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Diffstat (limited to 'mpc/m4/ax_gcc_version.m4')
| -rw-r--r-- | mpc/m4/ax_gcc_version.m4 | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/mpc/m4/ax_gcc_version.m4 b/mpc/m4/ax_gcc_version.m4 new file mode 100644 index 0000000000..9923c08028 --- /dev/null +++ b/mpc/m4/ax_gcc_version.m4 @@ -0,0 +1,65 @@ +# =========================================================================== +# http://www.gnu.org/software/autoconf-archive/ax_gcc_version.html +# =========================================================================== +# +# SYNOPSIS +# +# AX_GCC_VERSION +# +# DESCRIPTION +# +# This macro retrieves the gcc version and returns it in the GCC_VERSION +# variable if available, an empty string otherwise. +# +# LICENSE +# +# Copyright (c) 2009 Francesco Salvestrini <salvestrini@users.sourceforge.net> +# +# This program is free software; you can redistribute it and/or modify it +# under the terms of the GNU General Public License as published by the +# Free Software Foundation; either version 2 of the License, or (at your +# option) any later version. +# +# This program is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General +# Public License for more details. +# +# You should have received a copy of the GNU General Public License along +# with this program. If not, see <http://www.gnu.org/licenses/>. +# +# As a special exception, the respective Autoconf Macro's copyright owner +# gives unlimited permission to copy, distribute and modify the configure +# scripts that are the output of Autoconf when processing the Macro. You +# need not follow the terms of the GNU General Public License when using +# or distributing such scripts, even though portions of the text of the +# Macro appear in them. The GNU General Public License (GPL) does govern +# all other use of the material that constitutes the Autoconf Macro. +# +# This special exception to the GPL applies to versions of the Autoconf +# Macro released by the Autoconf Archive. When you make and distribute a +# modified version of the Autoconf Macro, you may extend this special +# exception to the GPL to apply to your modified version as well. + +#serial 7 + +AC_DEFUN([AX_GCC_VERSION], [ + GCC_VERSION="" + AX_GCC_OPTION([-dumpversion],[],[],[ + ax_gcc_version_option=yes + ],[ + ax_gcc_version_option=no + ]) + AS_IF([test "x$GCC" = "xyes"],[ + AS_IF([test "x$ax_gcc_version_option" != "xno"],[ + AC_CACHE_CHECK([gcc version],[ax_cv_gcc_version],[ + ax_cv_gcc_version="`$CC -dumpversion`" + AS_IF([test "x$ax_cv_gcc_version" = "x"],[ + ax_cv_gcc_version="" + ]) + ]) + GCC_VERSION=$ax_cv_gcc_version + ]) + ]) + AC_SUBST([GCC_VERSION]) +]) |