# _LT_AC_TRY_DLOPEN_SELF
# AC_LIBTOOL_DLOPEN_SELF
# -------------------
AC_DEFUN(AC_LIBTOOL_DLOPEN_SELF,
[if test "x$enable_dlopen" != xyes; then
enable_dlopen=unknown
enable_dlopen_self=unknown
enable_dlopen_self_static=unknown
else
lt_cv_dlopen=no
lt_cv_dlopen_libs=
case $host_os in
beos*)
lt_cv_dlopen="load_add_on"
lt_cv_dlopen_libs=
lt_cv_dlopen_self=yes
;;
cygwin* | mingw* | pw32*)
lt_cv_dlopen="LoadLibrary"
lt_cv_dlopen_libs=
;;
*)
AC_CHECK_LIB(dl, dlopen, [lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"],
[AC_CHECK_FUNC(dlopen, lt_cv_dlopen="dlopen",
[AC_CHECK_FUNC(shl_load, lt_cv_dlopen="shl_load",
[AC_CHECK_LIB(svld, dlopen,
[lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-lsvld"],
[AC_CHECK_LIB(dld, shl_load,
[lt_cv_dlopen="dld_link" lt_cv_dlopen_libs="-dld"])
])
])
])
])
;;
esac
if test "x$lt_cv_dlopen" != xno; then
enable_dlopen=yes
else
enable_dlopen=no
fi
case $lt_cv_dlopen in
dlopen)
save_CPPFLAGS="$CPPFLAGS"
AC_REQUIRE([_LT_AC_CHECK_DLFCN])dnl
test "x$ac_cv_header_dlfcn_h" = xyes && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H"
save_LDFLAGS="$LDFLAGS"
eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\"
save_LIBS="$LIBS"
LIBS="$lt_cv_dlopen_libs $LIBS"
AC_CACHE_CHECK([whether a program can dlopen itself],
lt_cv_dlopen_self, [dnl
_LT_AC_TRY_DLOPEN_SELF(
lt_cv_dlopen_self=yes, lt_cv_dlopen_self=yes,
lt_cv_dlopen_self=no, lt_cv_dlopen_self=cross)
])
if test "x$lt_cv_dlopen_self" = xyes; then
LDFLAGS="$LDFLAGS $link_static_flag"
AC_CACHE_CHECK([whether a statically linked program can dlopen itself],
lt_cv_dlopen_self_static, [dnl
_LT_AC_TRY_DLOPEN_SELF(
lt_cv_dlopen_self_static=yes, lt_cv_dlopen_self_static=yes,
lt_cv_dlopen_self_static=no, lt_cv_dlopen_self_static=cross)
])
fi
CPPFLAGS="$save_CPPFLAGS"
LDFLAGS="$save_LDFLAGS"
LIBS="$save_LIBS"
;;
esac
case $lt_cv_dlopen_self in
yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;;
*) enable_dlopen_self=unknown ;;
esac
case $lt_cv_dlopen_self_static in
yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;;
*) enable_dlopen_self_static=unknown ;;
esac
fi
])# AC_LIBTOOL_DLOPEN_SELF
AC_DEFUN([_LT_AC_LTCONFIG_HACK],
[AC_REQUIRE([AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE])dnl
# Sed substitution that helps us do robust quoting. It backslashifies
# metacharacters that are still active within double-quoted strings.
Xsed='sed -e s/^X//'
[sed_quote_subst='s/\([\\"\\`$\\\\]\)/\\\1/g']
# Same as above, but do not quote variable references.
[double_quote_subst='s/\([\\"\\`\\\\]\)/\\\1/g']
# Sed substitution to delay expansion of an escaped shell variable in a
# double_quote_subst'ed string.
delay_variable_subst='s/\\\\\\\\\\\$/\\\\\\$/g'
# Constants:
rm="rm -f"
# Global variables:
default_ofile=libtool
can_build_shared=yes
# All known linkers require a `.a' archive for static linking (except M$VC,
# which needs '.lib').
libext=a
ltmain="$ac_aux_dir/ltmain.sh"
ofile="$default_ofile"
with_gnu_ld="$lt_cv_prog_gnu_ld"
need_locks="$enable_libtool_lock"
old_CC="$CC"
old_CFLAGS="$CFLAGS"
# Set sane defaults for various variables
test -z "$AR" && AR=ar
test -z "$AR_FLAGS" && AR_FLAGS=cru
test -z "$AS" && AS=as
test -z "$CC" && CC=cc
test -z "$DLLTOOL" && DLLTOOL=dlltool
test -z "$LD" && LD=ld
test -z "$LN_S" && LN_S="ln -s"
test -z "$MAGIC_CMD" && MAGIC_CMD=file
test -z "$NM" && NM=nm
test -z "$OBJDUMP" && OBJDUMP=objdump
test -z "$RANLIB" && RANLIB=:
test -z "$STRIP" && STRIP=:
