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@@ -0,0 +1,402 @@
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+# Locates the SDL_sound library
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+
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+# This module depends on SDL being found and
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+# must be called AFTER FindSDL.cmake is called.
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+
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+# This module defines
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+# SDL_SOUND_INCLUDE_DIR, where to find SDL_sound.h
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+# SDL_SOUND_FOUND, if false, do not try to link to SDL
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+# SDL_SOUND_LIBRARIES, this contains the list of libraries that you need to link against
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+#
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+# This module also defines (but you shouldn't need to use directly)
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+# SDL_SOUND_LIBRARY, the name of just the SDL_sound library you would link against.
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+# And might define the following as needed
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+# MIKMOD_LIBRARY
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+# MODPLUG_LIBRARY
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+# OGG_LIBRARY
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+# VORBIS_LIBRARY
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+# SMPEG_LIBRARY
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+# FLAC_LIBRARY
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+# SPEEX_LIBRARY
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+#
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+# Typically, you should not use these variables directly, and you should use
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+# SDL_SOUND_LIBRARIES which contains SDL_SOUND_LIBRARY and the other audio libraries
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+# (if needed) to successfully compile on your system .
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+#
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+# Created by Eric Wing.
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+# This module is a bit more complicated than the other FindSDL* family modules.
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+# The reason is that SDL_sound can be compiled in a large variety of different ways
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+# which are independent of platform. SDL_sound may dynamically link against other 3rd
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+# party libraries to get additional codec support, such as Ogg Vorbis, SMPEG, ModPlug,
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+# MikMod, FLAC, Speex, and potentially others. Some platforms or compilers seem to
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+# require that dependent libraries of libraries you use must also be explicitly
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+# linked against in order to successfully compile. SDL_sound does not currently
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+# have any system in place to know how it was compiled.
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+# So this CMake module does the hard work in trying to discover which 3rd party
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+# libraries are required for building.
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+# This module uses a brute force approach to create a test program that uses SDL_sound,
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+# and then tries to build it. If the build fails, it parses the error output for
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+# known symbol names to figure out which libraries are needed.
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+#
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+# Responds to the $SDLDIR and $SDLSOUNDDIR environmental variable that would
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+# correspond to the ./configure --prefix=$SDLDIR used in building SDL.
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+#
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+# On OSX, this will prefer the Framework version (if found) over others.
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+# People will have to manually change the cache values of
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+# SDL_LIBRARY to override this selection.
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+#
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+
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+# Find SDL_sound.h
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+FIND_PATH(SDL_SOUND_INCLUDE_DIR SDL_sound.h
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+ ~/Library/Frameworks/SDL_sound.framework/Headers
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+ /Library/Frameworks/SDL_sound.framework/Headers
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+ $ENV{SDLDIR}/include
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+ $ENV{SDLSOUNDDIR}/include
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+ /usr/include/SDL
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+ /usr/include/SDL12
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+ /usr/include/SDL11
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+ /usr/include
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+ /usr/local/include/SDL
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+ /usr/local/include/SDL12
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+ /usr/local/include/SDL11
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+ /usr/local/include
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+ /sw/include
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+ )
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+# Find the SDL_sound library
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+IF(${SDL_SOUND_INCLUDE_DIR} MATCHES ".framework")
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+ SET (SDL_SOUND_LIBRARY "-framework SDL_sound" CACHE STRING "SDL_sound framework for OSX")
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+ELSE(${SDL_SOUND_INCLUDE_DIR} MATCHES ".framework")
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+ FIND_LIBRARY(SDL_SOUND_LIBRARY
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+ NAMES SDL_sound
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+ PATHS
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+ $ENV{SDLDIR}/lib
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+ $ENV{SDLSOUNDDIR}/lib
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+ /usr/lib
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+ /usr/local/lib
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+ /sw/lib
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+ )
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+ENDIF(${SDL_SOUND_INCLUDE_DIR} MATCHES ".framework")
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+
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+SET(SDL_SOUND_FOUND "NO")
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+IF(SDL_FOUND AND SDL_SOUND_INCLUDE_DIR AND SDL_SOUND_LIBRARY)
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+
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+ # CMake is giving me problems using TRY_COMPILE with the CMAKE_FLAGS
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+ # for the :STRING syntax if I have multiple values contained in a
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+ # single variable. This is a problem for the SDL_LIBRARY variable
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+ # because it does just that. When I feed this variable to the command,
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+ # only the first value gets the appropriate modifier (e.g. -I) and
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+ # the rest get dropped.
