--- lib/direct/system.c.orig       2007-08-08 03:43:00.000000000 +0800
+++ lib/direct/system.c    2007-10-11 14:32:34.000000000 +0800
@@ -36,7 +36,9 @@

 #if HAVE_ASM_PAGE_H
 #include <asm/page.h>
-#else
+#endif
+
+#ifndef PAGE_SIZE
 #define PAGE_SIZE   sysconf( _SC_PAGESIZE )
 #endif