use prior version of ax_check_compile_flag for autotools >=2.60 compatibility
Costa Tsaousis committed
Sep 28, 2016 at 18:24 UTC
0713b7dd22f7744289a06aa352bdacaa7fbcdc0c
1 file changed
+3
-3
m4/ax_check_compile_flag.m4
+3
-3
@@ -55,10 +55,10 @@
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# modified version of the Autoconf Macro, you may extend this special
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# exception to the GPL to apply to your modified version as well.
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-#serial 4
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+#serial 3
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AC_DEFUN([AX_CHECK_COMPILE_FLAG],
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-[AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_IF
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+[AC_PREREQ(2.59)dnl for _AC_LANG_PREFIX
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AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_[]_AC_LANG_ABBREV[]flags_$4_$1])dnl
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AC_CACHE_CHECK([whether _AC_LANG compiler accepts $1], CACHEVAR, [
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ax_check_save_flags=$[]_AC_LANG_PREFIX[]FLAGS
@@ -67,7 +67,7 @@ AC_CACHE_CHECK([whether _AC_LANG compiler accepts $1], CACHEVAR, [
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[AS_VAR_SET(CACHEVAR,[yes])],
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[AS_VAR_SET(CACHEVAR,[no])])
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_AC_LANG_PREFIX[]FLAGS=$ax_check_save_flags])
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-AS_VAR_IF(CACHEVAR,yes,
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+AS_IF([test x"AS_VAR_GET(CACHEVAR)" = xyes],
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[m4_default([$2], :)],
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[m4_default([$3], :)])
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AS_VAR_POPDEF([CACHEVAR])dnl