1dnl @synopsis AC_ADD_CFLAGS
2dnl
3dnl Add the given option to CFLAGS, if it doesn't break the compiler
4
5AC_DEFUN([AC_ADD_CFLAGS],
6[AC_MSG_CHECKING([if $CC accepts $1])
7	ac_add_cflags__old_cflags="$CFLAGS"
8	CFLAGS="$CFLAGS $1"
9	AC_TRY_LINK([#include <stdio.h>],
10		[puts("Hello, World!"); return 0;],
11		AC_MSG_RESULT([yes]),
12		AC_MSG_RESULT([no])
13		CFLAGS="$ac_add_cflags__old_cflags")
14		])
15])# AC_ADD_CFLAGS
16