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+ # To get multiple single variables to work, I must separate them with a "\;"
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+ # I could go back and modify the FindSDL.cmake module, but that's kind of painful.
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+ # The solution would be to try something like:
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+ # SET(SDL_TRY_COMPILE_LIBRARY_LIST "${SDL_TRY_COMPILE_LIBRARY_LIST}\;${CMAKE_THREAD_LIBS_INIT}")
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+ # Instead, it was suggested on the mailing list to write a temporary CMakeLists.txt
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+ # with a temporary test project and invoke that with TRY_COMPILE.
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+ # See message thread "Figuring out dependencies for a library in order to build"
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+ # 2005-07-16
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+ # TRY_COMPILE(
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+ # MY_RESULT
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+ # ${CMAKE_BINARY_DIR}
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+ # ${PROJECT_SOURCE_DIR}/DetermineSoundLibs.c
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+ # CMAKE_FLAGS
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+ # -DINCLUDE_DIRECTORIES:STRING=${SDL_INCLUDE_DIR}\;${SDL_SOUND_INCLUDE_DIR}
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+ # -DLINK_LIBRARIES:STRING=${SDL_SOUND_LIBRARY}\;${SDL_LIBRARY}
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+ # OUTPUT_VARIABLE MY_OUTPUT
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+ # )
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+
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+ # To minimize external dependencies, create a sdlsound test program
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+ # which will be used to figure out if additional link dependencies are
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+ # required for the link phase.
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+ FILE(WRITE ${PROJECT_BINARY_DIR}/CMakeTmp/DetermineSoundLibs.c
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+ "#include \"SDL_sound.h\"
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+ #include \"SDL.h\"
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+ int main(int argc, char* argv[])
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+ {
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+ Sound_AudioInfo desired;
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+ Sound_Sample* sample;
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+
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+ SDL_Init(0);
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+ Sound_Init();
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+
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+ /* This doesn't actually have to work, but Init() is a no-op
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+ * for some of the decoders, so this should force more symbols
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+ * to be pulled in.
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+ */
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+ sample = Sound_NewSampleFromFile(argv[1], &desired, 4096);
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+
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+ Sound_Quit();
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+ SDL_Quit();
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+ return 0;
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+ }"
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+ )
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+
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+
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+ # Write the CMakeLists.txt and test project
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+ # Weird, this is still sketchy. If I don't quote the variables
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+ # in the TARGET_LINK_LIBRARIES, I seem to loose everything
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+ # in the SDL_LIBRARY string after the "-framework".
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+ # But if I quote the stuff in INCLUDE_DIRECTORIES, it doesn't work.
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+ FILE(WRITE ${PROJECT_BINARY_DIR}/CMakeTmp/CMakeLists.txt
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+ "PROJECT(DetermineSoundLibs)
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+ INCLUDE_DIRECTORIES(${SDL_INCLUDE_DIR} ${SDL_SOUND_INCLUDE_DIR})
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+ ADD_EXECUTABLE(DetermineSoundLibs DetermineSoundLibs.c)
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+ TARGET_LINK_LIBRARIES(DetermineSoundLibs \"${SDL_SOUND_LIBRARY} ${SDL_LIBRARY}\")"
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+ )
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+
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+ TRY_COMPILE(
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+ MY_RESULT
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+ ${PROJECT_BINARY_DIR}/CMakeTmp
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+ ${PROJECT_BINARY_DIR}/CMakeTmp
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+ DetermineSoundLibs
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+ OUTPUT_VARIABLE MY_OUTPUT
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+ )
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+
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+ #MESSAGE("${MY_RESULT}")
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+ #MESSAGE(${MY_OUTPUT})
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+
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+ IF(NOT MY_RESULT)
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+
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+ # I expect that MPGLIB, VOC, WAV, AIFF, and SHN are compiled in statically.
