ltdl.m4
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上传日期:2022-07-21
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文件大小:26k
- ##############################################################################
- # ltdl.m4 - Configure ltdl for the target system. -*-Autoconf-*-
- #
- # Copyright (C) 1999-2006, 2007, 2008 Free Software Foundation, Inc.
- # Written by Thomas Tanner, 1999
- #
- # 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.
- # serial 17 LTDL_INIT
- # LT_CONFIG_LTDL_DIR(DIRECTORY, [LTDL-MODE])
- # ------------------------------------------
- # DIRECTORY contains the libltdl sources. It is okay to call this
- # function multiple times, as long as the same DIRECTORY is always given.
- AC_DEFUN([LT_CONFIG_LTDL_DIR],
- [AC_BEFORE([$0], [LTDL_INIT])
- _$0($*)
- ])# LT_CONFIG_LTDL_DIR
- # We break this out into a separate macro, so that we can call it safely
- # internally without being caught accidentally by the sed scan in libtoolize.
- m4_defun([_LT_CONFIG_LTDL_DIR],
- [dnl remove trailing slashes
- m4_pushdef([_ARG_DIR], m4_bpatsubst([$1], [/*$]))
- m4_case(_LTDL_DIR,
- [], [dnl only set lt_ltdl_dir if _ARG_DIR is not simply `.'
- m4_if(_ARG_DIR, [.],
- [],
- [m4_define([_LTDL_DIR], _ARG_DIR)
- _LT_SHELL_INIT([lt_ltdl_dir=']_ARG_DIR['])])],
- [m4_if(_ARG_DIR, _LTDL_DIR,
- [],
- [m4_fatal([multiple libltdl directories: `]_LTDL_DIR[', `]_ARG_DIR['])])])
- m4_popdef([_ARG_DIR])
- ])# _LT_CONFIG_LTDL_DIR
- # Initialise:
- m4_define([_LTDL_DIR], [])
- # _LT_BUILD_PREFIX
- # ----------------
- # If Autoconf is new enough, expand to `${top_build_prefix}', otherwise
- # to `${top_builddir}/'.
- m4_define([_LT_BUILD_PREFIX],
- [m4_ifdef([AC_AUTOCONF_VERSION],
- [m4_if(m4_version_compare(m4_defn([AC_AUTOCONF_VERSION]), [2.62]),
- [-1], [m4_ifdef([_AC_HAVE_TOP_BUILD_PREFIX],
- [${top_build_prefix}],
- [${top_builddir}/])],
- [${top_build_prefix}])],
- [${top_builddir}/])[]dnl
- ])
- # LTDL_CONVENIENCE
- # ----------------
- # sets LIBLTDL to the link flags for the libltdl convenience library and
- # LTDLINCL to the include flags for the libltdl header and adds
- # --enable-ltdl-convenience to the configure arguments. Note that
- # AC_CONFIG_SUBDIRS is not called here. LIBLTDL will be prefixed with
- # '${top_build_prefix}' if available, otherwise with '${top_builddir}/',
- # and LTDLINCL will be prefixed with '${top_srcdir}/' (note the single
- # quotes!). If your package is not flat and you're not using automake,
- # define top_build_prefix, top_builddir, and top_srcdir appropriately
- # in your Makefiles.
- AC_DEFUN([LTDL_CONVENIENCE],
- [AC_BEFORE([$0], [LTDL_INIT])dnl
- dnl Although the argument is deprecated and no longer documented,
- dnl LTDL_CONVENIENCE used to take a DIRECTORY orgument, if we have one
- dnl here make sure it is the same as any other declaration of libltdl's
- dnl location! This also ensures lt_ltdl_dir is set when configure.ac is
- dnl not yet using an explicit LT_CONFIG_LTDL_DIR.
- m4_ifval([$1], [_LT_CONFIG_LTDL_DIR([$1])])dnl
- _$0()
- ])# LTDL_CONVENIENCE
- # AC_LIBLTDL_CONVENIENCE accepted a directory argument in older libtools,
- # now we have LT_CONFIG_LTDL_DIR:
- AU_DEFUN([AC_LIBLTDL_CONVENIENCE],
- [_LT_CONFIG_LTDL_DIR([m4_default([$1], [libltdl])])
- _LTDL_CONVENIENCE])
- dnl aclocal-1.4 backwards compatibility:
- dnl AC_DEFUN([AC_LIBLTDL_CONVENIENCE], [])
- # _LTDL_CONVENIENCE
- # -----------------
- # Code shared by LTDL_CONVENIENCE and LTDL_INIT([convenience]).
