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aclocal.m4
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aclocal.m4
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# generated automatically by aclocal 1.10 -*- Autoconf -*-
# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
# 2005, 2006 Free Software Foundation, Inc.
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
# PARTICULAR PURPOSE.
m4_if(m4_PACKAGE_VERSION, [2.61],,
[m4_fatal([this file was generated for autoconf 2.61.
You have another version of autoconf. If you want to use that,
you should regenerate the build system entirely.], [63])])
# serial 7 AC_LIB_LTDL
# AC_WITH_LTDL
# ------------
# Clients of libltdl can use this macro to allow the installer to
# choose between a shipped copy of the ltdl sources or a preinstalled
# version of the library.
AC_DEFUN([AC_WITH_LTDL],
[AC_REQUIRE([AC_LIB_LTDL])
AC_SUBST([LIBLTDL])
AC_SUBST([INCLTDL])
# Unless the user asks us to check, assume no installed ltdl exists.
use_installed_libltdl=no
AC_ARG_WITH([included_ltdl],
[ --with-included-ltdl use the GNU ltdl sources included here])
if test "x$with_included_ltdl" != xyes; then
# We are not being forced to use the included libltdl sources, so
# decide whether there is a useful installed version we can use.
AC_CHECK_HEADER([ltdl.h],
[AC_CHECK_LIB([ltdl], [lt_dlcaller_register],
[with_included_ltdl=no],
[with_included_ltdl=yes])
])
fi
if test "x$enable_ltdl_install" != xyes; then
# If the user did not specify an installable libltdl, then default
# to a convenience lib.
AC_LIBLTDL_CONVENIENCE
fi
if test "x$with_included_ltdl" = xno; then
# If the included ltdl is not to be used. then Use the
# preinstalled libltdl we found.
AC_DEFINE([HAVE_LTDL], [1],
[Define this if a modern libltdl is already installed])
LIBLTDL=-lltdl
fi
# Report our decision...
AC_MSG_CHECKING([whether to use included libltdl])
AC_MSG_RESULT([$with_included_ltdl])
AC_CONFIG_SUBDIRS([libltdl])
])# AC_WITH_LTDL
# AC_LIB_LTDL
# -----------
# Perform all the checks necessary for compilation of the ltdl objects
# -- including compiler checks and header checks.
AC_DEFUN([AC_LIB_LTDL],
[AC_PREREQ(2.50)
AC_REQUIRE([AC_PROG_CC])
AC_REQUIRE([AC_C_CONST])
AC_REQUIRE([AC_HEADER_STDC])
AC_REQUIRE([AC_HEADER_DIRENT])
AC_REQUIRE([_LT_AC_CHECK_DLFCN])
AC_REQUIRE([AC_LTDL_ENABLE_INSTALL])
AC_REQUIRE([AC_LTDL_SHLIBEXT])
AC_REQUIRE([AC_LTDL_SHLIBPATH])
AC_REQUIRE([AC_LTDL_SYSSEARCHPATH])
AC_REQUIRE([AC_LTDL_OBJDIR])
AC_REQUIRE([AC_LTDL_DLPREOPEN])
AC_REQUIRE([AC_LTDL_DLLIB])
AC_REQUIRE([AC_LTDL_SYMBOL_USCORE])
AC_REQUIRE([AC_LTDL_DLSYM_USCORE])
AC_REQUIRE([AC_LTDL_SYS_DLOPEN_DEPLIBS])
AC_REQUIRE([AC_LTDL_FUNC_ARGZ])
AC_CHECK_HEADERS([assert.h ctype.h errno.h malloc.h memory.h stdlib.h \
stdio.h unistd.h])
AC_CHECK_HEADERS([dl.h sys/dl.h dld.h mach-o/dyld.h])
AC_CHECK_HEADERS([string.h strings.h], [break])
AC_CHECK_FUNCS([strchr index], [break])
AC_CHECK_FUNCS([strrchr rindex], [break])
AC_CHECK_FUNCS([memcpy bcopy], [break])
AC_CHECK_FUNCS([memmove strcmp])
AC_CHECK_FUNCS([closedir opendir readdir])
])# AC_LIB_LTDL
# AC_LTDL_ENABLE_INSTALL
# ----------------------
AC_DEFUN([AC_LTDL_ENABLE_INSTALL],
[AC_ARG_ENABLE([ltdl-install],
[AC_HELP_STRING([--enable-ltdl-install], [install libltdl])])
AM_CONDITIONAL(INSTALL_LTDL, test x"${enable_ltdl_install-no}" != xno)
AM_CONDITIONAL(CONVENIENCE_LTDL, test x"${enable_ltdl_convenience-no}" != xno)
])# AC_LTDL_ENABLE_INSTALL
# AC_LTDL_SYS_DLOPEN_DEPLIBS
# --------------------------
AC_DEFUN([AC_LTDL_SYS_DLOPEN_DEPLIBS],
[AC_REQUIRE([AC_CANONICAL_HOST])
AC_CACHE_CHECK([whether deplibs are loaded by dlopen],
[libltdl_cv_sys_dlopen_deplibs],
[# PORTME does your system automatically load deplibs for dlopen?
