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