- m4_defun([_LTDL_CONVENIENCE],
- [case $enable_ltdl_convenience in
- no) AC_MSG_ERROR([this package needs a convenience libltdl]) ;;
- "") enable_ltdl_convenience=yes
- ac_configure_args="$ac_configure_args --enable-ltdl-convenience" ;;
- esac
- LIBLTDL='_LT_BUILD_PREFIX'"${lt_ltdl_dir+$lt_ltdl_dir/}libltdlc.la"
- LTDLDEPS=$LIBLTDL
- LTDLINCL='-I${top_srcdir}'"${lt_ltdl_dir+/$lt_ltdl_dir}"
- AC_SUBST([LIBLTDL])
- AC_SUBST([LTDLDEPS])
- AC_SUBST([LTDLINCL])
- # For backwards non-gettext consistent compatibility...
- INCLTDL="$LTDLINCL"
- AC_SUBST([INCLTDL])
- ])# _LTDL_CONVENIENCE
- # LTDL_INSTALLABLE
- # ----------------
- # sets LIBLTDL to the link flags for the libltdl installable library
- # and LTDLINCL to the include flags for the libltdl header and adds
- # --enable-ltdl-install to the configure arguments. Note that
- # AC_CONFIG_SUBDIRS is not called from here. If an installed libltdl
- # is not found, LIBLTDL will be prefixed with '${top_build_prefix}' if
- # available, otherwise with '${top_builddir}/', and LTDLINCL will be
- # prefixed with '${top_srcdir}/' (note the single quotes!). If your
- # package is not flat and you're not using automake, define top_build_prefix,
- # top_builddir, and top_srcdir appropriately in your Makefiles.
- # In the future, this macro may have to be called after LT_INIT.
- AC_DEFUN([LTDL_INSTALLABLE],
- [AC_BEFORE([$0], [LTDL_INIT])dnl
- dnl Although the argument is deprecated and no longer documented,
- dnl LTDL_INSTALLABLE used to take a DIRECTORY orgument, if we have one
- dnl here make sure it is the same as any other declaration of libltdl's
- dnl location! This also ensures lt_ltdl_dir is set when configure.ac is
- dnl not yet using an explicit LT_CONFIG_LTDL_DIR.
- m4_ifval([$1], [_LT_CONFIG_LTDL_DIR([$1])])dnl
- _$0()
- ])# LTDL_INSTALLABLE
- # AC_LIBLTDL_INSTALLABLE accepted a directory argument in older libtools,
- # now we have LT_CONFIG_LTDL_DIR:
- AU_DEFUN([AC_LIBLTDL_INSTALLABLE],
- [_LT_CONFIG_LTDL_DIR([m4_default([$1], [libltdl])])
- _LTDL_INSTALLABLE])
- dnl aclocal-1.4 backwards compatibility:
- dnl AC_DEFUN([AC_LIBLTDL_INSTALLABLE], [])
- # _LTDL_INSTALLABLE
- # -----------------
- # Code shared by LTDL_INSTALLABLE and LTDL_INIT([installable]).
- m4_defun([_LTDL_INSTALLABLE],
- [if test -f $prefix/lib/libltdl.la; then
- lt_save_LDFLAGS="$LDFLAGS"
- LDFLAGS="-L$prefix/lib $LDFLAGS"
- AC_CHECK_LIB([ltdl], [lt_dlinit], [lt_lib_ltdl=yes])
- LDFLAGS="$lt_save_LDFLAGS"
- if test x"${lt_lib_ltdl-no}" = xyes; then
- if test x"$enable_ltdl_install" != xyes; then
- # Don't overwrite $prefix/lib/libltdl.la without --enable-ltdl-install
- AC_MSG_WARN([not overwriting libltdl at $prefix, force with `--enable-ltdl-install'])
- enable_ltdl_install=no
- fi
- elif test x"$enable_ltdl_install" = xno; then
- AC_MSG_WARN([libltdl not installed, but installation disabled])
- fi
- fi
- # If configure.ac declared an installable ltdl, and the user didn't override
- # with --disable-ltdl-install, we will install the shipped libltdl.
