--- libavcodec/Makefile.orig	2014-04-08 16:36:02.000000000 +0200
+++ libavcodec/Makefile	2014-04-08 16:36:14.000000000 +0200
@@ -687,7 +687,7 @@
                                           aac_tablegen_decl.h           \
                                           fft-internal.h                \
                                           tableprint.h                  \
-                                          $(ARCH)/vp56_arith.h          \
+                                          $(LIBAV_ARCH)/vp56_arith.h          \
 
 SKIPHEADERS-$(CONFIG_DXVA2)            += dxva2.h dxva2_internal.h
 SKIPHEADERS-$(CONFIG_LIBSCHROEDINGER)  += libschroedinger.h