+++ /dev/null
-## ltdl.m4 - Configure ltdl for the target system. -*-Autoconf-*-
-## Copyright (C) 1999-2000 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.
-
-# 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(2.60)
-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_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],
- [AS_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* | kfreebsd*-gnu | knetbsd*-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*)
- 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 explicitly 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], ["$libltdl_cv_shlibext"],
- [Define to the extension used for shared libraries, say, ".so".])
-fi
-])# AC_LTDL_SHLIBEXT
-
-# AC_LTDL_SYSSEARCHPATH
-# ---------------------
-AC_DEFUN([AC_LTDL_SYSSEARCHPATH],
-[AC_REQUIRE([AC_LIBTOOL_SYS_DYNAMIC_LINKER])
-AC_CACHE_CHECK([for the default library search path],
- [libltdl_cv_sys_search_path],
- [libltdl_cv_sys_search_path="$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="$LIBADD_DL -ldld"],
- [AC_CHECK_LIB([dl], [dlopen],
- [AC_DEFINE([HAVE_LIBDL], [1],
- [Define if you have the libdl library or equivalent.])
- LIBADD_DL="-ldl" libltdl_cv_lib_dl_dlopen="yes"],
- [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#if HAVE_DLFCN_H
-# include <dlfcn.h>
-#endif
- ]], [[dlopen(0, 0);]])],[AC_DEFINE([HAVE_LIBDL], [1],
- [Define if you have the libdl library or equivalent.]) libltdl_cv_func_dlopen="yes"],[AC_CHECK_LIB([svld], [dlopen],
- [AC_DEFINE([HAVE_LIBDL], [1],
- [Define if you have the libdl library or equivalent.])
- LIBADD_DL="-lsvld" libltdl_cv_func_dlopen="yes"],
- [AC_CHECK_LIB([dld], [dld_link],
- [AC_DEFINE([HAVE_DLD], [1],
- [Define if you have the GNU dld library.])
- LIBADD_DL="$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" >&AS_MESSAGE_LOG_FD
- fi
- fi
- else
- echo "configure: cannot run $lt_cv_sys_global_symbol_pipe" >&AS_MESSAGE_LOG_FD
- fi
- else
- echo "configure: failed program was:" >&AS_MESSAGE_LOG_FD
- cat conftest.c >&AS_MESSAGE_LOG_FD
- fi
- rm -rf conftest*
- ])
-])# AC_LTDL_SYMBOL_USCORE
-
-
-# AC_LTDL_DLSYM_USCORE
-# --------------------
-AC_DEFUN([AC_LTDL_DLSYM_USCORE],
-[AC_REQUIRE([AC_LTDL_SYMBOL_USCORE])
-if test x"$ac_cv_sys_symbol_underscore" = xyes; then
- 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 $LIBADD_DL"
- _LT_AC_TRY_DLOPEN_SELF(
- [libltdl_cv_need_uscore=no], [libltdl_cv_need_uscore=yes],
- [], [libltdl_cv_need_uscore=cross])
- LIBS="$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
-])# AC_LTDL_DLSYM_USCORE
-
-# AC_LTDL_FUNC_ARGZ
-# -----------------
-AC_DEFUN([AC_LTDL_FUNC_ARGZ],
-[AC_CHECK_HEADERS([argz.h])
-
-AC_CHECK_TYPES([error_t],
- [],
- [AC_DEFINE([error_t], [int],
- [Define to a type to use for `error_t' if it is not otherwise available.])],
- [#if HAVE_ARGZ_H
-# include <argz.h>
-#endif])
-
-AC_CHECK_FUNCS([argz_append argz_create_sep argz_insert argz_next argz_stringify])
-])# AC_LTDL_FUNC_ARGZ
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