configure.ac

dnl  Copyright (c) 2006-2012 Red Hat, Inc. <http://www.redhat.com>
dnl  This file is part of GlusterFS.
dnl
dnl  This file is licensed to you under your choice of the GNU Lesser
dnl  General Public License, version 3 or any later version (LGPLv3 or
dnl  later), or the GNU General Public License, version 2 (GPLv2), in all
dnl  cases as published by the Free Software Foundation.

AC_INIT([glusterfs],
	[m4_esyscmd([build-aux/pkg-version --version])],
	[gluster-users@gluster.org],,[https://github.com/gluster/glusterfs.git])

AC_SUBST([PACKAGE_RELEASE],
         [m4_esyscmd([build-aux/pkg-version --release])])

AM_INIT_AUTOMAKE

m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES(yes)])

if make --help 2>&1 | grep -q no-print-directory; then
   AM_MAKEFLAGS="$AM_MAKEFLAGS --no-print-directory";
fi

if make --help 2>&1 | grep -q quiet; then
   AM_MAKEFLAGS="$AM_MAKEFLAGS --quiet"
fi

if libtool --help 2>&1 | grep -q quiet; then
   AM_LIBTOOLFLAGS="--quiet";
fi

AC_CONFIG_HEADERS([config.h])

AC_CONFIG_FILES([Makefile
                libglusterfs/Makefile
                libglusterfs/src/Makefile
                geo-replication/src/peer_gsec_create
                geo-replication/src/peer_add_secret_pub
                glusterfsd/Makefile
                glusterfsd/src/Makefile
                rpc/Makefile
                rpc/rpc-lib/Makefile
                rpc/rpc-lib/src/Makefile
                rpc/rpc-transport/Makefile
                rpc/rpc-transport/socket/Makefile
                rpc/rpc-transport/socket/src/Makefile
                rpc/rpc-transport/rdma/Makefile
                rpc/rpc-transport/rdma/src/Makefile
                rpc/xdr/Makefile
                rpc/xdr/src/Makefile
                xlators/Makefile
                xlators/mount/Makefile
                xlators/mount/fuse/Makefile
                xlators/mount/fuse/src/Makefile
                xlators/mount/fuse/utils/mount.glusterfs
                xlators/mount/fuse/utils/mount_glusterfs
                xlators/mount/fuse/utils/Makefile
                xlators/storage/Makefile
                xlators/storage/posix/Makefile
                xlators/storage/posix/src/Makefile
                xlators/storage/bd/Makefile
                xlators/storage/bd/src/Makefile
                xlators/cluster/Makefile
                xlators/cluster/afr/Makefile
                xlators/cluster/afr/src/Makefile
                xlators/cluster/stripe/Makefile
                xlators/cluster/stripe/src/Makefile
                xlators/cluster/dht/Makefile
                xlators/cluster/dht/src/Makefile
                xlators/performance/Makefile
                xlators/performance/write-behind/Makefile
                xlators/performance/write-behind/src/Makefile
                xlators/performance/read-ahead/Makefile
                xlators/performance/read-ahead/src/Makefile
                xlators/performance/readdir-ahead/Makefile
                xlators/performance/readdir-ahead/src/Makefile
                xlators/performance/io-threads/Makefile
                xlators/performance/io-threads/src/Makefile
                xlators/performance/io-cache/Makefile
                xlators/performance/io-cache/src/Makefile
                xlators/performance/symlink-cache/Makefile
                xlators/performance/symlink-cache/src/Makefile
                xlators/performance/quick-read/Makefile
                xlators/performance/quick-read/src/Makefile
                xlators/performance/open-behind/Makefile
                xlators/performance/open-behind/src/Makefile
                xlators/performance/md-cache/Makefile
                xlators/performance/md-cache/src/Makefile
                xlators/debug/Makefile
                xlators/debug/trace/Makefile
                xlators/debug/trace/src/Makefile
                xlators/debug/error-gen/Makefile
                xlators/debug/error-gen/src/Makefile
                xlators/debug/io-stats/Makefile
                xlators/debug/io-stats/src/Makefile
                xlators/protocol/Makefile
                xlators/protocol/auth/Makefile
                xlators/protocol/auth/addr/Makefile
                xlators/protocol/auth/addr/src/Makefile
                xlators/protocol/auth/login/Makefile
                xlators/protocol/auth/login/src/Makefile
                xlators/protocol/client/Makefile
                xlators/protocol/client/src/Makefile
                xlators/protocol/server/Makefile
                xlators/protocol/server/src/Makefile
                xlators/features/Makefile
		xlators/features/changelog/Makefile
		xlators/features/changelog/src/Makefile
		xlators/features/changelog/lib/Makefile
		xlators/features/changelog/lib/src/Makefile
                xlators/features/glupy/Makefile
                xlators/features/glupy/examples/Makefile
                xlators/features/glupy/src/Makefile
                xlators/features/glupy/src/setup.py
                xlators/features/locks/Makefile
                xlators/features/locks/src/Makefile
                xlators/features/quota/Makefile
                xlators/features/quota/src/Makefile
                xlators/features/marker/Makefile
                xlators/features/marker/src/Makefile
                xlators/features/read-only/Makefile
                xlators/features/read-only/src/Makefile
                xlators/features/compress/Makefile
                xlators/features/compress/src/Makefile
                xlators/features/mac-compat/Makefile
                xlators/features/mac-compat/src/Makefile
                xlators/features/quiesce/Makefile
                xlators/features/quiesce/src/Makefile
                xlators/features/barrier/Makefile
                xlators/features/barrier/src/Makefile
                xlators/features/index/Makefile
                xlators/features/index/src/Makefile
                xlators/features/protect/Makefile
                xlators/features/protect/src/Makefile
                xlators/features/gfid-access/Makefile
                xlators/features/gfid-access/src/Makefile
                xlators/playground/Makefile
                xlators/playground/template/Makefile
                xlators/playground/template/src/Makefile
                xlators/encryption/Makefile
                xlators/encryption/rot-13/Makefile
                xlators/encryption/rot-13/src/Makefile
                xlators/encryption/crypt/Makefile
                xlators/encryption/crypt/src/Makefile
		xlators/features/qemu-block/Makefile
		xlators/features/qemu-block/src/Makefile
                xlators/system/Makefile
                xlators/system/posix-acl/Makefile
                xlators/system/posix-acl/src/Makefile
                xlators/nfs/Makefile
                xlators/nfs/server/Makefile
                xlators/nfs/server/src/Makefile
                xlators/mgmt/Makefile
                xlators/mgmt/glusterd/Makefile
                xlators/mgmt/glusterd/src/Makefile
                cli/Makefile
                cli/src/Makefile
                doc/Makefile
                extras/Makefile
                extras/init.d/Makefile
                extras/init.d/glusterd.plist
                extras/init.d/glusterd-Debian
                extras/init.d/glusterd-Redhat
                extras/init.d/glusterd-SuSE
                extras/systemd/Makefile
                extras/systemd/glusterd.service
                extras/benchmarking/Makefile
                extras/hook-scripts/Makefile
                extras/ocf/Makefile
                extras/ocf/glusterd
                extras/ocf/volume
                extras/LinuxRPM/Makefile
                extras/geo-rep/Makefile
                extras/hook-scripts/add-brick/Makefile
                extras/hook-scripts/add-brick/pre/Makefile
                extras/hook-scripts/add-brick/post/Makefile
                extras/hook-scripts/start/Makefile
                extras/hook-scripts/start/post/Makefile
                extras/hook-scripts/set/Makefile
                extras/hook-scripts/set/post/Makefile
                extras/hook-scripts/stop/Makefile
                extras/hook-scripts/stop/pre/Makefile
                contrib/fuse-util/Makefile
                contrib/uuid/uuid_types.h
                glusterfs-api.pc
                libgfchangelog.pc
                api/Makefile
                api/src/Makefile
                api/examples/Makefile
                api/examples/__init__.py
                api/examples/setup.py
		geo-replication/Makefile
		geo-replication/src/Makefile
		geo-replication/syncdaemon/Makefile
                glusterfs.spec])

