1 dnl Copyright (C) 2007 Free Software Foundation, Inc.
2 dnl This file is free software, distributed under the terms of the GNU
3 dnl General Public License. As a special exception to the GNU General
4 dnl Public License, this file may be distributed as part of a program
5 dnl that contains a configuration script generated by Autoconf, under
6 dnl the same distribution terms as the rest of that program.
8 dnl Set SYMBOLIC_LDFLAGS to -Bsymbolic-functions for GNU linker if it
10 AC_DEFUN([ACX_PROG_LD_GNU_SYMBOLIC],
11 [AC_CACHE_CHECK([if the GNU linker ($LD) supports -Bsymbolic-functions],
12 acl_cv_prog_gnu_ld_symbolic, [
13 acl_cv_prog_gnu_ld_symbolic=no
14 AC_REQUIRE([AC_LIB_PROG_LD_GNU])
15 if test x"$with_gnu_ld" = x"yes"; then
16 if $LD --help 2>&1 </dev/null | grep Bsymbolic-functions 1>&5; then
17 acl_cv_prog_gnu_ld_symbolic=yes
20 if test x"$acl_cv_prog_gnu_ld_symbolic" = x"yes"; then
21 SYMBOLIC_LDFLAGS="-Wl,-Bsymbolic-functions"
27 dnl Set DYNAMIC_LIST_CPP_NEW_LDFLAGS to --dynamic-list-cpp-new for GNU
28 dnl linker if it is supported.
29 AC_DEFUN([ACX_PROG_LD_GNU_DYNAMIC_LIST_CPP_NEW],
30 [AC_CACHE_CHECK([if the GNU linker ($LD) supports --dynamic-list-cpp-new],
31 acl_cv_prog_gnu_ld_dynamic_list_cpp_new, [
32 acl_cv_prog_gnu_ld_dynamic_list_cpp_new=no
33 AC_REQUIRE([ACX_PROG_LD_GNU_SYMBOLIC])
34 if test x"$with_gnu_ld" = x"yes" -a \
35 x"$acl_cv_prog_gnu_ld_symbolic" = x"yes"; then
36 if $LD --help 2>&1 </dev/null | grep dynamic-list-cpp-new 1>&5; then
37 acl_cv_prog_gnu_ld_dynamic_list_cpp_new=yes
40 if test x"$acl_cv_prog_gnu_ld_dynamic_list_cpp_new" = x"yes"; then
41 DYNAMIC_LIST_CPP_NEW_LDFLAGS="$SYMBOLIC_LDFLAGS -Wl,--dynamic-list-cpp-new"
43 DYNAMIC_LIST_CPP_NEW_LDFLAGS=''