$NetBSD: patch-aa,v 1.3 2010/09/10 07:31:45 taca Exp $

Use modern Ruby API.

--- ext/ming/mingc/swfbitmap.c.orig	2008-03-09 17:40:50.000000000 +0000
+++ ext/ming/mingc/swfbitmap.c
@@ -58,7 +58,7 @@ rb_SWFBitmap_s_new(argc, argv, self)
     RAISE_NOF(filename);
 
   if(NIL_P(a)) {
-    len = RSTRING(f)->len;
+    len = RSTRING_LEN(f);
     if(len > 5) {
       ext = &filename[len - 5];
       if(strncmp(ext, ".jpeg", 5) == 0) {