cannam@85: dnl @synopsis MN_ADD_CFLAGS
cannam@85: dnl
cannam@85: dnl Add the given option to CFLAGS, if it doesn't break the compiler
cannam@85: 
cannam@85: AC_DEFUN([MN_ADD_CFLAGS],
cannam@85: [AC_MSG_CHECKING([if $CC accepts $1])
cannam@85: 	ac_add_cflags__old_cflags="$CFLAGS"
cannam@85: 	CFLAGS="$1"
cannam@85: 	AC_TRY_LINK([
cannam@85: 			#include <stdio.h>
cannam@85: 			],
cannam@85: 		[puts("Hello, World!"); return 0;],
cannam@85: 		AC_MSG_RESULT([yes])
cannam@85: 			CFLAGS="$ac_add_cflags__old_cflags $1",
cannam@85: 		AC_MSG_RESULT([no])
cannam@85: 			CFLAGS="$ac_add_cflags__old_cflags"
cannam@85: 		)
cannam@85: ])# MN_ADD_CFLAGS