diff -r b766f3af24bd -r 04c8442bd9d1 core/systems/LibrarySys.h
--- a/core/systems/LibrarySys.h	Wed Dec 13 11:10:02 2006 +0000
+++ b/core/systems/LibrarySys.h	Wed Dec 13 11:13:50 2006 +0000
@@ -58,6 +58,7 @@
 	virtual bool IsPathFile(const char *path);
 	virtual bool IsPathDirectory(const char *path);
 	virtual void GetPlatformError(char *error, size_t err_max);
+	virtual void PathFormat(char *buffer, size_t len, const char *fmt, ...);
 };
 
 extern LibrarySystem g_LibSys;