{stdenv, fetchurl, libogg, libvorbis}: stdenv.mkDerivation { name = "libtheora-1.0alpha4"; src = fetchurl { url = http://downloads.xiph.org/releases/theora/libtheora-1.0alpha4.tar.bz2; md5 = "a71ac42ec0f848da327930841a80ff2b"; }; propagatedBuildInputs = [libogg libvorbis]; }