AC_CANONICAL_HOST

AC_PROG_CC
AC_DISABLE_STATIC
AC_PROG_LIBTOOL


# Initialize CFLAGS before usage
AC_ARG_ENABLE([debug],
              AC_HELP_STRING([--enable-debug],
                             [Enable debug build options.]))
if test "x$enable_debug" = "xyes"; then
        BUILD_DEBUG=yes
        CFLAGS="${CFLAGS} -g -O0 -DDEBUG"
else
        BUILD_DEBUG=no
        CFLAGS="${CFLAGS} -g -O2"
fi

AC_ARG_WITH(pkgconfigdir,
            [  --with-pkgconfigdir=DIR      pkgconfig file in DIR @<:@LIBDIR/pkgconfig@:>@],
            [pkgconfigdir=$withval],
            [pkgconfigdir='${libdir}/pkgconfig'])
AC_SUBST(pkgconfigdir)

AC_ARG_WITH(mountutildir,
            [  --with-mountutildir=DIR mount helper utility in DIR @<:@/sbin@:>@],
            [mountutildir=$withval],
            [mountutildir='/sbin'])
AC_SUBST(mountutildir)

AC_ARG_WITH(systemddir,
            [  --with-systemddir=DIR systemd service files in DIR @<:@/usr/lib/systemd/system@:>@],
            [systemddir=$withval],
            [systemddir='/usr/lib/systemd/system'])
AC_SUBST(systemddir)

AC_ARG_WITH(initdir,
            [  --with-initdir=DIR init.d scripts in DIR @<:@/etc/init.d@:>@],
            [initdir=$withval],
            [initdir='/etc/init.d'])
AC_SUBST(initdir)

AC_ARG_WITH(launchddir,
            [  --with-launchddir=DIR launchd services in DIR @<:@/Library/LaunchDaemons@:>@],
            [launchddir=$withval],
            [launchddir='/Library/LaunchDaemons'])
AC_SUBST(launchddir)

AC_ARG_WITH([ocf],
            [AS_HELP_STRING([--without-ocf], [build OCF-compliant cluster resource agents])],
            ,
            [OCF_SUBDIR='ocf'],
            )
AC_SUBST(OCF_SUBDIR)

# LEX needs a check
AC_PROG_LEX
if test  "x${LEX}" != "xflex" -a "x${FLEX}" != "xlex"; then
   AC_MSG_ERROR([Flex or lex required to build glusterfs.])
fi

dnl
dnl Word sizes...
dnl
AC_CHECK_SIZEOF(short)
AC_CHECK_SIZEOF(int)
AC_CHECK_SIZEOF(long)
AC_CHECK_SIZEOF(long long)
SIZEOF_SHORT=$ac_cv_sizeof_short
SIZEOF_INT=$ac_cv_sizeof_int
SIZEOF_LONG=$ac_cv_sizeof_long
SIZEOF_LONG_LONG=$ac_cv_sizeof_long_long
AC_SUBST(SIZEOF_SHORT)
AC_SUBST(SIZEOF_INT)
AC_SUBST(SIZEOF_LONG)
AC_SUBST(SIZEOF_LONG_LONG)