- case $enable_ltdl_install in
- no) ac_configure_args="$ac_configure_args --enable-ltdl-install=no"
- LIBLTDL="-lltdl"
- LTDLDEPS=
- LTDLINCL=
- ;;
- *) enable_ltdl_install=yes
- ac_configure_args="$ac_configure_args --enable-ltdl-install"
- LIBLTDL='_LT_BUILD_PREFIX'"${lt_ltdl_dir+$lt_ltdl_dir/}libltdl.la"
- LTDLDEPS=$LIBLTDL
- LTDLINCL='-I${top_srcdir}'"${lt_ltdl_dir+/$lt_ltdl_dir}"
- ;;
- esac
- AC_SUBST([LIBLTDL])
- AC_SUBST([LTDLDEPS])
- AC_SUBST([LTDLINCL])
- # For backwards non-gettext consistent compatibility...
- INCLTDL="$LTDLINCL"
- AC_SUBST([INCLTDL])
- ])# LTDL_INSTALLABLE
- # _LTDL_MODE_DISPATCH
- # -------------------
- m4_define([_LTDL_MODE_DISPATCH],
- [dnl If _LTDL_DIR is `.', then we are configuring libltdl itself:
- m4_if(_LTDL_DIR, [],
- [],
- dnl if _LTDL_MODE was not set already, the default value is `subproject':
- [m4_case(m4_default(_LTDL_MODE, [subproject]),
- [subproject], [AC_CONFIG_SUBDIRS(_LTDL_DIR)
- _LT_SHELL_INIT([lt_dlopen_dir="$lt_ltdl_dir"])],
- [nonrecursive], [_LT_SHELL_INIT([lt_dlopen_dir="$lt_ltdl_dir"; lt_libobj_prefix="$lt_ltdl_dir/"])],
- [recursive], [],
- [m4_fatal([unknown libltdl mode: ]_LTDL_MODE)])])dnl
- dnl Be careful not to expand twice:
- m4_define([$0], [])
- ])# _LTDL_MODE_DISPATCH
- # _LT_LIBOBJ(MODULE_NAME)
- # -----------------------
- # Like AC_LIBOBJ, except that MODULE_NAME goes into _LT_LIBOBJS instead
- # of into LIBOBJS.
- AC_DEFUN([_LT_LIBOBJ], [
- m4_pattern_allow([^_LT_LIBOBJS$])
- _LT_LIBOBJS="$_LT_LIBOBJS $1.$ac_objext"
- ])# _LT_LIBOBJS
- # LTDL_INIT([OPTIONS])
- # --------------------
- # 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. If the shipped ltdl sources are not in a
- # subdirectory named libltdl, the directory name must be given by
- # LT_CONFIG_LTDL_DIR.
- AC_DEFUN([LTDL_INIT],
- [dnl Parse OPTIONS
- _LT_SET_OPTIONS([$0], [$1])
- dnl We need to keep our own list of libobjs separate from our parent project,
- dnl and the easiest way to do that is redefine the AC_LIBOBJs macro while
- dnl we look for our own LIBOBJs.
- m4_pushdef([AC_LIBOBJ], m4_defn([_LT_LIBOBJ]))
- m4_pushdef([AC_LIBSOURCES])
- dnl If not otherwise defined, default to the 1.5.x compatible subproject mode:
- m4_if(_LTDL_MODE, [],
- [m4_define([_LTDL_MODE], m4_default([$2], [subproject]))
- m4_if([-1], [m4_bregexp(_LTDL_MODE, [(subproject|(non)?recursive)])],
- [m4_fatal([unknown libltdl mode: ]_LTDL_MODE)])])
- AC_ARG_WITH([included_ltdl],
- [AS_HELP_STRING([--with-included-ltdl],
- [use the GNU ltdl sources included here])])
- if test "x$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_DECL([lt_dlinterface_register],
- [AC_CHECK_LIB([ltdl], [lt_dladvise_preload],
- [with_included_ltdl=no],
- [with_included_ltdl=yes])],
- [with_included_ltdl=yes],
- [AC_INCLUDES_DEFAULT
- #include <ltdl.h>])],
- [with_included_ltdl=yes],
- [AC_INCLUDES_DEFAULT]
- )
- fi
- dnl If neither LT_CONFIG_LTDL_DIR, LTDL_CONVENIENCE nor LTDL_INSTALLABLE
