AM_PROG_LIBTOOL
AC_SUBST(LIBTOOL_DEPS)
-AC_ARG_ENABLE(ltdl-install,
-[ --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)
-
-dnl Read the libtool configuration
-rm -f conftest
-./libtool --config > conftest
-. ./conftest
-rm -f conftest
-
-AC_CACHE_CHECK([which extension is used for shared libraries],
- libltdl_cv_shlibext, [dnl
-(
- last=
- for spec in $library_names_spec; do
- last="$spec"
- done
-changequote(, )
- echo "$last" | sed 's/\[.*\]//;s/^[^.]*//;s/\$.*$//;s/\.$//' > conftest
-changequote([, ])
-)
-libltdl_cv_shlibext=`cat conftest`
-rm -f conftest
-])
-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_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, "$libltdl_cv_shlibpath_var",
- [Define to the name of the environment variable that determines the dynamic library search path. ])
-fi
-
-AC_CACHE_CHECK([for objdir],
- libltdl_cv_objdir, [libltdl_cv_objdir="$objdir"])
-test -z "$libltdl_cv_objdir" && libltdl_cv_objdir=".libs"
-AC_DEFINE_UNQUOTED(LTDL_OBJDIR, "$libltdl_cv_objdir/",
- [Define to the sub-directory in which libtool stores uninstalled libraries. ])
-
AC_HEADER_STDC
AC_CHECK_HEADERS(malloc.h memory.h stdlib.h stdio.h ctype.h dlfcn.h dl.h dld.h)
AC_CHECK_HEADERS(string.h strings.h, break)
AC_CHECK_FUNCS(strchr index, break)
AC_CHECK_FUNCS(strrchr rindex, break)
-AC_CACHE_CHECK([whether libtool supports -dlopen/-dlpreopen],
- libltdl_cv_preloaded_symbols, [dnl
- if test -n "$global_symbol_pipe"; then
- libltdl_cv_preloaded_symbols=yes
- else
- libltdl_cv_preloaded_symbols=no
- fi
-])
-if test x"$libltdl_cv_preloaded_symbols" = x"yes"; then
- AC_DEFINE(HAVE_PRELOADED_SYMBOLS, 1,
- [Define if libtool can extract symbol lists from object files. ])
-fi
-
-LIBADD_DL=
-AC_CHECK_LIB(dl, dlopen, [AC_DEFINE(HAVE_LIBDL, 1) LIBADD_DL="-ldl"],
-[AC_CHECK_FUNC(dlopen, [AC_DEFINE(HAVE_LIBDL, 1)])])
-AC_CHECK_FUNC(shl_load, [AC_DEFINE(HAVE_SHL_LOAD, 1)],
-[AC_CHECK_LIB(dld, shl_load, [AC_DEFINE(HAVE_SHL_LOAD, 1) LIBADD_DL="$LIBADD_DL -ldld"])])
-AC_CHECK_LIB(dld, dld_link, [AC_DEFINE(HAVE_DLD, 1)dnl
-test "x$ac_cv_lib_dld_shl_load" = yes || LIBADD_DL="$LIBADD_DL -ldld"])
-AC_SUBST(LIBADD_DL)
-
-if test "x$ac_cv_func_dlopen" = xyes || test "x$ac_cv_lib_dl_dlopen" = xyes; then
- LIBS_SAVE="$LIBS"
- LIBS="$LIBS $LIBADD_DL"
- AC_CHECK_FUNCS(dlerror)
- LIBS="$LIBS_SAVE"
-fi
-
-dnl Check for command to grab the raw symbol name followed
-dnl by C symbol name from nm.
-AC_REQUIRE([AC_CANONICAL_HOST])dnl
-AC_REQUIRE([AC_PROG_NM])dnl
-# Check for command to grab the raw symbol name followed by C symbol from nm.
-AC_MSG_CHECKING([command to parse $NM output])
-AC_CACHE_VAL(ac_cv_sys_global_symbol_pipe,
-[# These are sane defaults that work on at least a few old systems.
