+endif (NOT GLU_FOUND)
+
+option (LUGARU_FORCE_INTERNAL_VORBIS "Force internal Vorbis, even if there's a system version" False)
+if (NOT LUGARU_FORCE_INTERNAL_VORBIS)
+ find_package(OggVorbis)
+endif (NOT LUGARU_FORCE_INTERNAL_VORBIS)
+if (NOT OggVorbis_FOUND)
+ message(STATUS "Using internal copy of Ogg Vorbis")