1# =========================================================================== 2# http://www.gnu.org/software/autoconf-archive/ax_cc_for_build.html 3# =========================================================================== 4# 5# SYNOPSIS 6# 7# AX_CC_FOR_BUILD 8# 9# DESCRIPTION 10# 11# Find a build-time compiler. Sets CC_FOR_BUILD and EXEEXT_FOR_BUILD. 12# 13# LICENSE 14# 15# Copyright (c) 2010 Reuben Thomas <rrt@sc3d.org> 16# Copyright (c) 1999 Richard Henderson <rth@redhat.com> 17# 18# This program is free software: you can redistribute it and/or modify it 19# under the terms of the GNU General Public License as published by the 20# Free Software Foundation, either version 3 of the License, or (at your 21# option) any later version. 22# 23# This program is distributed in the hope that it will be useful, but 24# WITHOUT ANY WARRANTY; without even the implied warranty of 25# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General 26# Public License for more details. 27# 28# You should have received a copy of the GNU General Public License along 29# with this program. If not, see <http://www.gnu.org/licenses/>. 30# 31# As a special exception, the respective Autoconf Macro's copyright owner 32# gives unlimited permission to copy, distribute and modify the configure 33# scripts that are the output of Autoconf when processing the Macro. You 34# need not follow the terms of the GNU General Public License when using 35# or distributing such scripts, even though portions of the text of the 36# Macro appear in them. The GNU General Public License (GPL) does govern 37# all other use of the material that constitutes the Autoconf Macro. 38# 39# This special exception to the GPL applies to versions of the Autoconf 40# Macro released by the Autoconf Archive. When you make and distribute a 41# modified version of the Autoconf Macro, you may extend this special 42# exception to the GPL to apply to your modified version as well. 43 44#serial 2 45 46dnl Get a default for CC_FOR_BUILD to put into Makefile. 47AC_DEFUN([AX_CC_FOR_BUILD], 48[# Put a plausible default for CC_FOR_BUILD in Makefile. 49if test -z "$CC_FOR_BUILD"; then 50 if test "x$cross_compiling" = "xno"; then 51 CC_FOR_BUILD='$(CC)' 52 else 53 CC_FOR_BUILD=gcc 54 fi 55fi 56AC_SUBST(CC_FOR_BUILD) 57# Also set EXEEXT_FOR_BUILD. 58if test "x$cross_compiling" = "xno"; then 59 EXEEXT_FOR_BUILD='$(EXEEXT)' 60else 61 AC_CACHE_CHECK([for build system executable suffix], bfd_cv_build_exeext, 62 [rm -f conftest* 63 echo 'int main () { return 0; }' > conftest.c 64 bfd_cv_build_exeext= 65 ${CC_FOR_BUILD} -o conftest conftest.c 1>&5 2>&5 66 for file in conftest.*; do 67 case $file in 68 *.c | *.o | *.obj | *.ilk | *.pdb) ;; 69 *) bfd_cv_build_exeext=`echo $file | sed -e s/conftest//` ;; 70 esac 71 done 72 rm -f conftest* 73 test x"${bfd_cv_build_exeext}" = x && bfd_cv_build_exeext=no]) 74 EXEEXT_FOR_BUILD="" 75 test x"${bfd_cv_build_exeext}" != xno && EXEEXT_FOR_BUILD=${bfd_cv_build_exeext} 76fi 77AC_SUBST(EXEEXT_FOR_BUILD)])dnl 78