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# - 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_DIRS - the OggVorbis include directories
# OGGVORBIS_LIBRARIES - The libraries needed to use OggVorbis
# OGG_LIBRARY - The Ogg library
# VORBIS_LIBRARY - The Vorbis library
# VORBISFILE_LIBRARY - The VorbisFile library
# VORBISENC_LIBRARY - The VorbisEnc 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 (CheckFunctionExists)
find_path(VORBIS_INCLUDE_DIR vorbis/vorbisfile.h)
find_path(OGG_INCLUDE_DIR ogg/ogg.h)
find_library(OGG_LIBRARY NAMES ogg)
find_library(VORBIS_LIBRARY NAMES vorbis)
find_library(VORBISFILE_LIBRARY NAMES vorbisfile)
find_library(VORBISENC_LIBRARY NAMES vorbisenc)
mark_as_advanced(VORBIS_INCLUDE_DIR OGG_INCLUDE_DIR
OGG_LIBRARY VORBIS_LIBRARY VORBISFILE_LIBRARY VORBISENC_LIBRARY)
if(VORBIS_INCLUDE_DIR AND VORBIS_LIBRARY AND VORBISFILE_LIBRARY)
set(OGGVORBIS_FOUND TRUE)
set(OGGVORBIS_LIBRARIES ${OGG_LIBRARY} ${VORBIS_LIBRARY} ${VORBISFILE_LIBRARY} ${VORBISENC_LIBRARY})
set(OGGVORBIS_INCLUDE_DIRS ${OGG_INCLUDE_DIR} ${VORBIS_INCLUDE_DIR})
if(VORBISENC_LIBRARY)
set(OGGVORBIS_LIBRARIES ${OGGVORBIS_LIBRARIES} ${VORBISENC_LIBRARY})
set(_CMAKE_REQUIRED_LIBRARIES_TMP ${CMAKE_REQUIRED_LIBRARIES})
set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} ${OGGVORBIS_LIBRARIES})
check_function_exists(vorbis_bitrate_addblock HAVE_LIBVORBISENC2)
set(CMAKE_REQUIRED_LIBRARIES ${_CMAKE_REQUIRED_LIBRARIES_TMP})
endif(VORBISENC_LIBRARY)
if(HAVE_LIBVORBISENC2)
set(OGGVORBIS_VERSION 2)
else(HAVE_LIBVORBISENC2)
set(OGGVORBIS_VERSION 1)
endif(HAVE_LIBVORBISENC2)
else(VORBIS_INCLUDE_DIR AND VORBIS_LIBRARY AND VORBISFILE_LIBRARY)
set(OGGVORBIS_VERSION)
set(OGGVORBIS_FOUND FALSE)
endif(VORBIS_INCLUDE_DIR AND VORBIS_LIBRARY AND VORBISFILE_LIBRARY)
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")
endif(OggVorbis_FIND_REQUIRED)
if(NOT OggVorbis_FIND_QUITELY)
message(STATUS "Could NOT find OggVorbis libraries")
endif(NOT OggVorbis_FIND_QUITELY)
endif(OGGVORBIS_FOUND)
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