-# {They come from Ultrix. What could be older than Ultrix?!! ;)}
-
-changequote(,)dnl
-# Character class describing NM global symbol codes.
-ac_symcode='[BCDEGRST]'
-
-# Regexp to match symbols that can be accessed directly from C.
-ac_sympat='\([_A-Za-z][_A-Za-z0-9]*\)'
-
-# Transform the above into a raw symbol and a C symbol.
-ac_symxfrm='\1 \2\3 \3'
-
-# Transform an extracted symbol line into a proper C declaration
-ac_global_symbol_to_cdecl="sed -n -e 's/^. .* \(.*\)$/extern char \1;/p'"
-
-# Define system-specific variables.
-case "$host_os" in
-aix*)
- ac_symcode='[BCDT]'
- ;;
-cygwin* | mingw*)
- ac_symcode='[ABCDGISTW]'
- ;;
-hpux*)
- ac_global_symbol_to_cdecl="sed -n -e 's/^T .* \(.*\)$/extern char \1();/p' -e 's/^. .* \(.*\)$/extern char \1;/p'"
- ;;
-irix*)
- ac_symcode='[BCDEGRST]'
- ;;
-solaris*)
- ac_symcode='[BDT]'
- ;;
-esac
-
-# If we're using GNU nm, then use its standard symbol codes.
-if $NM -V 2>&1 | egrep '(GNU|with BFD)' > /dev/null; then
- ac_symcode='[ABCDGISTW]'
-fi
-changequote([,])dnl
-
-# Try without a prefix undercore, then with it.
-for ac_symprfx in "" "_"; do
-
- ac_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[ ]\($ac_symcode\)[ ][ ]*\($ac_symprfx\)$ac_sympat$/$ac_symxfrm/p'"
-
- # Check to see that the pipe works correctly.
- ac_pipe_works=no
- rm -f conftest.$ac_ext
- cat > conftest.$ac_ext <<EOF
-#ifdef __cplusplus
-extern "C" {
-#endif
-char nm_test_var;
-void nm_test_func(){}
-#ifdef __cplusplus
-}
-#endif
-int main(){nm_test_var='a';nm_test_func;return 0;}
-EOF
-
- if AC_TRY_EVAL(ac_compile); then
- # Now try to grab the symbols.
- ac_nlist=conftest.nm
-
- if AC_TRY_EVAL(NM conftest.$ac_objext \| $ac_cv_sys_global_symbol_pipe \> $ac_nlist) && test -s "$ac_nlist"; then
-
- # Try sorting and uniquifying the output.
- if sort "$ac_nlist" | uniq > "$ac_nlist"T; then
- mv -f "$ac_nlist"T "$ac_nlist"
- else
- rm -f "$ac_nlist"T
- fi
-
- # Make sure that we snagged all the symbols we need.
- if egrep ' nm_test_var$' "$ac_nlist" >/dev/null; then
- if egrep ' nm_test_func$' "$ac_nlist" >/dev/null; then
- cat <<EOF > conftest.c
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-EOF
- # Now generate the symbol file.
- eval "$ac_global_symbol_to_cdecl"' < "$ac_nlist" >> conftest.c'
-
- cat <<EOF >> conftest.c
-#if defined (__STDC__) && __STDC__
-# define lt_ptr_t void *
-#else
-# define lt_ptr_t char *
-# define const
-#endif
-
-/* The mapping between symbol names and symbols. */
-const struct {
- const char *name;
- lt_ptr_t address;
-}
-changequote(,)dnl
-lt_preloaded_symbols[] =
-changequote([,])dnl
-{
-EOF
- sed 's/^. \(.*\) \(.*\)$/ {"\2", (lt_ptr_t) \&\2},/' < "$ac_nlist" >> conftest.c
- cat <<\EOF >> conftest.c
- {0, (lt_ptr_t) 0}
-};
-
-#ifdef __cplusplus
-}
-#endif
-EOF
- # Now try linking the two files.