# or its logical equivalent (e.g. shl_load for HP-UX < 11)
# For now, we just catch OSes we know something about -- in the
# future, we'll try test this programmatically.
libltdl_cv_sys_dlopen_deplibs=unknown
case "$host_os" in
aix3*|aix4.1.*|aix4.2.*)
# Unknown whether this is true for these versions of AIX, but
# we want this `case' here to explicitly catch those versions.
libltdl_cv_sys_dlopen_deplibs=unknown
;;
aix[[45]]*)
libltdl_cv_sys_dlopen_deplibs=yes
;;
darwin*)
# Assuming the user has installed a libdl from somewhere, this is true
# If you are looking for one http://www.opendarwin.org/projects/dlcompat
libltdl_cv_sys_dlopen_deplibs=yes
;;
gnu* | linux* | k*bsd*-gnu)
# GNU and its variants, using gnu ld.so (Glibc)
libltdl_cv_sys_dlopen_deplibs=yes
;;
hpux10*|hpux11*)
libltdl_cv_sys_dlopen_deplibs=yes
;;
interix*)
libltdl_cv_sys_dlopen_deplibs=yes
;;
irix[[12345]]*|irix6.[[01]]*)
# Catch all versions of IRIX before 6.2, and indicate that we don't
# know how it worked for any of those versions.
libltdl_cv_sys_dlopen_deplibs=unknown
;;
irix*)
# The case above catches anything before 6.2, and it's known that
# at 6.2 and later dlopen does load deplibs.
libltdl_cv_sys_dlopen_deplibs=yes
;;
netbsd* | netbsdelf*-gnu)
libltdl_cv_sys_dlopen_deplibs=yes
;;
openbsd*)
libltdl_cv_sys_dlopen_deplibs=yes
;;
osf[[1234]]*)
# dlopen did load deplibs (at least at 4.x), but until the 5.x series,
# it did *not* use an RPATH in a shared library to find objects the
# library depends on, so we explictly say `no'.
libltdl_cv_sys_dlopen_deplibs=no
;;
osf5.0|osf5.0a|osf5.1)
# dlopen *does* load deplibs and with the right loader patch applied
# it even uses RPATH in a shared library to search for shared objects
# that the library depends on, but there's no easy way to know if that
# patch is installed. Since this is the case, all we can really
# say is unknown -- it depends on the patch being installed. If
# it is, this changes to `yes'. Without it, it would be `no'.
libltdl_cv_sys_dlopen_deplibs=unknown
;;
osf*)
# the two cases above should catch all versions of osf <= 5.1. Read
# the comments above for what we know about them.
# At > 5.1, deplibs are loaded *and* any RPATH in a shared library
# is used to find them so we can finally say `yes'.
libltdl_cv_sys_dlopen_deplibs=yes
;;
solaris*)
libltdl_cv_sys_dlopen_deplibs=yes
;;
sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
libltdl_cv_sys_dlopen_deplibs=yes
;;
esac
])
if test "$libltdl_cv_sys_dlopen_deplibs" != yes; then
AC_DEFINE([LTDL_DLOPEN_DEPLIBS], [1],
[Define if the OS needs help to load dependent libraries for dlopen().])
