contribs: fix theora patching

Run ./autogen.sh instead of autoconf, so that we don't need to patch
Makefile.in too (which was broken)

extras/contrib/src/Makefile

@@ -765,7 +765,7 @@ endif
 ifdef HAVE_WIN32
 	patch -p0 < Patches/theora-doc.patch
 endif
-	(cd $@; autoconf)
+	(cd $@; ./autogen.sh)
 
 THEORACONF = --disable-sdltest --disable-oggtest --disable-vorbistest --disable-examples
 ifdef HAVE_WIN32

extras/contrib/src/Patches/theora-doc.patch

@@ -39,16 +39,3 @@
  
  
  # we include the whole debian/ dir in EXTRA_DIST because there's a problem
---- libtheora/Makefile.in	2008-10-07 10:21:32.000000000 +0200
-+++ libtheora.new/Makefile.in	2008-10-07 10:21:05.000000000 +0200
-@@ -245,7 +245,9 @@ top_srcdir = @top_srcdir@
- AUTOMAKE_OPTIONS = foreign 1.6 dist-zip dist-bzip2
- @THEORA_ENABLE_EXAMPLES_FALSE@EXAMPLES_DIR =
- @THEORA_ENABLE_EXAMPLES_TRUE@EXAMPLES_DIR = examples
--SUBDIRS = lib include doc tests m4 $(EXAMPLES_DIR)
-+@THEORA_ENABLE_DOCS_FALSE@DOC_DIR=
-+@THEORA_ENABLE_DOCS_TRUE@DOC_DIR=doc
-+SUBDIRS = lib include ${DOC_DIR} tests m4 $(EXAMPLES_DIR)
- 
- # we include the whole debian/ dir in EXTRA_DIST because there's a problem
-# with autotools and HFS+ MacOSX file systems that caused debian/Makefile.am
\ No newline at end of file