--- /dev/null
+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