# YACC needs a check
AC_PROG_YACC
if test "x${YACC}" = "xbyacc" -o "x${YACC}" = "xyacc" -o "x${YACC}" = "x"; then
   AC_MSG_ERROR([GNU Bison required to build glusterfs.])
fi

AC_CHECK_TOOL([LD],[ld])

AC_CHECK_LIB([crypto], [MD5], , AC_MSG_ERROR([OpenSSL crypto library is required to build glusterfs]))

AC_CHECK_LIB([pthread], [pthread_mutex_init], , AC_MSG_ERROR([Posix threads library is required to build glusterfs]))

AC_CHECK_FUNC([dlopen], [has_dlopen=yes], AC_CHECK_LIB([dl], [dlopen], , AC_MSG_ERROR([Dynamic linking library required to build glusterfs])))

AC_CHECK_FUNC([gettext], [has_gettext=yes], AC_CHECK_LIB([intl], [gettext], , AC_MSG_ERROR([gettext support is required to build glusterfs])))

AC_CHECK_HEADERS([sys/xattr.h])

AC_CHECK_HEADERS([sys/extattr.h])

AC_CHECK_HEADERS([openssl/md5.h])

AC_CHECK_HEADERS([linux/falloc.h])

case $host_os in
  darwin*)
    if ! test "`/usr/bin/sw_vers | grep ProductVersion: | cut -f 2 | cut -d. -f2`" -ge 5; then
      AC_MSG_ERROR([You need at least OS X 10.5 (Leopard) to build Glusterfs])
    fi
    ;;
esac

dnl Mac OS X does not have spinlocks
AC_CHECK_FUNC([pthread_spin_init], [have_spinlock=yes])
if test "x${have_spinlock}" = "xyes"; then
   AC_DEFINE(HAVE_SPINLOCK, 1, [define if found spinlock])
fi
AC_SUBST(HAVE_SPINLOCK)

dnl some os may not have GNU defined strnlen function
AC_CHECK_FUNC([strnlen], [have_strnlen=yes])
if test "x${have_strnlen}" = "xyes"; then
   AC_DEFINE(HAVE_STRNLEN, 1, [define if found strnlen])
fi
AC_SUBST(HAVE_STRNLEN)


AC_CHECK_FUNC([setfsuid], [have_setfsuid=yes])
AC_CHECK_FUNC([setfsgid], [have_setfsgid=yes])

if test "x${have_setfsuid}" = "xyes" -a "x${have_setfsgid}" = "xyes"; then
  AC_DEFINE(HAVE_SET_FSID, 1, [define if found setfsuid setfsgid])
fi


# FUSE section
AC_ARG_ENABLE([fuse-client],
              AC_HELP_STRING([--disable-fuse-client],
                             [Do not build the fuse client. NOTE: you cannot mount glusterfs without the client]))

BUILD_FUSE_CLIENT=no
if test "x$enable_fuse_client" != "xno"; then
   FUSE_CLIENT_SUBDIR=fuse
   BUILD_FUSE_CLIENT="yes"
fi

AC_ARG_ENABLE([bd-xlator],
              AC_HELP_STRING([--enable-bd-xlator], [Build BD xlator]))

if test "x$enable_bd_xlator" != "xno"; then
  AC_CHECK_LIB([lvm2app],
               [lvm_init,lvm_lv_from_name],
               [HAVE_BD_LIB="yes"],
               [HAVE_BD_LIB="no"])

if test "x$HAVE_BD_LIB" = "xyes"; then
    # lvm_lv_from_name() has been made public with lvm2-2.02.79
    AC_CHECK_DECLS(
                  [lvm_lv_from_name],
                  [NEED_LVM_LV_FROM_NAME_DECL="no"],
                  [NEED_LVM_LV_FROM_NAME_DECL="yes"],
                  [[#include <lvm2app.h>]])
  fi
fi

if test "x$enable_bd_xlator" = "xyes" -a "x$HAVE_BD_LIB" = "xno"; then
   echo "BD xlator requested but required lvm2 development library not found."
   exit 1
fi

BUILD_BD_XLATOR=no
if test "x${enable-bd-xlator}" != "xno" -a "x${HAVE_BD_LIB}" = "xyes"; then
  BUILD_BD_XLATOR=yes
  AC_DEFINE(HAVE_BD_XLATOR, 1, [define if lvm2app library found and bd xlator
                            enabled])
  if test "x$NEED_LVM_LV_FROM_NAME_DECL" = "xyes"; then
    AC_DEFINE(NEED_LVM_LV_FROM_NAME_DECL, 1, [defined if lvm_lv_from_name()
                  was not found in the lvm2app.h header, but can be linked])
  fi
fi

AM_CONDITIONAL([ENABLE_BD_XLATOR], [test x$BUILD_BD_XLATOR = xyes])

# start encryption/crypt section

AC_CHECK_HEADERS([openssl/cmac.h], [have_cmac_h=yes], [have_cmac_h=no])