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+ # I think Timidity is also compiled in statically.
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+ # I've never had to explcitly link against Quicktime, so I'll skip that for now.
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+
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+ SET(SDL_SOUND_LIBRARIES_TMP ${SDL_SOUND_LIBRARY})
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+
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+ # Find MikMod
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+ IF("${MY_OUTPUT}" MATCHES "MikMod_")
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+ FIND_FILE(TEMP_SDLSOUND_FIND_MIKMOD_FRAMEWORK
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+ libmikmod-coreaudio
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+ ~/Library/Frameworks/libmikmod-coreaudio.framework
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+ /Library/Frameworks/libmikmod-coreaudio.framework
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+ )
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+ IF(TEMP_SDLSOUND_FIND_MIKMOD_FRAMEWORK)
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+ SET(MIKMOD_LIBRARY "-framework libmikmod-coreaudio" CACHE STRING "MikMod framework for OSX")
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+ ELSE(TEMP_SDLSOUND_FIND_MIKMOD_FRAMEWORK)
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+ FIND_LIBRARY(MIKMOD_LIBRARY
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+ NAMES mikmod
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+ PATHS
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+ $ENV{MIKMODDIR}/lib
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+ $ENV{SDLDIR}/lib
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+ $ENV{SDLSOUNDDIR}/lib
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+ /usr/lib
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+ /usr/local/lib
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+ /sw/lib
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+ )
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+ ENDIF(TEMP_SDLSOUND_FIND_MIKMOD_FRAMEWORK)
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+ # Clear the temp variable so nobody can see it
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+ SET(TEMP_SDLSOUND_FIND_MIKMOD_FRAMEWORK "" CACHE INTERNAL "")
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+ IF(MIKMOD_LIBRARY)
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+ SET(SDL_SOUND_LIBRARIES_TMP ${SDL_SOUND_LIBRARIES_TMP} ${MIKMOD_LIBRARY})
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+ ENDIF(MIKMOD_LIBRARY)
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+ ENDIF("${MY_OUTPUT}" MATCHES "MikMod_")
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+
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+ # Find ModPlug
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+ IF("${MY_OUTPUT}" MATCHES "MODPLUG_")
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+ FIND_FILE(TEMP_SDLSOUND_FIND_MODPLUG_FRAMEWORK
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+ libmikmod-coreaudio
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+ ~/Library/Frameworks/modplug.framework
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+ /Library/Frameworks/modplug.framework
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+ )
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+ IF(TEMP_SDLSOUND_FIND_MODPLUG_FRAMEWORK)
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+ SET(MIKMOD_LIBRARY "-framework modplug" CACHE STRING "MODPLUG framework for OSX")
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+ ELSE(TEMP_SDLSOUND_FIND_MODPLUG_FRAMEWORK)
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+ FIND_LIBRARY(MODPLUG_LIBRARY
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+ NAMES modplug
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+ PATHS
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+ $ENV{MODPLUGDIR}/lib
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+ $ENV{SDLDIR}/lib
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+ $ENV{SDLSOUNDDIR}/lib
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+ /usr/lib
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+ /usr/local/lib
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+ /sw/lib
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+ )
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+ ENDIF(TEMP_SDLSOUND_FIND_MODPLUG_FRAMEWORK)
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+ # Clear the temp variable so nobody can see it
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+ SET(TEMP_SDLSOUND_FIND_MODPLUG_FRAMEWORK "" CACHE INTERNAL "")
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+ IF(MODPLUG_LIBRARY)
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+ SET(SDL_SOUND_LIBRARIES_TMP ${SDL_SOUND_LIBRARIES_TMP} ${MODPLUG_LIBRARY})
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+ ENDIF(MODPLUG_LIBRARY)
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+ ENDIF("${MY_OUTPUT}" MATCHES "MODPLUG_")
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+
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+
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+ # Find Ogg and Vorbis
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+ IF("${MY_OUTPUT}" MATCHES "ov_")
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+ FIND_FILE(TEMP_SDLSOUND_FIND_VORBIS_FRAMEWORK
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+ Vorbis
