diff -r 000000000000 -r 6474c204b198 media/libmkv/bock_fix.patch
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/media/libmkv/bock_fix.patch	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,16 @@
+diff --git a/third_party/libmkv/WebMElement.h b/third_party/libmkv/WebMElement.h
+index d9ad0a0..717e739 100644
+--- a/third_party/libmkv/WebMElement.h
++++ b/third_party/libmkv/WebMElement.h
+@@ -10,11 +10,6 @@
+ #ifndef MKV_CONTEXT_HPP
+ #define MKV_CONTEXT_HPP 1
+ 
+-void writeSimpleBock(EbmlGlobal *ebml, unsigned char trackNumber, unsigned short timeCode,
+-                     int isKeyframe, unsigned char lacingFlag, int  discardable,
+-                     unsigned char *data, unsigned long dataLength);
+-
+-
+ // these are helper functions
+ void writeHeader(EbmlGlobal *ebml);
+ void writeSegmentInformation(EbmlGlobal *ebml, EbmlLoc *startInfo, unsigned long timeCodeScale, double duration);