AC_ARG_ENABLE([crypt-xlator],
	AC_HELP_STRING([--enable-crypt-xlator], [Build crypt encryption xlator]))

if test "x$enable_crypt_xlator" = "xyes" -a "x$have_cmac_h" = "xno"; then
   echo "Encryption xlator requires OpenSSL with cmac.h"
   exit 1
fi

BUILD_CRYPT_XLATOR=no
if test "x$enable_crypt_xlator" != "xno" -a "x$have_cmac_h" = "xyes"; then
   BUILD_CRYPT_XLATOR=yes
   AC_DEFINE(HAVE_CRYPT_XLATOR, 1, [enable building crypt encryption xlator])
fi

AM_CONDITIONAL([ENABLE_CRYPT_XLATOR], [test x$BUILD_CRYPT_XLATOR = xyes])

AC_SUBST(FUSE_CLIENT_SUBDIR)
# end FUSE section


# FUSERMOUNT section
AC_ARG_ENABLE([fusermount],
              AC_HELP_STRING([--disable-fusermount],
                             [Use system's fusermount]))

BUILD_FUSERMOUNT="yes"
if test "x$enable_fusermount" = "xno"; then
  BUILD_FUSERMOUNT="no"
else
  AC_DEFINE(GF_FUSERMOUNT, 1, [Use our own fusermount])
  FUSERMOUNT_SUBDIR="contrib/fuse-util"
fi

AC_SUBST(FUSERMOUNT_SUBDIR)
#end FUSERMOUNT section

# QEMU_BLOCK section

AC_ARG_ENABLE([qemu-block],
                AC_HELP_STRING([--enable-qemu-block],
                        [Build QEMU Block formats translator]))

if test "x$enable_qemu_block" != "xno"; then
  PKG_CHECK_MODULES([GLIB], [glib-2.0],
                    [HAVE_GLIB_2="yes"],
  		    [HAVE_GLIB_2="no"])
fi

if test "x$enable_qemu_block" = "xyes" -a "x$HAVE_GLIB_2" = "xno"; then
   echo "QEMU Block formats translator requires libglib-2.0, but missing."
   exit 1
fi

BUILD_QEMU_BLOCK=no
if test "x${enable_qemu_block}" != "xno" -a "x${HAVE_GLIB_2}" = "xyes"; then
  BUILD_QEMU_BLOCK=yes
  AC_DEFINE(HAVE_QEMU_BLOCK, 1, [define if libglib-2.0 library found and QEMU
                  	     Block translator enabled])
fi

AM_CONDITIONAL([ENABLE_QEMU_BLOCK], [test x$BUILD_QEMU_BLOCK = xyes])

# end QEMU_BLOCK section

# EPOLL section
AC_ARG_ENABLE([epoll],
              AC_HELP_STRING([--disable-epoll],
                             [Use poll instead of epoll.]))

BUILD_EPOLL=no
if test "x$enable_epoll" != "xno"; then
   AC_CHECK_HEADERS([sys/epoll.h],
                    [BUILD_EPOLL=yes],
                    [BUILD_EPOLL=no])
fi
# end EPOLL section


# IBVERBS section
AC_ARG_ENABLE([ibverbs],
              AC_HELP_STRING([--disable-ibverbs],
                             [Do not build the ibverbs transport]))

if test "x$enable_ibverbs" != "xno"; then
  AC_CHECK_LIB([ibverbs],
               [ibv_get_device_list],
               [HAVE_LIBIBVERBS="yes"],
               [HAVE_LIBIBVERBS="no"])
  AC_CHECK_LIB([rdmacm], [rdma_create_id], [HAVE_RDMACM="yes"], [HAVE_RDMACM="no"])
fi

if test "x$enable_ibverbs" = "xyes"; then
   if test "x$HAVE_LIBIBVERBS" = "xno"; then
      echo "ibverbs-transport requested, but libibverbs is not present."
      exit 1
   fi

   if test "x$HAVE_RDMACM" = "xno"; then
      echo "ibverbs-transport requested, but librdmacm is not present."
      exit 1
   fi
fi

BUILD_RDMA=no
BUILD_IBVERBS=no
if test "x$enable_ibverbs" != "xno" -a "x$HAVE_LIBIBVERBS" = "xyes" -a "x$HAVE_RDMACM" = "xyes"; then
  IBVERBS_SUBDIR=ib-verbs
  BUILD_IBVERBS=yes
  RDMA_SUBDIR=rdma
  BUILD_RDMA=yes
fi

AC_SUBST(IBVERBS_SUBDIR)
AC_SUBST(RDMA_SUBDIR)
# end IBVERBS section


# SYNCDAEMON section
AC_ARG_ENABLE([georeplication],
              AC_HELP_STRING([--disable-georeplication],
                             [Do not install georeplication components]))

BUILD_SYNCDAEMON=no
case $host_os in
     linux*)
#do nothing
       ;;
     netbsd*)
#do nothing
       ;;
     *)
#disabling geo replication for non-linux platforms
        enable_georeplication=no
        ;;
esac
SYNCDAEMON_COMPILE=0
if test "x$enable_georeplication" != "xno"; then
  SYNCDAEMON_SUBDIR=geo-replication
  SYNCDAEMON_COMPILE=1

