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# - Locate OpenAL
# This module defines
# OPENAL_LIBRARY
# OPENAL_FOUND, if false, do not try to link to OpenAL
# OPENAL_INCLUDE_DIR, where to find the headers
#
# $OPENALDIR is an environment variable that would
# correspond to the ./configure --prefix=$OPENALDIR
# used in building OpenAL.
#
# Created by Eric Wing. This was influenced by the FindSDL.cmake module.
# On OSX, this will prefer the Framework version (if found) over others.
# People will have to manually change the cache values of
# OPENAL_LIBRARY to override this selection.
# Tiger will include OpenAL as part of the System.
# But for now, we have to look around.
# Other (Unix) systems should be able to utilize the non-framework paths.
FIND_PATH(OPENAL_INCLUDE_DIR NAMES al.h
PATH_SUFFIXES AL OpenAL
PATHS
$ENV{OPENALDIR}/include
~/Library/Frameworks/OpenAL.framework/Headers
/Library/Frameworks/OpenAL.framework/Headers
/System/Library/Frameworks/OpenAL.framework/Headers # Tiger
)
# I'm not sure if I should do a special casing for Apple. It is
# unlikely that other Unix systems will find the framework path.
# But if they do ([Next|Open|GNU]Step?),
# do they want the -framework option also?
IF(${OPENAL_INCLUDE_DIR} MATCHES ".framework")
STRING(REGEX REPLACE "(.*)/.*\\.framework/.*" "\\1" OPENAL_FRAMEWORK_PATH_TMP ${OPENAL_INCLUDE_DIR})
IF("${OPENAL_FRAMEWORK_PATH_TMP}" STREQUAL "/Library/Frameworks"
OR "${OPENAL_FRAMEWORK_PATH_TMP}" STREQUAL "/System/Library/Frameworks"
)
# String is in default search path, don't need to use -F
SET (OPENAL_LIBRARY "-framework OpenAL" CACHE STRING "OpenAL framework for OSX")
ELSE("${OPENAL_FRAMEWORK_PATH_TMP}" STREQUAL "/Library/Frameworks"
OR "${OPENAL_FRAMEWORK_PATH_TMP}" STREQUAL "/System/Library/Frameworks"
)
# String is not /Library/Frameworks, need to use -F
SET(OPENAL_LIBRARY "-F${OPENAL_FRAMEWORK_PATH_TMP} -framework OpenAL" CACHE STRING "OpenAL framework for OSX")
ENDIF("${OPENAL_FRAMEWORK_PATH_TMP}" STREQUAL "/Library/Frameworks"
OR "${OPENAL_FRAMEWORK_PATH_TMP}" STREQUAL "/System/Library/Frameworks"
)
# Clear the temp variable so nobody can see it
SET(OPENAL_FRAMEWORK_PATH_TMP "" CACHE INTERNAL "")
ELSE(${OPENAL_INCLUDE_DIR} MATCHES ".framework")
FIND_LIBRARY(OPENAL_LIBRARY
NAMES openal al OpenAL32
PATHS
$ENV{OPENALDIR}/lib
$ENV{OPENALDIR}/libs
)
ENDIF(${OPENAL_INCLUDE_DIR} MATCHES ".framework")
# handle the QUIETLY and REQUIRED arguments and set OPENAL_FOUND to TRUE if
# all listed variables are TRUE
INCLUDE(FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(OpenAL OPENAL_LIBRARY OPENAL_INCLUDE_DIR)
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