- dnl was called yet, then for old times' sake, we assume libltdl is in an
- dnl eponymous directory:
- AC_PROVIDE_IFELSE([LT_CONFIG_LTDL_DIR], [], [_LT_CONFIG_LTDL_DIR([libltdl])])
- AC_ARG_WITH([ltdl_include],
- [AS_HELP_STRING([--with-ltdl-include=DIR],
- [use the ltdl headers installed in DIR])])
- if test -n "$with_ltdl_include"; then
- if test -f "$with_ltdl_include/ltdl.h"; then :
- else
- AC_MSG_ERROR([invalid ltdl include directory: `$with_ltdl_include'])
- fi
- else
- with_ltdl_include=no
- fi
- AC_ARG_WITH([ltdl_lib],
- [AS_HELP_STRING([--with-ltdl-lib=DIR],
- [use the libltdl.la installed in DIR])])
- if test -n "$with_ltdl_lib"; then
- if test -f "$with_ltdl_lib/libltdl.la"; then :
- else
- AC_MSG_ERROR([invalid ltdl library directory: `$with_ltdl_lib'])
- fi
- else
- with_ltdl_lib=no
- fi
- case ,$with_included_ltdl,$with_ltdl_include,$with_ltdl_lib, in
- ,yes,no,no,)
- m4_case(m4_default(_LTDL_TYPE, [convenience]),
- [convenience], [_LTDL_CONVENIENCE],
- [installable], [_LTDL_INSTALLABLE],
- [m4_fatal([unknown libltdl build type: ]_LTDL_TYPE)])
- ;;
- ,no,no,no,)
- # If the included ltdl is not to be used, then use the
- # preinstalled libltdl we found.
- AC_DEFINE([HAVE_LTDL], [1],
- [Define this if a modern libltdl is already installed])
- LIBLTDL=-lltdl
- LTDLDEPS=
- LTDLINCL=
- ;;
- ,no*,no,*)
- AC_MSG_ERROR([`--with-ltdl-include' and `--with-ltdl-lib' options must be used together])
- ;;
- *) with_included_ltdl=no
- LIBLTDL="-L$with_ltdl_lib -lltdl"
- LTDLDEPS=
- LTDLINCL="-I$with_ltdl_include"
- ;;
- esac
- INCLTDL="$LTDLINCL"
- # Report our decision...
- AC_MSG_CHECKING([where to find libltdl headers])
- AC_MSG_RESULT([$LTDLINCL])
- AC_MSG_CHECKING([where to find libltdl library])
- AC_MSG_RESULT([$LIBLTDL])
- _LTDL_SETUP
- dnl restore autoconf definition.
- m4_popdef([AC_LIBOBJ])
- m4_popdef([AC_LIBSOURCES])
- AC_CONFIG_COMMANDS_PRE([
- _ltdl_libobjs=
- _ltdl_ltlibobjs=
- if test -n "$_LT_LIBOBJS"; then
- # Remove the extension.
- _lt_sed_drop_objext='s/.o$//;s/.obj$//'
- for i in `for i in $_LT_LIBOBJS; do echo "$i"; done | sed "$_lt_sed_drop_objext" | sort -u`; do
- _ltdl_libobjs="$_ltdl_libobjs $lt_libobj_prefix$i.$ac_objext"
- _ltdl_ltlibobjs="$_ltdl_ltlibobjs $lt_libobj_prefix$i.lo"
- done
- fi
- AC_SUBST([ltdl_LIBOBJS], [$_ltdl_libobjs])
- AC_SUBST([ltdl_LTLIBOBJS], [$_ltdl_ltlibobjs])
- ])
- # Only expand once:
- m4_define([LTDL_INIT])
- ])# LTDL_INIT
- # Old names:
- AU_DEFUN([AC_LIB_LTDL], [LTDL_INIT($@)])
- AU_DEFUN([AC_WITH_LTDL], [LTDL_INIT($@)])
- AU_DEFUN([LT_WITH_LTDL], [LTDL_INIT($@)])
- dnl aclocal-1.4 backwards compatibility:
- dnl AC_DEFUN([AC_LIB_LTDL], [])
- dnl AC_DEFUN([AC_WITH_LTDL], [])
- dnl AC_DEFUN([LT_WITH_LTDL], [])
- # _LTDL_SETUP
- # -----------
- # Perform all the checks necessary for compilation of the ltdl objects
- # -- including compiler checks and header checks. This is a public
- # interface mainly for the benefit of libltdl's own configure.ac, most
- # other users should call LTDL_INIT instead.
