comparison src/libsndfile-1.0.27/M4/add_cflags.m4 @ 40:1df64224f5ac

Current libsndfile source

+dnl @synopsis MN_ADD_CFLAGS
+dnl
+dnl Add the given option to CFLAGS, if it doesn't break the compiler
+
+AC_DEFUN([MN_ADD_CFLAGS],
+[AC_MSG_CHECKING([if $CC accepts $1])
+	ac_add_cflags__old_cflags="$CFLAGS"
+	CFLAGS="$1"
+	AC_TRY_LINK([
+			#include <stdio.h>
+			],
+		[puts("Hello, World!"); return 0;],
+		AC_MSG_RESULT([yes])
+			CFLAGS="$ac_add_cflags__old_cflags $1",
+		AC_MSG_RESULT([no])
+			CFLAGS="$ac_add_cflags__old_cflags"
+		)
+])# MN_ADD_CFLAGS