From: Vinson Lee Date: Thu, 31 Aug 2017 22:38:57 +0000 (-0700) Subject: m4: Use older autoconf 2.63 compatible ax_check_compile_flag. X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=39a69f0692722e05a221b1db4cfd8100f2f20684;p=mesa.git m4: Use older autoconf 2.63 compatible ax_check_compile_flag. CentOS 6 and RHEL 6 have autoconf 2.63. Fixes: e4b2b69e828c ("configure: Add and use AX_CHECK_COMPILE_FLAG") Signed-off-by: Vinson Lee Reviewed-by: Matt Turner --- diff --git a/m4/ax_check_compile_flag.m4 b/m4/ax_check_compile_flag.m4 index dcabb92a141..51df0c09a7a 100644 --- a/m4/ax_check_compile_flag.m4 +++ b/m4/ax_check_compile_flag.m4 @@ -1,5 +1,5 @@ # =========================================================================== -# https://www.gnu.org/software/autoconf-archive/ax_check_compile_flag.html +# http://www.gnu.org/software/autoconf-archive/ax_check_compile_flag.html # =========================================================================== # # SYNOPSIS @@ -40,7 +40,7 @@ # Public License for more details. # # You should have received a copy of the GNU General Public License along -# with this program. If not, see . +# with this program. If not, see . # # As a special exception, the respective Autoconf Macro's copyright owner # gives unlimited permission to copy, distribute and modify the configure @@ -55,10 +55,10 @@ # modified version of the Autoconf Macro, you may extend this special # exception to the GPL to apply to your modified version as well. -#serial 5 +#serial 3 AC_DEFUN([AX_CHECK_COMPILE_FLAG], -[AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_IF +[AC_PREREQ(2.59)dnl for _AC_LANG_PREFIX AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_[]_AC_LANG_ABBREV[]flags_$4_$1])dnl AC_CACHE_CHECK([whether _AC_LANG compiler accepts $1], CACHEVAR, [ ax_check_save_flags=$[]_AC_LANG_PREFIX[]FLAGS @@ -67,7 +67,7 @@ AC_CACHE_CHECK([whether _AC_LANG compiler accepts $1], CACHEVAR, [ [AS_VAR_SET(CACHEVAR,[yes])], [AS_VAR_SET(CACHEVAR,[no])]) _AC_LANG_PREFIX[]FLAGS=$ax_check_save_flags]) -AS_VAR_IF(CACHEVAR,yes, +AS_IF([test x"AS_VAR_GET(CACHEVAR)" = xyes], [m4_default([$2], :)], [m4_default([$3], :)]) AS_VAR_POPDEF([CACHEVAR])dnl