fi
])# AC_LTDL_SYS_DLOPEN_DEPLIBS
# AC_LTDL_SHLIBEXT
# ----------------
AC_DEFUN([AC_LTDL_SHLIBEXT],
[AC_REQUIRE([AC_LIBTOOL_SYS_DYNAMIC_LINKER])
AC_CACHE_CHECK([which extension is used for loadable modules],
[libltdl_cv_shlibext],
[
module=yes
eval libltdl_cv_shlibext=$shrext_cmds
])
if test -n "$libltdl_cv_shlibext"; then
AC_DEFINE_UNQUOTED([LTDL_SHLIB_EXT], ["$libltdl_cv_shlibext"],
[Define to the extension used for shared libraries, say, ".so".])
fi
])# AC_LTDL_SHLIBEXT
# AC_LTDL_SHLIBPATH
# -----------------
AC_DEFUN([AC_LTDL_SHLIBPATH],
[AC_REQUIRE([AC_LIBTOOL_SYS_DYNAMIC_LINKER])
AC_CACHE_CHECK([which variable specifies run-time library path],
[libltdl_cv_shlibpath_var], [libltdl_cv_shlibpath_var="$shlibpath_var"])
if test -n "$libltdl_cv_shlibpath_var"; then
AC_DEFINE_UNQUOTED([LTDL_SHLIBPATH_VAR], ["$libltdl_cv_shlibpath_var"],
[Define to the name of the environment variable that determines the dynamic library search path.])
fi
])# AC_LTDL_SHLIBPATH
# AC_LTDL_SYSSEARCHPATH
# ---------------------
AC_DEFUN([AC_LTDL_SYSSEARCHPATH],
[AC_REQUIRE([AC_LIBTOOL_SYS_DYNAMIC_LINKER])
AC_CACHE_CHECK([for the default library search path],
[libltdl_cv_sys_search_path],
[libltdl_cv_sys_search_path="$sys_lib_dlsearch_path_spec"])
if test -n "$libltdl_cv_sys_search_path"; then
sys_search_path=
for dir in $libltdl_cv_sys_search_path; do
if test -z "$sys_search_path"; then
sys_search_path="$dir"
else
sys_search_path="$sys_search_path$PATH_SEPARATOR$dir"
fi
done
AC_DEFINE_UNQUOTED([LTDL_SYSSEARCHPATH], ["$sys_search_path"],
[Define to the system default library search path.])
fi
])# AC_LTDL_SYSSEARCHPATH
# AC_LTDL_OBJDIR
# --------------
AC_DEFUN([AC_LTDL_OBJDIR],
[AC_CACHE_CHECK([for objdir],
[libltdl_cv_objdir],
[libltdl_cv_objdir="$objdir"
if test -n "$objdir"; then
:
else
rm -f .libs 2>/dev/null
mkdir .libs 2>/dev/null
if test -d .libs; then
libltdl_cv_objdir=.libs
else
# MS-DOS does not allow filenames that begin with a dot.
libltdl_cv_objdir=_libs
fi
rmdir .libs 2>/dev/null
fi
])
AC_DEFINE_UNQUOTED([LTDL_OBJDIR], ["$libltdl_cv_objdir/"],
[Define to the sub-directory in which libtool stores uninstalled libraries.])
])# AC_LTDL_OBJDIR
# AC_LTDL_DLPREOPEN
# -----------------
AC_DEFUN([AC_LTDL_DLPREOPEN],
[AC_REQUIRE([AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE])
AC_CACHE_CHECK([whether libtool supports -dlopen/-dlpreopen],
[libltdl_cv_preloaded_symbols],
[if test -n "$lt_cv_sys_global_symbol_pipe"; then
libltdl_cv_preloaded_symbols=yes
else
libltdl_cv_preloaded_symbols=no
fi
])
if test x"$libltdl_cv_preloaded_symbols" = xyes; then
AC_DEFINE([HAVE_PRELOADED_SYMBOLS], [1],
[Define if libtool can extract symbol lists from object files.])
fi
])# AC_LTDL_DLPREOPEN
# AC_LTDL_DLLIB
# -------------
AC_DEFUN([AC_LTDL_DLLIB],
[LIBADD_DL=
AC_SUBST(LIBADD_DL)
AC_LANG_PUSH([C])
AC_CHECK_FUNC([shl_load],
[AC_DEFINE([HAVE_SHL_LOAD], [1],
[Define if you have the shl_load function.])],
[AC_CHECK_LIB([dld], [shl_load],
[AC_DEFINE([HAVE_SHL_LOAD], [1],
[Define if you have the shl_load function.])