- AC_DEFUN([_LTDL_SETUP],
- [AC_REQUIRE([AC_PROG_CC])dnl
- AC_REQUIRE([LT_SYS_MODULE_EXT])dnl
- AC_REQUIRE([LT_SYS_MODULE_PATH])dnl
- AC_REQUIRE([LT_SYS_DLSEARCH_PATH])dnl
- AC_REQUIRE([LT_LIB_DLLOAD])dnl
- AC_REQUIRE([LT_SYS_SYMBOL_USCORE])dnl
- AC_REQUIRE([LT_FUNC_DLSYM_USCORE])dnl
- AC_REQUIRE([LT_SYS_DLOPEN_DEPLIBS])dnl
- AC_REQUIRE([gl_FUNC_ARGZ])dnl
- m4_require([_LT_CHECK_OBJDIR])dnl
- m4_require([_LT_HEADER_DLFCN])dnl
- m4_require([_LT_CHECK_DLPREOPEN])dnl
- m4_require([_LT_DECL_SED])dnl
- dnl Don't require this, or it will be expanded earlier than the code
- dnl that sets the variables it relies on:
- _LT_ENABLE_INSTALL
- dnl _LTDL_MODE specific code must be called at least once:
- _LTDL_MODE_DISPATCH
- # In order that ltdl.c can compile, find out the first AC_CONFIG_HEADERS
- # the user used. This is so that ltdl.h can pick up the parent projects
- # config.h file, The first file in AC_CONFIG_HEADERS must contain the
- # definitions required by ltdl.c.
- # FIXME: Remove use of undocumented AC_LIST_HEADERS (2.59 compatibility).
- AC_CONFIG_COMMANDS_PRE([dnl
- m4_pattern_allow([^LT_CONFIG_H$])dnl
- m4_ifset([AH_HEADER],
- [LT_CONFIG_H=AH_HEADER],
- [m4_ifset([AC_LIST_HEADERS],
- [LT_CONFIG_H=`echo "AC_LIST_HEADERS" | $SED 's,^[[ ]]*,,;s,[[ :]].*$,,'`],
- [])])])
- AC_SUBST([LT_CONFIG_H])
- AC_CHECK_HEADERS([unistd.h dl.h sys/dl.h dld.h mach-o/dyld.h dirent.h],
- [], [], [AC_INCLUDES_DEFAULT])
- AC_CHECK_FUNCS([closedir opendir readdir], [], [AC_LIBOBJ([lt__dirent])])
- AC_CHECK_FUNCS([strlcat strlcpy], [], [AC_LIBOBJ([lt__strl])])
- AC_DEFINE_UNQUOTED([LT_LIBEXT],["$libext"],[The archive extension])
- name=ltdl
- LTDLOPEN=`eval "\$ECHO "$libname_spec""`
- AC_SUBST([LTDLOPEN])
- ])# _LTDL_SETUP
- # _LT_ENABLE_INSTALL
- # ------------------
- m4_define([_LT_ENABLE_INSTALL],
- [AC_ARG_ENABLE([ltdl-install],
- [AS_HELP_STRING([--enable-ltdl-install], [install libltdl])])
- case ,${enable_ltdl_install},${enable_ltdl_convenience} in
- *yes*) ;;
- *) enable_ltdl_convenience=yes ;;
- esac
- m4_ifdef([AM_CONDITIONAL],
- [AM_CONDITIONAL(INSTALL_LTDL, test x"${enable_ltdl_install-no}" != xno)
- AM_CONDITIONAL(CONVENIENCE_LTDL, test x"${enable_ltdl_convenience-no}" != xno)])
- ])# _LT_ENABLE_INSTALL
- # LT_SYS_DLOPEN_DEPLIBS
- # ---------------------
- AC_DEFUN([LT_SYS_DLOPEN_DEPLIBS],
- [AC_REQUIRE([AC_CANONICAL_HOST])dnl
- AC_CACHE_CHECK([whether deplibs are loaded by dlopen],
- [lt_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.
- lt_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.
