--- twolame-0.3.13/libtwolame/common.h.orig	2011-01-14 13:06:07 +0400
+++ twolame-0.3.13/libtwolame/common.h	2012-04-13 23:23:22 +0400
@@ -26,7 +26,7 @@
 #ifndef _COMMON_H
 #define _COMMON_H
 
-#ifdef _WIN32
+#ifdef _MSC_VER
 # include "../win32/configwin.h"
 #else
 # include "config.h"