  BUILD_SYNCDAEMON="yes"
  AM_PATH_PYTHON([2.4])
  echo -n "checking if python is python 2.x... "
  if echo $PYTHON_VERSION | grep ^2; then
    :
  else
    echo no
    AC_MSG_ERROR([only python 2.x is supported])
  fi
  echo -n "checking if python has ctypes support... "
  if "$PYTHON" -c 'import ctypes' 2>/dev/null; then
    echo yes
  else
    echo no
    AC_MSG_ERROR([python does not have ctypes support])
  fi
fi
AC_SUBST(SYNCDAEMON_COMPILE)
AC_SUBST(SYNCDAEMON_SUBDIR)
# end SYNCDAEMON section

# CDC xlator - check if libz is present if so enable HAVE_LIB_Z
echo -n "checking if libz is present... "

PKG_CHECK_MODULES([ZLIB], [zlib >= 1.2.0],
                  [echo "yes (features requiring zlib enabled)"  AC_DEFINE(HAVE_LIB_Z, 1, [define if zlib is present])],
                  [echo "no"] )

AC_SUBST(LIBZ_CFLAGS)
AC_SUBST(LIBZ_LIBS)
# end CDC xlator secion

# check for systemtap/dtrace
BUILD_SYSTEMTAP=no
AC_MSG_CHECKING([whether to include systemtap tracing support])
AC_ARG_ENABLE([systemtap],
              [AS_HELP_STRING([--enable-systemtap],
              [Enable inclusion of systemtap trace support])],
              [ENABLE_SYSTEMTAP="${enableval}"], [ENABLE_SYSTEMTAP="def"])

AM_CONDITIONAL([ENABLE_SYSTEMTAP], [test "x${ENABLE_SYSTEMTAP}" = "xyes"])
AC_MSG_RESULT(${ENABLE_SYSTEMTAP})

if test "x${ENABLE_SYSTEMTAP}" != "xno"; then
    AC_CHECK_PROG(DTRACE, dtrace, "yes", "no")
    AC_CHECK_HEADER([sys/sdt.h], [SDT_H_FOUND="yes"],
                    [SDT_H_FOUND="no"])
fi

if test "x${ENABLE_SYSTEMTAP}" = "xyes"; then
    if test "x${DTRACE}" = "xno"; then
        AC_MSG_ERROR([dtrace not found])
    elif test "$x{SDT_H_FOUND}" = "xno"; then
        AC_MSG_ERROR([systemtap support needs sys/sdt.h header])
    fi
fi

if test "x${DTRACE}" = "xyes" -a "x${SDT_H_FOUND}" = "xyes"; then
    AC_MSG_CHECKING([x"${DTRACE}"xy"${SDT_H_FOUND}"y])
    AC_DEFINE([HAVE_SYSTEMTAP], [1], [Define to 1 if using  probes.])
    BUILD_SYSTEMTAP=yes
fi
# end of systemtap/dtrace

# xml-output
AC_ARG_ENABLE([xml-output],
              AC_HELP_STRING([--disable-xml-output],
                             [Disable the xml output]))
BUILD_XML_OUTPUT="yes"
if test "x$enable_xml_output" != "xno"; then
    #check if libxml is present if so enable HAVE_LIB_XML
    m4_ifdef([AM_PATH_XML2],[AM_PATH_XML2([2.6.19])], [no_xml=yes])
    if test "x${no_xml}" = "x"; then
        AC_DEFINE([HAVE_LIB_XML], [1], [Define to 1 if using libxml2.])
    else
	if test "x$enable_georeplication" != "xno"; then
           AC_MSG_ERROR([libxml2 devel libraries not found])
	else
	   AC_MSG_WARN([libxml2 devel libraries not found disabling XML support])
           BUILD_XML_OUTPUT="no"
	fi

    fi
else
    if test "x$enable_georeplication" != "xno"; then
       AC_MSG_ERROR([geo-replication requires xml output])
    fi
    BUILD_XML_OUTPUT="no"
fi
# end of xml-output

dnl FreeBSD > 5 has execinfo as a Ported library for giving a workaround
dnl solution to GCC backtrace functionality

AC_CHECK_HEADERS([execinfo.h], [have_backtrace=yes],
               AC_CHECK_LIB([execinfo], [backtrace], [have_backtrace=yes]))
dnl               AC_MSG_ERROR([libexecinfo not found libexecinfo required.])))

if test "x${have_backtrace}" = "xyes"; then
   AC_DEFINE(HAVE_BACKTRACE, 1, [define if found backtrace])
fi
AC_SUBST(HAVE_BACKTRACE)

dnl glusterfs prints memory usage to stderr by sending it SIGUSR1
AC_CHECK_FUNC([malloc_stats], [have_malloc_stats=yes])
if test "x${have_malloc_stats}" = "xyes"; then
   AC_DEFINE(HAVE_MALLOC_STATS, 1, [define if found malloc_stats])
fi
AC_SUBST(HAVE_MALLOC_STATS)

dnl Linux, Solaris, Cygwin
AC_CHECK_MEMBERS([struct stat.st_atim.tv_nsec])
dnl FreeBSD, NetBSD
AC_CHECK_MEMBERS([struct stat.st_atimespec.tv_nsec])
case $host_os in
        *netbsd*)
        CFLAGS="${CFLAGS} -D_INCOMPLETE_XOPEN_C063"
        ;;
esac
AC_CHECK_FUNC([linkat], [have_linkat=yes])
if test "x${have_linkat}" = "xyes"; then
   AC_DEFINE(HAVE_LINKAT, 1, [define if found linkat])
fi
AC_SUBST(HAVE_LINKAT)

dnl check for Monotonic clock
AC_CHECK_FUNC([clock_gettime], [has_monotonic_clock=yes], AC_CHECK_LIB([rt], [clock_gettime], , AC_MSG_WARN([System doesn't have monotonic clock using contrib])))

dnl Check for argp
AC_CHECK_HEADER([argp.h], AC_DEFINE(HAVE_ARGP, 1, [have argp]))
AC_CONFIG_SUBDIRS(contrib/argp-standalone)