- mv conftest.$ac_objext conftstm.$ac_objext
- ac_save_LIBS="$LIBS"
- ac_save_CFLAGS="$CFLAGS"
- LIBS="conftstm.$ac_objext"
- CFLAGS="$CFLAGS$no_builtin_flag"
- if AC_TRY_EVAL(ac_link) && test -s conftest; then
- ac_pipe_works=yes
- else
- echo "configure: failed program was:" >&AC_FD_CC
- cat conftest.c >&AC_FD_CC
- fi
- LIBS="$ac_save_LIBS"
- CFLAGS="$ac_save_CFLAGS"
- else
- echo "cannot find nm_test_func in $ac_nlist" >&AC_FD_CC
- fi
- else
- echo "cannot find nm_test_var in $ac_nlist" >&AC_FD_CC
- fi
- else
- echo "cannot run $ac_cv_sys_global_symbol_pipe" >&AC_FD_CC
- fi
- else
- echo "$progname: failed program was:" >&AC_FD_CC
- cat conftest.c >&AC_FD_CC
- fi
- rm -rf conftest* conftst*
-
- # Do not use the global_symbol_pipe unless it works.
- if test "$ac_pipe_works" = yes; then
- if test x"$ac_symprfx" = x"_"; then
- ac_cv_sys_symbol_underscore=yes
- else
- ac_cv_sys_symbol_underscore=no
- fi
- break
- else
- ac_cv_sys_global_symbol_pipe=
- fi
-done
-])
-
-ac_result=yes
-if test -z "$ac_cv_sys_global_symbol_pipe"; then
- ac_result=no
-fi
-AC_MSG_RESULT($ac_result)
-
-dnl does the compiler prefix global symbols with an underscore?
-AC_MSG_CHECKING([for _ prefix in compiled symbols])
-AC_CACHE_VAL(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 \| $ac_cv_sys_global_symbol_pipe \> $ac_nlist) && test -s "$ac_nlist"; then
- # See whether the symbols have a leading underscore.
- if egrep '^. _nm_test_func' "$ac_nlist" >/dev/null; then
- ac_cv_sys_symbol_underscore=yes
- else
- if egrep '^. nm_test_func ' "$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 $ac_cv_sys_global_symbol_pipe" >&AC_FD_CC
- fi
-else
- echo "configure: failed program was:" >&AC_FD_CC
- cat conftest.c >&AC_FD_CC
-fi
-rm -rf conftest*
-])
-AC_MSG_RESULT($ac_cv_sys_symbol_underscore)
-
-if test x"$ac_cv_sys_symbol_underscore" = xyes; then
- if test x"$ac_cv_func_dlopen" = xyes ||
- test x"$ac_cv_lib_dl_dlopen" = xyes ; then
- AC_CACHE_CHECK([whether we have to add an underscore for dlsym],
- libltdl_cv_need_uscore, [dnl
- AC_TRY_RUN([
-#if HAVE_DLFCN_H
-#include <dlfcn.h>
-#endif
-
-#include <stdio.h>
-
-#ifdef RTLD_GLOBAL
-# define LTDL_GLOBAL RTLD_GLOBAL
-#else
-# ifdef DL_GLOBAL
-# define LTDL_GLOBAL DL_GLOBAL
-# else
-# define LTDL_GLOBAL 0
-# endif
-#endif
-
-/* We may have to define LTDL_LAZY_OR_NOW in the command line if we
- find out it does not work in some platform. */
-#ifndef LTDL_LAZY_OR_NOW
-# ifdef RTLD_LAZY
-# define LTDL_LAZY_OR_NOW RTLD_LAZY
-# else
-# ifdef DL_LAZY
-# define LTDL_LAZY_OR_NOW DL_LAZY
-# else
-# ifdef RTLD_NOW
-# define LTDL_LAZY_OR_NOW RTLD_NOW
-# else
-# ifdef DL_NOW
-# define LTDL_LAZY_OR_NOW DL_NOW
-# else
-# define LTDL_LAZY_OR_NOW 0
-# endif
-# endif
-# endif
-# endif
-#endif
-
-fnord() { int i=42;}
-main() { void *self, *ptr1, *ptr2; self=dlopen(0,LTDL_GLOBAL|LTDL_LAZY_OR_NOW);
- if(self) { ptr1=dlsym(self,"fnord"); ptr2=dlsym(self,"_fnord");
- if(ptr1 && !ptr2) { dlclose(self); exit(0); } } exit(1); }
-], libltdl_cv_need_uscore=no, libltdl_cv_need_uscore=yes,
- libltdl_cv_need_uscore=cross
-)])
- fi
-fi
-
-if test x"$libltdl_cv_need_uscore" = xyes; then
- AC_DEFINE(NEED_USCORE, 1,
- [Define if dlsym() requires a leading underscode in symbol names. ])
-fi
+AC_LIB_LTDL
dnl Output the makefile
AC_OUTPUT(Makefile)
--- /dev/null
+## libltdl.m4 - Configure ltdl for the target system. -*-Shell-script-*-
+## Copyright (C) 1999 Free Software Foundation, Inc.
