cmake_modules/FindOggVorbis.cmake
author sheepluva
Wed, 27 Apr 2016 01:06:29 +0200
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# - Try to find the OggVorbis libraries
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# Once done this will define
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#
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#  OGGVORBIS_FOUND       - system has both Ogg and Vorbis
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#  OGGVORBIS_VERSION     - set either to 1 or 2
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#  OGGVORBIS_INCLUDE_DIR - the OggVorbis include directory
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#  OGGVORBIS_LIBRARIES   - the libraries needed to use OggVorbis
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#
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#  OGG_LIBRARY           - the Ogg library
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#  OGG_INCLUDE_DIR       - the Ogg include directory
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#  VORBIS_LIBRARY        - the Vorbis library
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#  VORBIS_INCLUDE_DIR    - the Vorbis include directory
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#  VORBISFILE_LIBRARY    - the VorbisFile library
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#
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# Copyright (c) 2006, Richard Laerkaeng <richard@goteborg.utfors.se>
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# Copyright (c) 2013, Vittorio Giovara <vittorio.giovara@gmail.com>
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#
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# Redistribution and use is allowed according to the terms of the BSD license.
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# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
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### sommer [SuperTux]
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##  - Removed unused vorbisenc library
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##  - reversed order of libraries, so that cmake 2.4.5 for Windows generates an MSYS Makefile that will link correctly
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### koda [Hedgewars]
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##  - split ogg and vorbis lookup
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##  - special case for framework handling
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##  - standard variables handling
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include (CheckLibraryExists)
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include (FindPackageHandleStandardArgs)
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find_path(OGG_INCLUDE_DIR ogg.h PATH_SUFFIXES ogg)
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find_path(VORBIS_INCLUDE_DIR vorbisfile.h PATH_SUFFIXES vorbis)
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find_library(OGG_LIBRARY NAMES Ogg ogg)
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find_library(VORBIS_LIBRARY NAMES Vorbis vorbis)
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find_library(VORBISFILE_LIBRARY NAMES vorbisfile)
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set(_CMAKE_REQUIRED_LIBRARIES_TMP ${CMAKE_REQUIRED_LIBRARIES})
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set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} ${OGGVORBIS_LIBRARIES})
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check_library_exists(${VORBIS_LIBRARY} vorbis_bitrate_addblock "" HAVE_LIBVORBISENC2)
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set(CMAKE_REQUIRED_LIBRARIES ${_CMAKE_REQUIRED_LIBRARIES_TMP})
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if(HAVE_LIBVORBISENC2)
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    set(OGGVORBIS_VERSION 2)
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else(HAVE_LIBVORBISENC2)
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    set(OGGVORBIS_VERSION 1)
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endif(HAVE_LIBVORBISENC2)
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if(${OGG_LIBRARY} MATCHES ".framework" AND ${VORBIS_LIBRARY} MATCHES ".framework")
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    set(VORBISFILE_LIBRARY "") #vorbisfile will appear as NOTFOUND and discarded
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    set(fphsa_vorbis_list VORBIS_LIBRARY)
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else()
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    set(fphsa_vorbis_list VORBISFILE_LIBRARY VORBIS_LIBRARY)
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endif()
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find_package_handle_standard_args(OggVorbis DEFAULT_MSG ${fphsa_vorbis_list} OGG_LIBRARY
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                                                        OGG_INCLUDE_DIR VORBIS_INCLUDE_DIR)
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unset(fphsa_vorbis_list)
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set(OGGVORBIS_LIBRARIES ${VORBISFILE_LIBRARY} ${VORBIS_LIBRARY} ${OGG_LIBRARY})
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set(OGGVORBIS_INCLUDE_DIR ${VORBIS_INCLUDE_DIR} ${OGG_INCLUDE_DIR})
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mark_as_advanced(OGGVORBIS_VERSION OGGVORBIS_INCLUDE_DIR OGGVORBIS_LIBRARIES
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                 OGG_LIBRARY OGG_INCLUDE_DIR VORBIS_LIBRARY VORBIS_INCLUDE_DIR VORBISFILE_LIBRARY)
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