BUILD_ARGP_STANDALONE=no
if test "x${ac_cv_header_argp_h}" = "xno"; then
   BUILD_ARGP_STANDALONE=yes
   ARGP_STANDALONE_CPPFLAGS='-I${top_srcdir}/contrib/argp-standalone'
   ARGP_STANDALONE_LDADD='${top_builddir}/contrib/argp-standalone/libargp.a'
   ARGP_STANDALONE_DIR='${top_builddir}/contrib/argp-standalone'
fi

AC_SUBST(ARGP_STANDALONE_CPPFLAGS)
AC_SUBST(ARGP_STANDALONE_LDADD)

AC_CHECK_HEADER([malloc.h], AC_DEFINE(HAVE_MALLOC_H, 1, [have malloc.h]))

AC_CHECK_FUNC([llistxattr], [have_llistxattr=yes])
if test "x${have_llistxattr}" = "xyes"; then
   AC_DEFINE(HAVE_LLISTXATTR, 1, [define if llistxattr exists])
fi

AC_CHECK_FUNC([fdatasync], [have_fdatasync=yes])
if test "x${have_fdatasync}" = "xyes"; then
   AC_DEFINE(HAVE_FDATASYNC, 1, [define if fdatasync exists])
fi

AC_CHECK_FUNC([fallocate], [have_fallocate=yes])
if test "x${have_fallocate}" = "xyes"; then
   AC_DEFINE(HAVE_FALLOCATE, 1, [define if fallocate exists])
fi

AC_CHECK_FUNC([posix_fallocate], [have_posix_fallocate=yes])
if test "x${have_posix_fallocate}" = "xyes"; then
   AC_DEFINE(HAVE_POSIX_FALLOCATE, 1, [define if posix_fallocate exists])
fi


# Check the distribution where you are compiling glusterfs on

GF_DISTRIBUTION=
AC_CHECK_FILE([/etc/debian_version])
AC_CHECK_FILE([/etc/SuSE-release])
AC_CHECK_FILE([/etc/redhat-release])

if test "x$ac_cv_file__etc_debian_version" = "xyes"; then
   GF_DISTRIBUTION=Debian
fi
if test "x$ac_cv_file__etc_SuSE_release" = "xyes"; then
   GF_DISTRIBUTION=SuSE
fi
if test "x$ac_cv_file__etc_redhat_release" = "xyes"; then
   GF_DISTRIBUTION=Redhat
fi

AC_SUBST(GF_DISTRIBUTION)

GF_HOST_OS=""
GF_LDFLAGS="-rdynamic"

# check for gcc -Werror=format-security
saved_CFLAGS=$CFLAGS
CFLAGS="-Wformat -Werror=format-security"
AC_MSG_CHECKING([whether $CC accepts -Werror=format-security])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [cc_werror_format_security=yes], [cc_werror_format_security=no])
echo $cc_werror_format_security
if test "x$cc_werror_format_security" = "xno"; then
    CFLAGS="$saved_CFLAGS"
else
    CFLAGS="$saved_CFLAGS $CFLAGS"
fi

# check for gcc -Werror=implicit-function-declaration
saved_CFLAGS=$CFLAGS
CFLAGS="-Werror=implicit-function-declaration"
AC_MSG_CHECKING([whether $CC accepts -Werror=implicit-function-declaration])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [cc_werror_implicit=yes], [cc_werror_implicit=no])
echo $cc_werror_implicit
if test "x$cc_werror_implicit" = "xno"; then
    CFLAGS="$saved_CFLAGS"
else
    CFLAGS="$saved_CFLAGS $CFLAGS"
fi