+##
+## This program is free software; you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation; either version 2 of the License, or
+## (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
+## distribute this file as part of a program that contains a
+## configuration script generated by Autoconf, you may include it under
+## the same distribution terms that you use for the rest of that program.
+
+# serial 1 AC_LIB_LTDL
+
+AC_DEFUN(AC_LIB_LTDL,
+[AC_PREREQ(2.13)dnl
+AC_REQUIRE([AC_LTDL_ENABLE_INSTALL])dnl
+AC_REQUIRE([AC_LTDL_SHLIBEXT])dnl
+AC_REQUIRE([AC_LTDL_SHLIBPATH])dnl
+AC_REQUIRE([AC_LTDL_OBJDIR])dnl
+AC_REQUIRE([AC_LTDL_DLPREOPEN])dnl
+AC_REQUIRE([AC_LTDL_DLLIB])dnl
+AC_REQUIRE([AC_LTDL_SYMBOL_USCORE])dnl
+])
+
+AC_DEFUN(AC_LTDL_ENABLE_INSTALL,
+[AC_ARG_ENABLE(ltdl-install,
+[ --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_DEFUN(AC_LTDL_SNARF_CONFIG,
+[# Read the libtool configuration
+rm -f conftest
+./libtool --config > conftest
+. ./conftest
+rm -f conftest
+])
+
+AC_DEFUN(AC_LTDL_SHLIBEXT,
+[AC_REQUIRE([AC_LTDL_SNARF_CONFIG])dnl
+AC_CACHE_CHECK([which extension is used for shared libraries],
+ libltdl_cv_shlibext, [dnl
+(
+ last=
+ for spec in $library_names_spec; do
+ last="$spec"
+ done
+changequote(, )
+ echo "$last" | sed 's/\[.*\]//;s/^[^.]*//;s/\$.*$//;s/\.$//' > conftest
+changequote([, ])
+)
+libltdl_cv_shlibext=`cat conftest`
+rm -f conftest
+])
+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_DEFUN(AC_LTDL_SHLIBPATH,
+[AC_REQUIRE([AC_LTDL_SNARF_CONFIG])dnl
+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, "$libltdl_cv_shlibpath_var",
+ [Define to the name of the environment variable that determines the dynamic library search path. ])
+fi
+])
+
+AC_DEFUN(AC_LTDL_OBJDIR,
+[AC_CACHE_CHECK([for objdir],
+ libltdl_cv_objdir, [libltdl_cv_objdir="$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_DEFUN(AC_LTDL_DLPREOPEN,
+[AC_REQUIRE([AC_LTDL_GLOBAL_SYMBOL_PIPE])dnl
+AC_CACHE_CHECK([whether libtool supports -dlopen/-dlpreopen],
+ libltdl_cv_preloaded_symbols, [dnl
+ if test -n "$global_symbol_pipe"; then
+ libltdl_cv_preloaded_symbols=yes
+ else
+ libltdl_cv_preloaded_symbols=no
+ fi
+])
+if test x"$libltdl_cv_preloaded_symbols" = x"yes"; then
+ AC_DEFINE(HAVE_PRELOADED_SYMBOLS, 1,
