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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. | |
7 | ||
8 | dnl Set SYMBOLIC_LDFLAGS to -Bsymbolic-functions for GNU linker if it | |
9 | dnl is supported. | |
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 $LD --help 2>&1 </dev/null | grep Bsymbolic-functions 1>&5; then | |
17 | acl_cv_prog_gnu_ld_symbolic=yes | |
18 | fi | |
19 | fi]) | |
20 | if test x"$acl_cv_prog_gnu_ld_symbolic" = x"yes"; then | |
21 | SYMBOLIC_LDFLAGS="-Wl,-Bsymbolic-functions" | |
22 | else | |
23 | SYMBOLIC_LDFLAGS='' | |
24 | fi | |
25 | ]) | |
26 | ||
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 $LD --help 2>&1 </dev/null | grep dynamic-list-cpp-new 1>&5; then | |
37 | acl_cv_prog_gnu_ld_dynamic_list_cpp_new=yes | |
38 | fi | |
39 | fi]) | |
40 | if test x"$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" | |
42 | else | |
43 | DYNAMIC_LIST_CPP_NEW_LDFLAGS='' | |
44 | fi | |
45 | ]) |