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+ ~/Library/Frameworks/Vorbis.framework
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+ /Library/Frameworks/Vorbis.framework
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+ )
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+ IF(TEMP_SDLSOUND_FIND_VORBIS_FRAMEWORK)
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+ SET(VORBIS_LIBRARY "-framework Vorbis" CACHE STRING "Vorbis framework for OSX")
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+ ELSE(TEMP_SDLSOUND_FIND_VORBIS_FRAMEWORK)
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+ FIND_LIBRARY(VORBIS_LIBRARY
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+ NAMES vorbis Vorbis VORBIS
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+ PATHS
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+ $ENV{OGGDIR}/lib
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+ $ENV{VORBISDIR}/lib
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+ $ENV{SDLDIR}/lib
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+ $ENV{SDLSOUNDDIR}/lib
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+ /usr/lib
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+ /usr/local/lib
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+ /sw/lib
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+ )
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+ ENDIF(TEMP_SDLSOUND_FIND_VORBIS_FRAMEWORK)
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+ # Clear the temp variable so nobody can see it
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+ SET(TEMP_SDLSOUND_FIND_VORBIS_FRAMEWORK "" CACHE INTERNAL "")
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+ IF(VORBIS_LIBRARY)
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+ SET(SDL_SOUND_LIBRARIES_TMP ${SDL_SOUND_LIBRARIES_TMP} ${VORBIS_LIBRARY})
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+ ENDIF(VORBIS_LIBRARY)
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+
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+ FIND_FILE(TEMP_SDLSOUND_FIND_OGG_FRAMEWORK
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+ Ogg
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+ ~/Library/Frameworks/Ogg.framework
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+ /Library/Frameworks/Ogg.framework
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+ )
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+ IF(TEMP_SDLSOUND_FIND_OGG_FRAMEWORK)
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+ SET(OGG_LIBRARY "-framework Ogg" CACHE STRING "Ogg framework for OSX")
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+ ELSE(TEMP_SDLSOUND_FIND_OGG_FRAMEWORK)
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+ FIND_LIBRARY(OGG_LIBRARY
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+ NAMES ogg Ogg OGG
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+ PATHS
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+ $ENV{OGGDIR}/lib
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+ $ENV{VORBISDIR}/lib
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+ $ENV{SDLDIR}/lib
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+ $ENV{SDLSOUNDDIR}/lib
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+ /usr/lib
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+ /usr/local/lib
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+ /sw/lib
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+ )
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+ ENDIF(TEMP_SDLSOUND_FIND_OGG_FRAMEWORK)
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+ # Clear the temp variable so nobody can see it
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+ SET(TEMP_SDLSOUND_FIND_OGG_FRAMEWORK "" CACHE INTERNAL "")
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+ IF(OGG_LIBRARY)
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+ SET(SDL_SOUND_LIBRARIES_TMP ${SDL_SOUND_LIBRARIES_TMP} ${OGG_LIBRARY})
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+ ENDIF(OGG_LIBRARY)
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+ ENDIF("${MY_OUTPUT}" MATCHES "ov_")
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+
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+
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+ # Find SMPEG
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+ IF("${MY_OUTPUT}" MATCHES "SMPEG_")
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+ FIND_FILE(TEMP_SDLSOUND_FIND_SMPEG_FRAMEWORK
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+ SMPEG
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+ ~/Library/Frameworks/smpeg.framework
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+ /Library/Frameworks/smpeg.framework
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+ )
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+ IF(TEMP_SDLSOUND_FIND_SMPEG_FRAMEWORK)
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+ SET(SMPEG_LIBRARY "-framework smpeg" CACHE STRING "SMPEG framework for OSX")
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+ ELSE(TEMP_SDLSOUND_FIND_SMPEG_FRAMEWORK)
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+ FIND_LIBRARY(SMPEG_LIBRARY
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+ NAMES smpeg SMPEG Smpeg SMpeg
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+ PATHS
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+ $ENV{SMPEGDIR}/lib
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+ $ENV{SDLDIR}/lib
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+ $ENV{SDLDIR}/lib