+ [Define if libtool can extract symbol lists from object files. ])
+fi
+])
+
+AC_DEFUN(AC_LTDL_DLLIB,
+[LIBADD_DL=
+AC_CHECK_LIB(dl, dlopen, [AC_DEFINE(HAVE_LIBDL, 1) LIBADD_DL="-ldl"],
+[AC_CHECK_FUNC(dlopen, [AC_DEFINE(HAVE_LIBDL, 1)])])
+AC_CHECK_FUNC(shl_load, [AC_DEFINE(HAVE_SHL_LOAD, 1)],
+[AC_CHECK_LIB(dld, shl_load, [AC_DEFINE(HAVE_SHL_LOAD, 1) LIBADD_DL="$LIBADD_DL -ldld"])])
+AC_CHECK_LIB(dld, dld_link, [AC_DEFINE(HAVE_DLD, 1)dnl
+test "x$ac_cv_lib_dld_shl_load" = yes || LIBADD_DL="$LIBADD_DL -ldld"])
+AC_SUBST(LIBADD_DL)
+
+if test "x$ac_cv_func_dlopen" = xyes || test "x$ac_cv_lib_dl_dlopen" = xyes; then
+ LIBS_SAVE="$LIBS"
+ LIBS="$LIBS $LIBADD_DL"
+ AC_CHECK_FUNCS(dlerror)
+ LIBS="$LIBS_SAVE"
+fi
+])
+
+AC_DEFUN(AC_LTDL_GLOBAL_SYMBOL_PIPE,
+[dnl Check for command to grab the raw symbol name followed
+dnl by C symbol name from nm.
+AC_REQUIRE([AC_CANONICAL_HOST])dnl
+AC_REQUIRE([AC_PROG_NM])dnl
+# Check for command to grab the raw symbol name followed by C symbol from nm.
+AC_MSG_CHECKING([command to parse $NM output])
+AC_CACHE_VAL(ac_cv_sys_global_symbol_pipe,
+[# These are sane defaults that work on at least a few old systems.
+# {They come from Ultrix. What could be older than Ultrix?!! ;)}
+
+changequote(,)dnl
+# Character class describing NM global symbol codes.
+ac_symcode='[BCDEGRST]'
+
+# Regexp to match symbols that can be accessed directly from C.
+ac_sympat='\([_A-Za-z][_A-Za-z0-9]*\)'
+
+# Transform the above into a raw symbol and a C symbol.
+ac_symxfrm='\1 \2\3 \3'
+
+# Transform an extracted symbol line into a proper C declaration
+ac_global_symbol_to_cdecl="sed -n -e 's/^. .* \(.*\)$/extern char \1;/p'"
+
+# Define system-specific variables.
+case "$host_os" in
+aix*)
+ ac_symcode='[BCDT]'
+ ;;
+cygwin* | mingw*)
+ ac_symcode='[ABCDGISTW]'
+ ;;
+hpux*)
+ ac_global_symbol_to_cdecl="sed -n -e 's/^T .* \(.*\)$/extern char \1();/p' -e 's/^. .* \(.*\)$/extern char \1;/p'"
+ ;;
+irix*)
+ ac_symcode='[BCDEGRST]'
+ ;;
+solaris*)
+ ac_symcode='[BDT]'
+ ;;
+esac
+
+# If we're using GNU nm, then use its standard symbol codes.
+if $NM -V 2>&1 | egrep '(GNU|with BFD)' > /dev/null; then
+ ac_symcode='[ABCDGISTW]'
+fi
+changequote([,])dnl
+
+# Try without a prefix undercore, then with it.
