From a964426fbc9e4f4da5d8a2ca9ff0651dbfbf2c1e Mon Sep 17 00:00:00 2001 From: Tatsuhiro Tsujikawa Date: Fri, 22 Jan 2016 23:21:06 +0900 Subject: [PATCH] Update ax_check_compile_flag.m4 --- m4/ax_check_compile_flag.m4 | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/m4/ax_check_compile_flag.m4 b/m4/ax_check_compile_flag.m4 index 51df0c09..ca363971 100644 --- a/m4/ax_check_compile_flag.m4 +++ b/m4/ax_check_compile_flag.m4 @@ -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 3 +#serial 4 AC_DEFUN([AX_CHECK_COMPILE_FLAG], -[AC_PREREQ(2.59)dnl for _AC_LANG_PREFIX +[AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_IF 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_IF([test x"AS_VAR_GET(CACHEVAR)" = xyes], +AS_VAR_IF(CACHEVAR,yes, [m4_default([$2], :)], [m4_default([$3], :)]) AS_VAR_POPDEF([CACHEVAR])dnl