From 695e4e1a9862a5d2bc28dd31aa4cfafd4fd0caa4 Mon Sep 17 00:00:00 2001 From: Michael Forney Date: Thu, 3 Oct 2013 02:36:05 -0700 Subject: build-sys: Use _POSIX_VERSION to determine support for %m %m is included in POSIX 2008, so we can check if the libc implements that before failing. Signed-off-by: Karel Zak --- configure.ac | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'configure.ac') diff --git a/configure.ac b/configure.ac index cbcda46c8..95ff8b3d2 100644 --- a/configure.ac +++ b/configure.ac @@ -430,6 +430,7 @@ AC_CACHE_VAL([scanf_cv_alloc_modifier], [AC_COMPILE_IFELSE([AC_LANG_SOURCE([ #include + #include #ifdef __GLIBC__ @@ -437,8 +438,13 @@ AC_CACHE_VAL([scanf_cv_alloc_modifier], #error %m is not available #endif - #else + #elif defined(_POSIX_VERSION) + #if _POSIX_VERSION < 200809L + #error %m is not available + #endif + + #else #error Your C-library is not supported. #endif ])], -- cgit v1.2.3-55-g7522