- lt_cv_sys_dlopen_deplibs=unknown
- ;;
- aix[[4-9]]*)
- lt_cv_sys_dlopen_deplibs=yes
- ;;
- amigaos*)
- case $host_cpu in
- powerpc)
- lt_cv_sys_dlopen_deplibs=no
- ;;
- esac
- ;;
- 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
- lt_cv_sys_dlopen_deplibs=yes
- ;;
- freebsd* | dragonfly*)
- lt_cv_sys_dlopen_deplibs=yes
- ;;
- gnu* | linux* | k*bsd*-gnu)
- # GNU and its variants, using gnu ld.so (Glibc)
- lt_cv_sys_dlopen_deplibs=yes
- ;;
- hpux10*|hpux11*)
- lt_cv_sys_dlopen_deplibs=yes
- ;;
- interix*)
- lt_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.
- lt_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.
- lt_cv_sys_dlopen_deplibs=yes
- ;;
- netbsd*)
- lt_cv_sys_dlopen_deplibs=yes
- ;;
- openbsd*)
- lt_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 explicitly say `no'.
- lt_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'.
- lt_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'.
- lt_cv_sys_dlopen_deplibs=yes
- ;;
- qnx*)
- lt_cv_sys_dlopen_deplibs=yes
- ;;
- solaris*)
- lt_cv_sys_dlopen_deplibs=yes
- ;;
- sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
- libltdl_cv_sys_dlopen_deplibs=yes
- ;;
- esac
- ])
- if test "$lt_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
- ])# LT_SYS_DLOPEN_DEPLIBS
- # Old name:
- AU_ALIAS([AC_LTDL_SYS_DLOPEN_DEPLIBS], [LT_SYS_DLOPEN_DEPLIBS])
- dnl aclocal-1.4 backwards compatibility:
- dnl AC_DEFUN([AC_LTDL_SYS_DLOPEN_DEPLIBS], [])
- # LT_SYS_MODULE_EXT
- # -----------------
- AC_DEFUN([LT_SYS_MODULE_EXT],
- [m4_require([_LT_SYS_DYNAMIC_LINKER])dnl
- AC_CACHE_CHECK([which extension is used for runtime loadable modules],
- [libltdl_cv_shlibext],
- [
- module=yes
- eval libltdl_cv_shlibext=$shrext_cmds
- ])
- if test -n "$libltdl_cv_shlibext"; then
- m4_pattern_allow([LT_MODULE_EXT])dnl
- AC_DEFINE_UNQUOTED([LT_MODULE_EXT], ["$libltdl_cv_shlibext"],
- [Define to the extension used for runtime loadable modules, say, ".so".])
- fi
- ])# LT_SYS_MODULE_EXT
- # Old name:
- AU_ALIAS([AC_LTDL_SHLIBEXT], [LT_SYS_MODULE_EXT])
- dnl aclocal-1.4 backwards compatibility:
- dnl AC_DEFUN([AC_LTDL_SHLIBEXT], [])
- # LT_SYS_MODULE_PATH
- # ------------------
- AC_DEFUN([LT_SYS_MODULE_PATH],
- [m4_require([_LT_SYS_DYNAMIC_LINKER])dnl
- AC_CACHE_CHECK([which variable specifies run-time module search path],
- [lt_cv_module_path_var], [lt_cv_module_path_var="$shlibpath_var"])
- if test -n "$lt_cv_module_path_var"; then
- m4_pattern_allow([LT_MODULE_PATH_VAR])dnl
- AC_DEFINE_UNQUOTED([LT_MODULE_PATH_VAR], ["$lt_cv_module_path_var"],
- [Define to the name of the environment variable that determines the run-time module search path.])
- fi
- ])# LT_SYS_MODULE_PATH
- # Old name:
- AU_ALIAS([AC_LTDL_SHLIBPATH], [LT_SYS_MODULE_PATH])
- dnl aclocal-1.4 backwards compatibility:
- dnl AC_DEFUN([AC_LTDL_SHLIBPATH], [])
- # LT_SYS_DLSEARCH_PATH
- # --------------------
- AC_DEFUN([LT_SYS_DLSEARCH_PATH],
- [m4_require([_LT_SYS_DYNAMIC_LINKER])dnl
- AC_CACHE_CHECK([for the default library search path],
- [lt_cv_sys_dlsearch_path],
- [lt_cv_sys_dlsearch_path="$sys_lib_dlsearch_path_spec"])
- if test -n "$lt_cv_sys_dlsearch_path"; then
- sys_dlsearch_path=
- for dir in $lt_cv_sys_dlsearch_path; do
- if test -z "$sys_dlsearch_path"; then
- sys_dlsearch_path="$dir"
- else
- sys_dlsearch_path="$sys_dlsearch_path$PATH_SEPARATOR$dir"
- fi
- done
- m4_pattern_allow([LT_DLSEARCH_PATH])dnl
- AC_DEFINE_UNQUOTED([LT_DLSEARCH_PATH], ["$sys_dlsearch_path"],
- [Define to the system default library search path.])