case $host_os in
     linux*)
        GF_HOST_OS="GF_LINUX_HOST_OS"
        GF_CFLAGS="${ARGP_STANDALONE_CPPFLAGS}"
        GF_GLUSTERFS_CFLAGS="${GF_CFLAGS}"
        GF_LDADD="${ARGP_STANDALONE_LDADD}"
        GF_FUSE_CFLAGS="-DFUSERMOUNT_DIR=\\\"\$(bindir)\\\""
        ;;
     solaris*)
        GF_HOST_OS="GF_SOLARIS_HOST_OS"
        GF_CFLAGS="${ARGP_STANDALONE_CPPFLAGS} -D_REENTRANT -D_POSIX_PTHREAD_SEMANTICS -m64"
        GF_LDFLAGS=""
        GF_GLUSTERFS_CFLAGS="${GF_CFLAGS}"
        GF_LDADD="${ARGP_STANDALONE_LDADD}"
        GF_GLUSTERFS_LIBS="-lnsl -lresolv -lsocket"
        BUILD_FUSE_CLIENT=no
        FUSE_CLIENT_SUBDIR=""
        ;;
     *netbsd*)
        GF_HOST_OS="GF_BSD_HOST_OS"
        GF_CFLAGS="${ARGP_STANDALONE_CPPFLAGS} -D_INCOMPLETE_XOPEN_C063"
        GF_CFLAGS="${GF_CFLAGS} -DTHREAD_UNSAFE_BASENAME"
        GF_CFLAGS="${GF_CFLAGS} -DTHREAD_UNSAFE_DIRNAME"
        GF_GLUSTERFS_CFLAGS="${GF_CFLAGS}"
        GF_LDADD="${ARGP_STANDALONE_LDADD}"
        if test "x$ac_cv_header_execinfo_h" = "xyes"; then
           GF_GLUSTERFS_LIBS="-lexecinfo"
        fi
        GF_FUSE_LDADD="-lperfuse"
        BUILD_FUSE_CLIENT=yes
        LEXLIB=""
        ;;
     *bsd*)
        GF_HOST_OS="GF_BSD_HOST_OS"
        GF_CFLAGS="${ARGP_STANDALONE_CPPFLAGS}"
        GF_CFLAGS="${GF_CFLAGS} -DTHREAD_UNSAFE_BASENAME"
        GF_CFLAGS="${GF_CFLAGS} -DTHREAD_UNSAFE_DIRNAME"
        GF_GLUSTERFS_CFLAGS="${GF_CFLAGS}"
        GF_LDADD="${ARGP_STANDALONE_LDADD}"
        if test "x$ac_cv_header_execinfo_h" = "xyes"; then
           GF_GLUSTERFS_LIBS="-lexecinfo"
        fi
        BUILD_FUSE_CLIENT=no
        ;;
     darwin*)
        GF_HOST_OS="GF_DARWIN_HOST_OS"
        LIBTOOL=glibtool
        GF_CFLAGS="${ARGP_STANDALONE_CPPFLAGS} -D__DARWIN_64_BIT_INO_T -bundle -undefined suppress -flat_namespace -D_XOPEN_SOURCE"
        GF_CFLAGS="${GF_CFLAGS} -DTHREAD_UNSAFE_BASENAME"
        GF_CFLAGS="${GF_CFLAGS} -DTHREAD_UNSAFE_DIRNAME"
        GF_GLUSTERFS_CFLAGS="${ARGP_STANDALONE_CPPFLAGS} -D__DARWIN_64_BIT_INO_T -undefined suppress -flat_namespace"
        GF_LDADD="${ARGP_STANDALONE_LDADD}"
        GF_FUSE_CFLAGS="-I\$(CONTRIBDIR)/macfuse"
        ;;
esac

# enable debug section
AC_ARG_ENABLE([debug],
              AC_HELP_STRING([--enable-debug],
                             [Enable debug build options.]))

# syslog section
AC_ARG_ENABLE([syslog],
	      AC_HELP_STRING([--disable-syslog],
			     [Disable syslog for logging]))

USE_SYSLOG="yes"
if test "x$enable_syslog" != "xno"; then
  AC_DEFINE(GF_USE_SYSLOG, 1, [Use syslog for logging])
else
  USE_SYSLOG="no"
fi
AM_CONDITIONAL([ENABLE_SYSLOG], [test x$USE_SYSLOG = xyes])
#end syslog section

BUILD_READLINE=no
AC_CHECK_LIB([readline -lcurses],[readline],[RLLIBS="-lreadline -lcurses"])
AC_CHECK_LIB([readline -ltermcap],[readline],[RLLIBS="-lreadline -ltermcap"])
AC_CHECK_LIB([readline -lncurses],[readline],[RLLIBS="-lreadline -lncurses"])

if test "x$RLLIBS" != "x"; then
   AC_DEFINE(HAVE_READLINE, 1, [readline enabled CLI])
   BUILD_READLINE=yes
fi

BUILD_LIBAIO=no
AC_CHECK_LIB([aio],[io_setup],[LIBAIO="-laio"])

if test "x$LIBAIO" != "x"; then
   AC_DEFINE(HAVE_LIBAIO, 1, [libaio based POSIX enabled])
   BUILD_LIBAIO=yes
fi

# glupy section
BUILD_GLUPY=no
have_python2=no
have_Python_h=no

AM_PATH_PYTHON()
if echo $PYTHON_VERSION | grep ^2; then
  have_python2=yes
fi

# Save flags before testing python
saved_CFLAGS=$CFLAGS
saved_CPPFLAGS=$CPPFLAGS
saved_LDFLAGS=$LDFLAGS
CFLAGS=`${PYTHON}-config --cflags`
CPPFLAGS=$CFLAGS
LDFLAGS="-L`${PYTHON}-config --prefix`/lib `${PYTHON}-config --ldflags`"
AC_CHECK_HEADERS([python$PYTHON_VERSION/Python.h],[have_Python_h=yes],[])
AC_ARG_ENABLE([glupy],
              AS_HELP_STRING([--enable-glupy],
                             [build glupy]))
case x$enable_glupy in
   xyes)
      if test "x$have_python2" = "xyes" -a "x$have_Python_h" = "xyes"; then
         BUILD_GLUPY=yes
        PYTHONDEV_CFLAGS="$CFLAGS"
        PYTHONDEV_CPPFLAGS="$CPPFLAGS"
        PYTHONDEV_LDFLAGS="$LDFLAGS"
        AC_SUBST(PYTHONDEV_CFLAGS)
        AC_SUBST(PYTHONDEV_CPPFLAGS)
        AC_SUBST(PYTHONDEV_LDFLAGS)
      else
         AC_MSG_ERROR([glupy requires python-devel/python-dev package and python2.x])
      fi
      ;;
   xno)
      ;;
   *)
      if test "x$have_python2" = "xyes" -a "x$have_Python_h" = "xyes"; then
         BUILD_GLUPY=yes
        PYTHONDEV_CFLAGS="$CFLAGS"
        PYTHONDEV_CPPFLAGS="$CPPFLAGS"
        PYTHONDEV_LDFLAGS="$LDFLAGS"
        AC_SUBST(PYTHONDEV_CFLAGS)
        AC_SUBST(PYTHONDEV_CPPFLAGS)
        AC_SUBST(PYTHONDEV_LDFLAGS)
      else
         AC_MSG_WARN([
        ---------------------------------------------------------------------------------
         cannot build glupy. python 2.x and python-devel/python-dev package are required.
        ---------------------------------------------------------------------------------])
      fi
      ;;
esac
# Restore flags
CFLAGS=$saved_CFLAGS
CPPFLAGS=$saved_CPPFLAGS
LDFLAGS=$saved_LDFLAGS