LIBADD_DL="$LIBADD_DL -ldld"],
[AC_CHECK_LIB([dl], [dlopen],
[AC_DEFINE([HAVE_LIBDL], [1],
[Define if you have the libdl library or equivalent.])
LIBADD_DL="-ldl" libltdl_cv_lib_dl_dlopen="yes"],
[AC_TRY_LINK([#if HAVE_DLFCN_H
# include <dlfcn.h>
#endif
],
[dlopen(0, 0);],
[AC_DEFINE([HAVE_LIBDL], [1],
[Define if you have the libdl library or equivalent.]) libltdl_cv_func_dlopen="yes"],
[AC_CHECK_LIB([svld], [dlopen],
[AC_DEFINE([HAVE_LIBDL], [1],
[Define if you have the libdl library or equivalent.])
LIBADD_DL="-lsvld" libltdl_cv_func_dlopen="yes"],
[AC_CHECK_LIB([dld], [dld_link],
[AC_DEFINE([HAVE_DLD], [1],
[Define if you have the GNU dld library.])
LIBADD_DL="$LIBADD_DL -ldld"],
[AC_CHECK_FUNC([_dyld_func_lookup],
[AC_DEFINE([HAVE_DYLD], [1],
[Define if you have the _dyld_func_lookup function.])])
])
])
])
])
])
])
if test x"$libltdl_cv_func_dlopen" = xyes || test x"$libltdl_cv_lib_dl_dlopen" = xyes
then
lt_save_LIBS="$LIBS"
LIBS="$LIBS $LIBADD_DL"
AC_CHECK_FUNCS([dlerror])
LIBS="$lt_save_LIBS"
fi
AC_LANG_POP
])# AC_LTDL_DLLIB
# AC_LTDL_SYMBOL_USCORE
# ---------------------
# does the compiler prefix global symbols with an underscore?
AC_DEFUN([AC_LTDL_SYMBOL_USCORE],
[AC_REQUIRE([AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE])
AC_CACHE_CHECK([for _ prefix in compiled symbols],
[ac_cv_sys_symbol_underscore],
[ac_cv_sys_symbol_underscore=no
cat > conftest.$ac_ext <<EOF
void nm_test_func(){}
int main(){nm_test_func;return 0;}
EOF
if AC_TRY_EVAL(ac_compile); then
# Now try to grab the symbols.
ac_nlist=conftest.nm
if AC_TRY_EVAL(NM conftest.$ac_objext \| $lt_cv_sys_global_symbol_pipe \> $ac_nlist) && test -s "$ac_nlist"; then
# See whether the symbols have a leading underscore.
if grep '^. _nm_test_func' "$ac_nlist" >/dev/null; then
ac_cv_sys_symbol_underscore=yes
else
if grep '^. nm_test_func ' "$ac_nlist" >/dev/null; then
:
else
echo "configure: cannot find nm_test_func in $ac_nlist" >&AC_FD_CC
fi
fi
else
echo "configure: cannot run $lt_cv_sys_global_symbol_pipe" >&AC_FD_CC
fi
else
echo "configure: failed program was:" >&AC_FD_CC
cat conftest.c >&AC_FD_CC
fi
rm -rf conftest*
])
])# AC_LTDL_SYMBOL_USCORE
# AC_LTDL_DLSYM_USCORE
# --------------------
AC_DEFUN([AC_LTDL_DLSYM_USCORE],
[AC_REQUIRE([AC_LTDL_SYMBOL_USCORE])
if test x"$ac_cv_sys_symbol_underscore" = xyes; then
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#
# Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
#
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# (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
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