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