--- a/include/SDL_rwops.h	Tue Jul 10 04:45:50 2007 +0000
+++ b/include/SDL_rwops.h	Tue Jul 10 05:01:22 2007 +0000
@@ -76,6 +76,12 @@
         {
             int append;
             void *h;
+            struct
+            {
+                void *data;
+                int size;
+                int left;
+            } buffer;
         } win32io;
 #endif
 #ifdef HAVE_STDIO_H