- fi
- ])# LT_SYS_DLSEARCH_PATH
- # Old name:
- AU_ALIAS([AC_LTDL_SYSSEARCHPATH], [LT_SYS_DLSEARCH_PATH])
- dnl aclocal-1.4 backwards compatibility:
- dnl AC_DEFUN([AC_LTDL_SYSSEARCHPATH], [])
- # _LT_CHECK_DLPREOPEN
- # -------------------
- m4_defun([_LT_CHECK_DLPREOPEN],
- [m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl
- AC_CACHE_CHECK([whether libtool supports -dlopen/-dlpreopen],
- [libltdl_cv_preloaded_symbols],
- [if test -n "$lt_cv_sys_global_symbol_pipe"; then
- libltdl_cv_preloaded_symbols=yes
- else
- libltdl_cv_preloaded_symbols=no
- fi
- ])
- if test x"$libltdl_cv_preloaded_symbols" = xyes; then
- AC_DEFINE([HAVE_PRELOADED_SYMBOLS], [1],
- [Define if libtool can extract symbol lists from object files.])
- fi
- ])# _LT_CHECK_DLPREOPEN
- # LT_LIB_DLLOAD
- # -------------
- AC_DEFUN([LT_LIB_DLLOAD],
- [m4_pattern_allow([^LT_DLLOADERS$])
- LT_DLLOADERS=
- AC_SUBST([LT_DLLOADERS])
- AC_LANG_PUSH([C])
- LIBADD_DLOPEN=
- AC_SEARCH_LIBS([dlopen], [dl],
- [AC_DEFINE([HAVE_LIBDL], [1],
- [Define if you have the libdl library or equivalent.])
- if test "$ac_cv_search_dlopen" != "none required" ; then
- LIBADD_DLOPEN="-ldl"
- fi
- libltdl_cv_lib_dl_dlopen="yes"
- LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}dlopen.la"],
- [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#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"
- LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}dlopen.la"],
- [AC_CHECK_LIB([svld], [dlopen],
- [AC_DEFINE([HAVE_LIBDL], [1],
- [Define if you have the libdl library or equivalent.])
- LIBADD_DLOPEN="-lsvld" libltdl_cv_func_dlopen="yes"
- LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}dlopen.la"])])])
- if test x"$libltdl_cv_func_dlopen" = xyes || test x"$libltdl_cv_lib_dl_dlopen" = xyes
- then
- lt_save_LIBS="$LIBS"
- LIBS="$LIBS $LIBADD_DLOPEN"
- AC_CHECK_FUNCS([dlerror])
- LIBS="$lt_save_LIBS"
- fi
- AC_SUBST([LIBADD_DLOPEN])
- LIBADD_SHL_LOAD=
- AC_CHECK_FUNC([shl_load],
- [AC_DEFINE([HAVE_SHL_LOAD], [1],
- [Define if you have the shl_load function.])
- LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}shl_load.la"],
- [AC_CHECK_LIB([dld], [shl_load],
- [AC_DEFINE([HAVE_SHL_LOAD], [1],
- [Define if you have the shl_load function.])
- LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}shl_load.la"
- LIBADD_SHL_LOAD="-ldld"])])
- AC_SUBST([LIBADD_SHL_LOAD])
- case $host_os in
- darwin[[1567]].*)
- # We only want this for pre-Mac OS X 10.4.
- AC_CHECK_FUNC([_dyld_func_lookup],
- [AC_DEFINE([HAVE_DYLD], [1],
- [Define if you have the _dyld_func_lookup function.])
- LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}dyld.la"])
- ;;
- beos*)
- LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}load_add_on.la"
- ;;
- cygwin* | mingw* | os2* | pw32*)
- AC_CHECK_DECLS([cygwin_conv_path], [], [], [[#include <sys/cygwin.h>]])
- LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}loadlibrary.la"
- ;;
- esac
- AC_CHECK_LIB([dld], [dld_link],
- [AC_DEFINE([HAVE_DLD], [1],
- [Define if you have the GNU dld library.])