test -z "$ac_objext" && ac_objext=o
if test x"$host" != x"$build"; then
ac_tool_prefix=${host_alias}-
else
ac_tool_prefix=
fi
# Transform linux* to *-*-linux-gnu*, to support old configure scripts.
case $host_os in
linux-gnu*) ;;
linux*) host=`echo $host | sed 's/^\(.*-.*-linux\)\(.*\)$/\1-gnu\2/'`
esac
case $host_os in
aix3*)
# AIX sometimes has problems with the GCC collect2 program. For some
# reason, if we set the COLLECT_NAMES environment variable, the problems
# vanish in a puff of smoke.
if test "X${COLLECT_NAMES+set}" != Xset; then
COLLECT_NAMES=
export COLLECT_NAMES
fi
;;
esac
# Determine commands to create old-style static archives.
old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs$old_deplibs'
old_postinstall_cmds='chmod 644 $oldlib'
old_postuninstall_cmds=
if test -n "$RANLIB"; then
old_archive_cmds="$old_archive_cmds~\$RANLIB \$oldlib"
old_postinstall_cmds="\$RANLIB \$oldlib~$old_postinstall_cmds"
fi
# Allow CC to be a program name with arguments.
set dummy $CC
compiler="[$]2"
## FIXME: this should be a separate macro
##
AC_MSG_CHECKING([for objdir])
rm -f .libs 2>/dev/null
mkdir .libs 2>/dev/null
if test -d .libs; then
objdir=.libs
else
# MS-DOS does not allow filenames that begin with a dot.
objdir=_libs
fi
rmdir .libs 2>/dev/null
AC_MSG_RESULT($objdir)
##
## END FIXME
## FIXME: this should be a separate macro
##
AC_ARG_WITH(pic,
[ --with-pic try to use only PIC/non-PIC objects [default=use both]],
pic_mode="$withval", pic_mode=default)
test -z "$pic_mode" && pic_mode=default
# We assume here that the value for lt_cv_prog_cc_pic will not be cached
# in isolation, and that seeing it set (from the cache) indicates that
# the associated values are set (in the cache) correctly too.
AC_MSG_CHECKING([for $compiler option to produce PIC])
AC_CACHE_VAL(lt_cv_prog_cc_pic,
[ lt_cv_prog_cc_pic=
lt_cv_prog_cc_shlib=
lt_cv_prog_cc_wl=
lt_cv_prog_cc_static=
lt_cv_prog_cc_no_builtin=
lt_cv_prog_cc_can_build_shared=$can_build_shared
if test "$GCC" = yes; then
lt_cv_prog_cc_wl='-Wl,'
lt_cv_prog_cc_static='-static'
case $host_os in
aix*)
# Below there is a dirty hack to force normal static linking with -ldl
# The problem is because libdl dynamically linked with both libc and
# libC (AIX C++ library), which obviously doesn't included in libraries
# list by gcc. This cause undefined symbols with -static flags.
# This hack allows C programs to be linked with "-static -ldl", but
# we not sure about C++ programs.
lt_cv_prog_cc_static="$lt_cv_prog_cc_static ${lt_cv_prog_cc_wl}-lC"
;;
amigaos*)
# FIXME: we need at least 68020 code to build shared libraries, but
# adding the `-m68020' flag to GCC prevents building anything better,
# like `-m68040'.
lt_cv_prog_cc_pic='-m68020 -resident32 -malways-restore-a4'
;;
beos* | irix5* | irix6* | osf3* | osf4* | osf5*)
# PIC is the default for these OSes.
;;
darwin* | rhapsody*)
# PIC is the default on this platform
# Common symbols not allowed in MH_DYLIB files
lt_cv_prog_cc_pic='-fno-common'
;;
cygwin* | mingw* | pw32* | os2*)
# This hack is so that the source file can tell whether it is being
# built for inclusion in a dll (and should export symbols for example).
lt_cv_prog_cc_pic='-DDLL_EXPORT'
;;
sysv4*MP*)
if test -d /usr/nec; then
lt_cv_prog_cc_pic=-Kconform_pic
fi
;;
*)
lt_cv_prog_cc_pic='-fPIC'
;;
esac
else
# PORTME Check for PIC flags for the system compiler.
case $host_os in
aix3* | aix4* | aix5*)
# All AIX code is PIC.
if test "$host_cpu" = ia64; then
# AIX 5 now supports IA64 processor
lt_cv_prog_cc_static='-Bstatic'
lt_cv_prog_cc_wl='-Wl,'
else
lt_cv_prog_cc_static='-bnso -bI:/lib/syscalls.exp'
fi
;;
hpux9* | hpux10* | hpux11*)
# Is there a better lt_cv_prog_cc_static that works with the bundled CC?
lt_cv_prog_cc_wl='-Wl,'
lt_cv_prog_cc_static="${lt_cv_prog_cc_wl}-a ${lt_cv_prog_cc_wl}archive"
lt_cv_prog_cc_pic='+Z'
;;
irix5* | irix6*)
lt_cv_prog_cc_wl='-Wl,'
lt_cv_prog_cc_static='-non_shared'
