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46 lines
1.7 KiB
Plaintext
46 lines
1.7 KiB
Plaintext
dnl Copyright (C) 2007 Free Software Foundation, Inc.
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dnl This file is free software, distributed under the terms of the GNU
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dnl General Public License. As a special exception to the GNU General
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dnl Public License, this file may be distributed as part of a program
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dnl that contains a configuration script generated by Autoconf, under
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dnl the same distribution terms as the rest of that program.
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dnl Set SYMBOLIC_LDFLAGS to -Bsymbolic-functions for GNU linker if it
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dnl is supported.
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AC_DEFUN([ACX_PROG_LD_GNU_SYMBOLIC],
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[AC_CACHE_CHECK([if the GNU linker ($LD) supports -Bsymbolic-functions],
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acl_cv_prog_gnu_ld_symbolic, [
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acl_cv_prog_gnu_ld_symbolic=no
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AC_REQUIRE([AC_LIB_PROG_LD_GNU])
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if test x"$with_gnu_ld" = x"yes"; then
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if $LD --help 2>&1 </dev/null | grep Bsymbolic-functions 1>&5; then
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acl_cv_prog_gnu_ld_symbolic=yes
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fi
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fi])
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if test x"$acl_cv_prog_gnu_ld_symbolic" = x"yes"; then
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SYMBOLIC_LDFLAGS="-Wl,-Bsymbolic-functions"
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else
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SYMBOLIC_LDFLAGS=''
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fi
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])
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dnl Set DYNAMIC_LIST_CPP_NEW_LDFLAGS to --dynamic-list-cpp-new for GNU
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dnl linker if it is supported.
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AC_DEFUN([ACX_PROG_LD_GNU_DYNAMIC_LIST_CPP_NEW],
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[AC_CACHE_CHECK([if the GNU linker ($LD) supports --dynamic-list-cpp-new],
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acl_cv_prog_gnu_ld_dynamic_list_cpp_new, [
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acl_cv_prog_gnu_ld_dynamic_list_cpp_new=no
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AC_REQUIRE([ACX_PROG_LD_GNU_SYMBOLIC])
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if test x"$with_gnu_ld" = x"yes" -a \
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x"$acl_cv_prog_gnu_ld_symbolic" = x"yes"; then
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if $LD --help 2>&1 </dev/null | grep dynamic-list-cpp-new 1>&5; then
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acl_cv_prog_gnu_ld_dynamic_list_cpp_new=yes
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fi
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fi])
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if test x"$acl_cv_prog_gnu_ld_dynamic_list_cpp_new" = x"yes"; then
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DYNAMIC_LIST_CPP_NEW_LDFLAGS="$SYMBOLIC_LDFLAGS -Wl,--dynamic-list-cpp-new"
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else
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DYNAMIC_LIST_CPP_NEW_LDFLAGS=''
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fi
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])
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