- LT_DLLOADERS="$LT_DLLOADERS ${lt_dlopen_dir+$lt_dlopen_dir/}dld_link.la"])
- AC_SUBST([LIBADD_DLD_LINK])
- m4_pattern_allow([^LT_DLPREOPEN$])
- LT_DLPREOPEN=
- if test -n "$LT_DLLOADERS"
- then
- for lt_loader in $LT_DLLOADERS; do
- LT_DLPREOPEN="$LT_DLPREOPEN-dlpreopen $lt_loader "
- done
- AC_DEFINE([HAVE_LIBDLLOADER], [1],
- [Define if libdlloader will be built on this platform])
- fi
- AC_SUBST([LT_DLPREOPEN])
- dnl This isn't used anymore, but set it for backwards compatibility
- LIBADD_DL="$LIBADD_DLOPEN $LIBADD_SHL_LOAD"
- AC_SUBST([LIBADD_DL])
- AC_LANG_POP
- ])# LT_LIB_DLLOAD
- # Old name:
- AU_ALIAS([AC_LTDL_DLLIB], [LT_LIB_DLLOAD])
- dnl aclocal-1.4 backwards compatibility:
- dnl AC_DEFUN([AC_LTDL_DLLIB], [])
- # LT_SYS_SYMBOL_USCORE
- # --------------------
- # does the compiler prefix global symbols with an underscore?
- AC_DEFUN([LT_SYS_SYMBOL_USCORE],
- [m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl
- AC_CACHE_CHECK([for _ prefix in compiled symbols],
- [lt_cv_sys_symbol_underscore],
- [lt_cv_sys_symbol_underscore=no
- cat > conftest.$ac_ext <<_LT_EOF
- void nm_test_func(){}
- int main(){nm_test_func;return 0;}
- _LT_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' "$ac_nlist" >/dev/null; then
- lt_cv_sys_symbol_underscore=yes
- else
- if grep '^. nm_test_func ' "$ac_nlist" >/dev/null; then
- :
- else
- echo "configure: cannot find nm_test_func in $ac_nlist" >&AS_MESSAGE_LOG_FD
- fi
- fi
- else
- echo "configure: cannot run $lt_cv_sys_global_symbol_pipe" >&AS_MESSAGE_LOG_FD
- fi
- else
- echo "configure: failed program was:" >&AS_MESSAGE_LOG_FD
- cat conftest.c >&AS_MESSAGE_LOG_FD
- fi
- rm -rf conftest*
- ])
- sys_symbol_underscore=$lt_cv_sys_symbol_underscore
- AC_SUBST([sys_symbol_underscore])
- ])# LT_SYS_SYMBOL_USCORE
- # Old name:
- AU_ALIAS([AC_LTDL_SYMBOL_USCORE], [LT_SYS_SYMBOL_USCORE])
- dnl aclocal-1.4 backwards compatibility:
- dnl AC_DEFUN([AC_LTDL_SYMBOL_USCORE], [])
- # LT_FUNC_DLSYM_USCORE
- # --------------------
- AC_DEFUN([LT_FUNC_DLSYM_USCORE],
- [AC_REQUIRE([LT_SYS_SYMBOL_USCORE])dnl
- if test x"$lt_cv_sys_symbol_underscore" = xyes; then
- if test x"$libltdl_cv_func_dlopen" = xyes ||
- test x"$libltdl_cv_lib_dl_dlopen" = xyes ; then
- AC_CACHE_CHECK([whether we have to add an underscore for dlsym],
- [libltdl_cv_need_uscore],
- [libltdl_cv_need_uscore=unknown
- save_LIBS="$LIBS"
- LIBS="$LIBS $LIBADD_DLOPEN"
- _LT_TRY_DLOPEN_SELF(
- [libltdl_cv_need_uscore=no], [libltdl_cv_need_uscore=yes],
- [], [libltdl_cv_need_uscore=cross])
- LIBS="$save_LIBS"
- ])
- fi
- fi
- if test x"$libltdl_cv_need_uscore" = xyes; then
- AC_DEFINE([NEED_USCORE], [1],
- [Define if dlsym() requires a leading underscore in symbol names.])
- fi
- ])# LT_FUNC_DLSYM_USCORE
- # Old name:
- AU_ALIAS([AC_LTDL_DLSYM_USCORE], [LT_FUNC_DLSYM_USCORE])
- dnl aclocal-1.4 backwards compatibility:
- dnl AC_DEFUN([AC_LTDL_DLSYM_USCORE], [])