+for ac_symprfx in "" "_"; do
+
+ ac_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[ ]\($ac_symcode\)[ ][ ]*\($ac_symprfx\)$ac_sympat$/$ac_symxfrm/p'"
+
+ # Check to see that the pipe works correctly.
+ ac_pipe_works=no
+ rm -f conftest.$ac_ext
+ cat > conftest.$ac_ext <<EOF
+#ifdef __cplusplus
+extern "C" {
+#endif
+char nm_test_var;
+void nm_test_func(){}
+#ifdef __cplusplus
+}
+#endif
+int main(){nm_test_var='a';nm_test_func;return 0;}
+EOF
+
+ if AC_TRY_EVAL(ac_compile); then
+ # Now try to grab the symbols.
+ ac_nlist=conftest.nm
+
+ if AC_TRY_EVAL(NM conftest.$ac_objext \| $ac_cv_sys_global_symbol_pipe \> $ac_nlist) && test -s "$ac_nlist"; then
+
+ # Try sorting and uniquifying the output.
+ if sort "$ac_nlist" | uniq > "$ac_nlist"T; then
+ mv -f "$ac_nlist"T "$ac_nlist"
+ else
+ rm -f "$ac_nlist"T
+ fi
+
+ # Make sure that we snagged all the symbols we need.
+ if egrep ' nm_test_var$' "$ac_nlist" >/dev/null; then
+ if egrep ' nm_test_func$' "$ac_nlist" >/dev/null; then
+ cat <<EOF > conftest.c
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+EOF
+ # Now generate the symbol file.
+ eval "$ac_global_symbol_to_cdecl"' < "$ac_nlist" >> conftest.c'
+
+ cat <<EOF >> conftest.c
+#if defined (__STDC__) && __STDC__
+# define lt_ptr_t void *
+#else
+# define lt_ptr_t char *
+# define const
+#endif
+
+/* The mapping between symbol names and symbols. */
+const struct {
+ const char *name;
+ lt_ptr_t address;
+}
+changequote(,)dnl
+lt_preloaded_symbols[] =
+changequote([,])dnl
+{
+EOF
+ sed 's/^. \(.*\) \(.*\)$/ {"\2", (lt_ptr_t) \&\2},/' < "$ac_nlist" >> conftest.c
+ cat <<\EOF >> conftest.c
+ {0, (lt_ptr_t) 0}
+};
+
+#ifdef __cplusplus
+}
+#endif
+EOF
+ # Now try linking the two files.
+ mv conftest.$ac_objext conftstm.$ac_objext
+ ac_save_LIBS="$LIBS"
+ ac_save_CFLAGS="$CFLAGS"
+ LIBS="conftstm.$ac_objext"
+ CFLAGS="$CFLAGS$no_builtin_flag"
+ if AC_TRY_EVAL(ac_link) && test -s conftest; then
+ ac_pipe_works=yes
+ else
+ echo "configure: failed program was:" >&AC_FD_CC
+ cat conftest.c >&AC_FD_CC
+ fi
+ LIBS="$ac_save_LIBS"
+ CFLAGS="$ac_save_CFLAGS"
+ else
+ echo "cannot find nm_test_func in $ac_nlist" >&AC_FD_CC
+ fi
+ else
+ echo "cannot find nm_test_var in $ac_nlist" >&AC_FD_CC
+ fi
+ else
+ echo "cannot run $ac_cv_sys_global_symbol_pipe" >&AC_FD_CC
+ fi
+ else
+ echo "$progname: failed program was:" >&AC_FD_CC
+ cat conftest.c >&AC_FD_CC
+ fi
+ rm -rf conftest* conftst*
+
+ # Do not use the global_symbol_pipe unless it works.
