diff -urN petran-1.1.0.orig/inc/h_endian.h petran-1.1.0/inc/h_endian.h
--- petran-1.1.0.orig/inc/h_endian.h	2005-01-16 16:23:18.000000000 +0200
+++ petran-1.1.0/inc/h_endian.h	2007-07-30 19:54:21.000000000 +0300
@@ -284,8 +284,8 @@
 #define pflipi(a,n) (void)0
 #define pflips(a,n) (void)0
 
-#define vflipi(x) (void)0
-#define vflips(x) (void)0
+#define vflipi(x) (x)
+#define vflips(x) (x)
 
 #define flipIMAGE_DOS_HEADER(x) (void)0
 #define flipIMAGE_OS2_HEADER(x) (void)0