if test "x$BUILD_GLUPY" = "xyes"; then
   BUILD_PYTHON_INC=`$PYTHON -c "from distutils import sysconfig; print sysconfig.get_python_inc()"`
   BUILD_PYTHON_LIB=python$PYTHON_VERSION
   GLUPY_SUBDIR=glupy
   GLUPY_SUBDIR_MAKEFILE=xlators/features/glupy/Makefile
   GLUPY_SUBDIR_SRC_MAKEFILE=xlators/features/glupy/src/Makefile
   echo "building glupy with -isystem $BUILD_PYTHON_INC -l $BUILD_PYTHON_LIB"
   AC_SUBST(BUILD_PYTHON_INC)
   AC_SUBST(BUILD_PYTHON_LIB)
   AC_SUBST(GLUPY_SUBDIR)
   AC_SUBST(GLUPY_SUBDIR_MAKEFILE)
   AC_SUBST(GLUPY_SUBDIR_SRC_MAKEFILE)
fi
# end glupy section

AC_SUBST(CFLAGS)
# end enable debug section

AC_SUBST(GF_HOST_OS)
AC_SUBST([GF_GLUSTERFS_LIBS])
AC_SUBST(GF_GLUSTERFS_CFLAGS)
AC_SUBST(GF_CFLAGS)
AC_SUBST(GF_LDFLAGS)
AC_SUBST(GF_LDADD)
AC_SUBST(GF_FUSE_LDADD)
AC_SUBST(GF_FUSE_CFLAGS)
AC_SUBST(RLLIBS)
AC_SUBST(LIBAIO)
AC_SUBST(AM_MAKEFLAGS)
AC_SUBST(AM_LIBTOOLFLAGS)

CONTRIBDIR='$(top_srcdir)/contrib'
AC_SUBST(CONTRIBDIR)

GF_CPPDEFINES='-D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE -D$(GF_HOST_OS)'
GF_CPPINCLUDES='-I$(top_srcdir)/libglusterfs/src -I$(CONTRIBDIR)/uuid $(UNITTEST_CPPFLAGS)'
GF_CPPFLAGS="$GF_CPPDEFINES $GF_CPPINCLUDES"
AC_SUBST([GF_CPPFLAGS])

AM_CONDITIONAL([GF_DARWIN_HOST_OS], test "${GF_HOST_OS}" = "GF_DARWIN_HOST_OS")

AM_CONDITIONAL([GF_INSTALL_VAR_LIB_GLUSTERD], test ! -d ${localstatedir}/lib/glusterd && test -d ${sysconfdir}/glusterd )

dnl pkg-config versioning
GFAPI_VERSION="6.0.0"
LIBGFCHANGELOG_VERSION="0.0.1"
AC_SUBST(GFAPI_VERSION)
AC_SUBST(LIBGFCHANGELOG_VERSION)

dnl libtool versioning
LIBGFXDR_LT_VERSION="0:1:0"
LIBGFRPC_LT_VERSION="0:1:0"
LIBGLUSTERFS_LT_VERSION="0:1:0"
LIBGFCHANGELOG_LT_VERSION="0:1:0"
GFAPI_LT_VERSION="6:0:0"
AC_SUBST(LIBGFXDR_LT_VERSION)
AC_SUBST(LIBGFRPC_LT_VERSION)
AC_SUBST(LIBGLUSTERFS_LT_VERSION)
AC_SUBST(LIBGFCHANGELOG_LT_VERSION)
AC_SUBST(GFAPI_LT_VERSION)

AC_OUTPUT

echo
echo "GlusterFS configure summary"
echo "==========================="
echo "FUSE client          : $BUILD_FUSE_CLIENT"
echo "Infiniband verbs     : $BUILD_IBVERBS"
echo "epoll IO multiplex   : $BUILD_EPOLL"
echo "argp-standalone      : $BUILD_ARGP_STANDALONE"
echo "fusermount           : $BUILD_FUSERMOUNT"
echo "readline             : $BUILD_READLINE"
echo "georeplication       : $BUILD_SYNCDAEMON"
echo "Linux-AIO            : $BUILD_LIBAIO"
echo "Enable Debug         : $BUILD_DEBUG"
echo "systemtap            : $BUILD_SYSTEMTAP"
echo "Block Device xlator  : $BUILD_BD_XLATOR"
echo "glupy                : $BUILD_GLUPY"
echo "Use syslog           : $USE_SYSLOG"
echo "XML output           : $BUILD_XML_OUTPUT"
echo "QEMU Block formats   : $BUILD_QEMU_BLOCK"
echo "Encryption xlator    : $BUILD_CRYPT_XLATOR"
echo