### SuperTux - Removed unused vorbisenc library

# - Try to find the OggVorbis libraries

# Once done this will define

#

#  OGGVORBIS_FOUND - system has OggVorbis

#  OGGVORBIS_VERSION - set either to 1 or 2

#  OGGVORBIS_INCLUDE_DIR - the OggVorbis include directory

#  OGGVORBIS_LIBRARIES - The libraries needed to use OggVorbis

#  OGG_LIBRARY         - The Ogg library

#  VORBIS_LIBRARY      - The Vorbis library

#  VORBISFILE_LIBRARY  - The VorbisFile library

# Copyright (c) 2006, Richard Laerkaeng, <richard@goteborg.utfors.se>

#

# Redistribution and use is allowed according to the terms of the BSD license.

# For details see the accompanying COPYING-CMAKE-SCRIPTS file.

include (CheckLibraryExists)

find_path(VORBIS_INCLUDE_DIR vorbis/vorbisfile.h)

if (OGG_LIBRARY AND VORBIS_LIBRARY AND VORBISFILE_LIBRARY)

   set(OGGVORBIS_FOUND TRUE)

#  [sommer] (for SuperTux) reversed order of libraries, so that cmake 2.4.5 for Windows generates an MSYS Makefile that will link correctly

#  set(OGGVORBIS_LIBRARIES ${OGG_LIBRARY} ${VORBIS_LIBRARY} ${VORBISFILE_LIBRARY})

   set(OGGVORBIS_LIBRARIES ${VORBISFILE_LIBRARY} ${VORBIS_LIBRARY} ${OGG_LIBRARY})

   set(_CMAKE_REQUIRED_LIBRARIES_TMP ${CMAKE_REQUIRED_LIBRARIES})

   set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} ${OGGVORBIS_LIBRARIES})

   check_library_exists(vorbis vorbis_bitrate_addblock "" HAVE_LIBVORBISENC2)

   set(CMAKE_REQUIRED_LIBRARIES ${_CMAKE_REQUIRED_LIBRARIES_TMP})

   if (HAVE_LIBVORBISENC2)

      set (OGGVORBIS_VERSION 2)

   else (HAVE_LIBVORBISENC2)

      set (OGGVORBIS_VERSION 1)

   endif (HAVE_LIBVORBISENC2)

else ()

   set (OGGVORBIS_VERSION)

   set(OGGVORBIS_FOUND FALSE)

endif ()

if (OGGVORBIS_FOUND)

   if (NOT OggVorbis_FIND_QUIETLY)

      message(STATUS "Found OggVorbis: ${OGGVORBIS_LIBRARIES}")

   endif (NOT OggVorbis_FIND_QUIETLY)

else (OGGVORBIS_FOUND)

   if (OggVorbis_FIND_REQUIRED)

      message(FATAL_ERROR "Could NOT find OggVorbis libraries")

   else (OggVorbis_FIND_REQUIRED)

      if (NOT OggVorbis_FIND_QUIETLY)

         message(STATUS "Could NOT find OggVorbis libraries")

      endif (NOT OggVorbis_FIND_QUIETLY)

   endif(OggVorbis_FIND_REQUIRED)

endif (OGGVORBIS_FOUND)