Mercurial > hg > CbC > CbC_gcc

annotate config/ld-symbolic.m4 @ 158:494b0b89df80 default tip

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author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Mon, 25 May 2020 18:13:55 +0900
parents a06113de4d67
children
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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1 dnl Copyright (C) 2007 Free Software Foundation, Inc.
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2 dnl This file is free software, distributed under the terms of the GNU
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3 dnl General Public License. As a special exception to the GNU General
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4 dnl Public License, this file may be distributed as part of a program
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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5 dnl that contains a configuration script generated by Autoconf, under
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6 dnl the same distribution terms as the rest of that program.
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7
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8 dnl Set SYMBOLIC_LDFLAGS to -Bsymbolic-functions for GNU linker if it
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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9 dnl is supported.
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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10 AC_DEFUN([ACX_PROG_LD_GNU_SYMBOLIC],
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11 [AC_CACHE_CHECK([if the GNU linker ($LD) supports -Bsymbolic-functions],
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12 acl_cv_prog_gnu_ld_symbolic, [
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13 acl_cv_prog_gnu_ld_symbolic=no
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14 AC_REQUIRE([AC_LIB_PROG_LD_GNU])
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15 if test x"$with_gnu_ld" = x"yes"; then
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16 if $LD --help 2>&1 </dev/null | grep Bsymbolic-functions 1>&5; then
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17 acl_cv_prog_gnu_ld_symbolic=yes
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18 fi
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19 fi])
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20 if test x"$acl_cv_prog_gnu_ld_symbolic" = x"yes"; then
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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21 SYMBOLIC_LDFLAGS="-Wl,-Bsymbolic-functions"
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22 else
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23 SYMBOLIC_LDFLAGS=''
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24 fi
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25 ])
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26
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27 dnl Set DYNAMIC_LIST_CPP_NEW_LDFLAGS to --dynamic-list-cpp-new for GNU
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28 dnl linker if it is supported.
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29 AC_DEFUN([ACX_PROG_LD_GNU_DYNAMIC_LIST_CPP_NEW],
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30 [AC_CACHE_CHECK([if the GNU linker ($LD) supports --dynamic-list-cpp-new],
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31 acl_cv_prog_gnu_ld_dynamic_list_cpp_new, [
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32 acl_cv_prog_gnu_ld_dynamic_list_cpp_new=no
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33 AC_REQUIRE([ACX_PROG_LD_GNU_SYMBOLIC])
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34 if test x"$with_gnu_ld" = x"yes" -a \
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35 x"$acl_cv_prog_gnu_ld_symbolic" = x"yes"; then
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36 if $LD --help 2>&1 </dev/null | grep dynamic-list-cpp-new 1>&5; then
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37 acl_cv_prog_gnu_ld_dynamic_list_cpp_new=yes
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38 fi
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39 fi])
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40 if test x"$acl_cv_prog_gnu_ld_dynamic_list_cpp_new" = x"yes"; then
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41 DYNAMIC_LIST_CPP_NEW_LDFLAGS="$SYMBOLIC_LDFLAGS -Wl,--dynamic-list-cpp-new"
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42 else
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43 DYNAMIC_LIST_CPP_NEW_LDFLAGS=''
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44 fi
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45 ])