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# ltdl.m4 - Configure ltdl for the target system. -*-Autoconf-*- # # Copyright (C) 1999-2006, 2007, 2008, 2011 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 18 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])]) m4_pattern_allow([LT_LIBEXT])dnl AC_DEFINE_UNQUOTED([LT_LIBEXT],["$libext"],[The archive extension]) name= eval "lt_libprefix=\"$libname_spec\"" m4_pattern_allow([LT_LIBPREFIX])dnl AC_DEFINE_UNQUOTED([LT_LIBPREFIX],["$lt_libprefix"],[The archive prefix]) name=ltdl eval "LTDLOPEN=\"$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 | kopensolaris*-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=$shrext_cmds module=no eval libltdl_cv_shrext=$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 if test "$libltdl_cv_shrext" != "$libltdl_cv_shlibext"; then m4_pattern_allow([LT_SHARED_EXT])dnl AC_DEFINE_UNQUOTED([LT_SHARED_EXT], ["$libltdl_cv_shrext"], [Define to the shared library suffix, say, ".dylib".]) fi ])# LT_SYS_MODULE_EXT # Old name: AU_ALIAS([AC_LTDL_SHLIBEXT], [LT_SYS_MODULE_EXT]) dnl aclocal-1.4 backwards compatibility: dnl AC_DEFUN([AC_LTDL_SHLIBEXT], []) # LT_SYS_MODULE_PATH # ------------------ AC_DEFUN([LT_SYS_MODULE_PATH], [m4_require([_LT_SYS_DYNAMIC_LINKER])dnl AC_CACHE_CHECK([which variable specifies run-time module search path], [lt_cv_module_path_var], [lt_cv_module_path_var="$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], [])
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