Merge commit '2681924b'

* commit '2681924b':
  libavformat: Fix standalone compilation of the webm muxer

Conflicts:
	libavformat/Makefile
Merged-by: Michael Niedermayer <michaelni@gmx.at>

libavformat/Makefile

@@ -391,7 +391,7 @@ OBJS-$(CONFIG_WAV_MUXER)                 += wavenc.o
 OBJS-$(CONFIG_WC3_DEMUXER)               += wc3movie.o
 OBJS-$(CONFIG_WEBM_MUXER)                += matroskaenc.o matroska.o \
                                             isom.o avc.o \
-                                            flacenc_header.o avlanguage.o
+                                            flacenc_header.o avlanguage.o wv.o
 OBJS-$(CONFIG_WEBVTT_DEMUXER)            += webvttdec.o subtitles.o
 OBJS-$(CONFIG_WSAUD_DEMUXER)             += westwood_aud.o
 OBJS-$(CONFIG_WSVQA_DEMUXER)             += westwood_vqa.o