# PIC (with -KPIC) is the default.
;;
cygwin* | mingw* | pw32* | os2*)
# This hack is so that the source file can tell whether it is being
# built for inclusion in a dll (and should export symbols for example).
lt_cv_prog_cc_pic='-DDLL_EXPORT'
;;
newsos6)
lt_cv_prog_cc_pic='-KPIC'
lt_cv_prog_cc_static='-Bstatic'
;;
osf3* | osf4* | osf5*)
# All OSF/1 code is PIC.
lt_cv_prog_cc_wl='-Wl,'
lt_cv_prog_cc_static='-non_shared'
;;
sco3.2v5*)
lt_cv_prog_cc_pic='-Kpic'
lt_cv_prog_cc_static='-dn'
lt_cv_prog_cc_shlib='-belf'
;;
solaris*)
lt_cv_prog_cc_pic='-KPIC'
lt_cv_prog_cc_static='-Bstatic'
lt_cv_prog_cc_wl='-Wl,'
;;
sunos4*)
lt_cv_prog_cc_pic='-PIC'
lt_cv_prog_cc_static='-Bstatic'
lt_cv_prog_cc_wl='-Qoption ld '
;;
sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
lt_cv_prog_cc_pic='-KPIC'
lt_cv_prog_cc_static='-Bstatic'
if test "x$host_vendor" = xsni; then
lt_cv_prog_cc_wl='-LD'
else
lt_cv_prog_cc_wl='-Wl,'
fi
;;
uts4*)
lt_cv_prog_cc_pic='-pic'
lt_cv_prog_cc_static='-Bstatic'
;;
sysv4*MP*)
if test -d /usr/nec ;then
lt_cv_prog_cc_pic='-Kconform_pic'
lt_cv_prog_cc_static='-Bstatic'
fi
;;
*)
lt_cv_prog_cc_can_build_shared=no
;;
esac
fi
])
if test -z "$lt_cv_prog_cc_pic"; then
AC_MSG_RESULT([none])
else
AC_MSG_RESULT([$lt_cv_prog_cc_pic])
# Check to make sure the pic_flag actually works.
AC_MSG_CHECKING([if $compiler PIC flag $lt_cv_prog_cc_pic works])
AC_CACHE_VAL(lt_cv_prog_cc_pic_works, [dnl
save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $lt_cv_prog_cc_pic -DPIC"
AC_TRY_COMPILE([], [], [dnl
case $host_os in
hpux9* | hpux10* | hpux11*)
# On HP-UX, both CC and GCC only warn that PIC is supported... then
# they create non-PIC objects. So, if there were any warnings, we
# assume that PIC is not supported.
if test -s conftest.err; then
lt_cv_prog_cc_pic_works=no
else
lt_cv_prog_cc_pic_works=yes
fi
;;
*)
lt_cv_prog_cc_pic_works=yes
;;
esac
], [dnl
lt_cv_prog_cc_pic_works=no
])
CFLAGS="$save_CFLAGS"
])
if test "X$lt_cv_prog_cc_pic_works" = Xno; then
lt_cv_prog_cc_pic=
lt_cv_prog_cc_can_build_shared=no
else
lt_cv_prog_cc_pic=" $lt_cv_prog_cc_pic"
fi
AC_MSG_RESULT([$lt_cv_prog_cc_pic_works])
fi
##
## END FIXME
# Check for any special shared library compilation flags.
if test -n "$lt_cv_prog_cc_shlib"; then
AC_MSG_WARN([\`$CC' requires \`$lt_cv_prog_cc_shlib' to build shared libraries])
if echo "$old_CC $old_CFLAGS " | [egrep -e "[ ]$lt_cv_prog_cc_shlib[ ]"] >/dev/null; then :
else
AC_MSG_WARN([add \`$lt_cv_prog_cc_shlib' to the CC or CFLAGS env variable and reconfigure])
lt_cv_prog_cc_can_build_shared=no
fi
fi
## FIXME: this should be a separate macro
##
AC_MSG_CHECKING([if $compiler static flag $lt_cv_prog_cc_static works])
AC_CACHE_VAL([lt_cv_prog_cc_static_works], [dnl
lt_cv_prog_cc_static_works=no
save_LDFLAGS="$LDFLAGS"
LDFLAGS="$LDFLAGS $lt_cv_prog_cc_static"
AC_TRY_LINK([], [], [lt_cv_prog_cc_static_works=yes])
LDFLAGS="$save_LDFLAGS"
])