+ if test "$ac_pipe_works" = yes; then
+ if test x"$ac_symprfx" = x"_"; then
+ ac_cv_sys_symbol_underscore=yes
+ else
+ ac_cv_sys_symbol_underscore=no
+ fi
+ break
+ else
+ ac_cv_sys_global_symbol_pipe=
+ fi
+done
+])
+
+ac_result=yes
+if test -z "$ac_cv_sys_global_symbol_pipe"; then
+ ac_result=no
+fi
+AC_MSG_RESULT($ac_result)
+])
+
+AC_DEFUN(AC_LTDL_SYMBOL_USCORE,
+[dnl does the compiler prefix global symbols with an underscore?
+AC_REQUIRE([AC_LTDL_GLOBAL_SYMBOL_PIPE])dnl
+AC_MSG_CHECKING([for _ prefix in compiled symbols])
+AC_CACHE_VAL(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 \| $ac_cv_sys_global_symbol_pipe \> $ac_nlist) && test -s "$ac_nlist"; then
+ # See whether the symbols have a leading underscore.
+ if egrep '^. _nm_test_func' "$ac_nlist" >/dev/null; then
+ ac_cv_sys_symbol_underscore=yes
+ else
+ if egrep '^. nm_test_func ' "$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 $ac_cv_sys_global_symbol_pipe" >&AC_FD_CC
+ fi
+else
+ echo "configure: failed program was:" >&AC_FD_CC
+ cat conftest.c >&AC_FD_CC
+fi
+rm -rf conftest*
+])
+AC_MSG_RESULT($ac_cv_sys_symbol_underscore)
+AC_LTDL_DLSYM_USCORE
+])
+
+AC_DEFUN(AC_LTDL_DLSYM_USCORE,
+[AC_REQUIRE([AC_LTDL_SYMBOL_USCORE])dnl
+if test x"$ac_cv_sys_symbol_underscore" = xyes; then
+ if test x"$ac_cv_func_dlopen" = xyes ||
+ test x"$ac_cv_lib_dl_dlopen" = xyes ; then
+ AC_CACHE_CHECK([whether we have to add an underscore for dlsym],
+ libltdl_cv_need_uscore, [dnl
+ AC_TRY_RUN([
+#if HAVE_DLFCN_H
+#include <dlfcn.h>
+#endif
+
+#include <stdio.h>
+
+#ifdef RTLD_GLOBAL
+# define LTDL_GLOBAL RTLD_GLOBAL
+#else
+# ifdef DL_GLOBAL
+# define LTDL_GLOBAL DL_GLOBAL
+# else
+# define LTDL_GLOBAL 0
+# endif
+#endif
+
+/* We may have to define LTDL_LAZY_OR_NOW in the command line if we
+ find out it does not work in some platform. */
+#ifndef LTDL_LAZY_OR_NOW
+# ifdef RTLD_LAZY
+# define LTDL_LAZY_OR_NOW RTLD_LAZY
+# else
+# ifdef DL_LAZY
+# define LTDL_LAZY_OR_NOW DL_LAZY
+# else
+# ifdef RTLD_NOW
+# define LTDL_LAZY_OR_NOW RTLD_NOW
+# else
+# ifdef DL_NOW
+# define LTDL_LAZY_OR_NOW DL_NOW
+# else
+# define LTDL_LAZY_OR_NOW 0
+# endif
+# endif
+# endif
+# endif
+#endif
+
+fnord() { int i=42;}
+main() { void *self, *ptr1, *ptr2; self=dlopen(0,LTDL_GLOBAL|LTDL_LAZY_OR_NOW);
+ if(self) { ptr1=dlsym(self,"fnord"); ptr2=dlsym(self,"_fnord");
+ if(ptr1 && !ptr2) { dlclose(self); exit(0); } } exit(1); }
+], libltdl_cv_need_uscore=no, libltdl_cv_need_uscore=yes,
+ libltdl_cv_need_uscore=cross
+)])
+ fi
+fi
+
+if test x"$libltdl_cv_need_uscore" = xyes; then
+ AC_DEFINE(NEED_USCORE, 1,
+ [Define if dlsym() requires a leading underscode in symbol names. ])
+fi
+])
projects / thirdparty / libtool.git / commitdiff
