1 # ===========================================================================
2 # https://www.gnu.org/software/autoconf-archive/ax_cc_for_build.html
3 # ===========================================================================
11 # Find a build-time compiler. Sets CC_FOR_BUILD and EXEEXT_FOR_BUILD.
15 # Copyright (c) 2010 Reuben Thomas <rrt@sc3d.org>
16 # Copyright (c) 1999 Richard Henderson <rth@redhat.com>
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19 # under the terms of the GNU General Public License as published by the
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25 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
26 # Public License for more details.
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46 dnl Get a default for CC_FOR_BUILD to put into Makefile.
47 AC_DEFUN([AX_CC_FOR_BUILD],
48 [# Put a plausible default for CC_FOR_BUILD in Makefile.
49 if test -z "$CC_FOR_BUILD"; then
50 if test "x$cross_compiling" = "xno"; then
56 AC_SUBST(CC_FOR_BUILD)
57 # Also set EXEEXT_FOR_BUILD.
58 if test "x$cross_compiling" = "xno"; then
59 EXEEXT_FOR_BUILD='$(EXEEXT)'
61 AC_CACHE_CHECK([for build system executable suffix], bfd_cv_build_exeext,
63 echo 'int main () { return 0; }' > conftest.c
65 ${CC_FOR_BUILD} -o conftest conftest.c 1>&5 2>&5
66 for file in conftest.*; do
68 *.c | *.o | *.obj | *.ilk | *.pdb) ;;
69 *) bfd_cv_build_exeext=`echo $file | sed -e s/conftest//` ;;
73 test x"${bfd_cv_build_exeext}" = x && bfd_cv_build_exeext=no])
75 test x"${bfd_cv_build_exeext}" != xno && EXEEXT_FOR_BUILD=${bfd_cv_build_exeext}
77 AC_SUBST(EXEEXT_FOR_BUILD)])dnl