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+ $ENV{SDLSOUNDDIR}/lib
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+ /usr/lib
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+ /usr/local/lib
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+ /sw/lib
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+ )
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+ ENDIF(TEMP_SDLSOUND_FIND_SMPEG_FRAMEWORK)
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+ # Clear the temp variable so nobody can see it
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+ SET(TEMP_SDLSOUND_FIND_SMPEG_FRAMEWORK "" CACHE INTERNAL "")
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+ IF(SMPEG_LIBRARY)
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+ SET(SDL_SOUND_LIBRARIES_TMP ${SDL_SOUND_LIBRARIES_TMP} ${SMPEG_LIBRARY})
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+ ENDIF(SMPEG_LIBRARY)
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+ ENDIF("${MY_OUTPUT}" MATCHES "SMPEG_")
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+
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+
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+ # Find FLAC
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+ IF("${MY_OUTPUT}" MATCHES "FLAC_")
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+ FIND_FILE(TEMP_SDLSOUND_FIND_FLAC_FRAMEWORK
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+ FLAC
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+ ~/Library/Frameworks/FLAC.framework
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+ /Library/Frameworks/FLAC.framework
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+ )
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+ IF(TEMP_SDLSOUND_FIND_FLAC_FRAMEWORK)
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+ SET(FLAC_LIBRARY "-framework FLAC" CACHE STRING "FLAC framework for OSX")
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+ ELSE(TEMP_SDLSOUND_FIND_FLAC_FRAMEWORK)
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+ FIND_LIBRARY(FLAC_LIBRARY
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+ NAMES flac FLAC
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+ PATHS
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+ $ENV{FLACDIR}/lib
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+ $ENV{SDLDIR}/lib
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+ $ENV{SDLSOUNDDIR}/lib
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+ /usr/lib
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+ /usr/local/lib
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+ /sw/lib
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+ )
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+ ENDIF(TEMP_SDLSOUND_FIND_FLAC_FRAMEWORK)
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+ # Clear the temp variable so nobody can see it
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+ SET(TEMP_SDLSOUND_FIND_FLAC_FRAMEWORK "" CACHE INTERNAL "")
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+ IF(FLAC_LIBRARY)
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+ SET(SDL_SOUND_LIBRARIES_TMP ${SDL_SOUND_LIBRARIES_TMP} ${FLAC_LIBRARY})
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+ ENDIF(FLAC_LIBRARY)
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+ ENDIF("${MY_OUTPUT}" MATCHES "FLAC_")
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+
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+
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+ # Hmmm...Speex seems to depend on Ogg. This might be a problem if
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+ # the TRY_COMPILE attempt gets blocked at SPEEX before it can pull
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+ # in the Ogg symbols. I'm not sure if I should duplicate the ogg stuff
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+ # above for here or if two ogg entries will screw up things.
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+ IF("${MY_OUTPUT}" MATCHES "speex_")
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+ FIND_FILE(TEMP_SDLSOUND_FIND_SPEEX_FRAMEWORK
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+ speex
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+ ~/Library/Frameworks/speex.framework
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+ /Library/Frameworks/speex.framework
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+ )
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+ IF(TEMP_SDLSOUND_FIND_SPEEX_FRAMEWORK)
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+ SET(FLAC_LIBRARY "-framework speex" CACHE STRING "SPEEX framework for OSX")
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+ ELSE(TEMP_SDLSOUND_FIND_SPEEX_FRAMEWORK)
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+ FIND_LIBRARY(SPEEX_LIBRARY
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+ NAMES speex SPEEX
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+ PATHS
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+ $ENV{SPEEXDIR}/lib
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+ $ENV{SDLDIR}/lib
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+ $ENV{SDLSOUNDDIR}/lib
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+ /usr/lib
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+ /usr/local/lib
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+ /sw/lib
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+ )
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+ ENDIF(TEMP_SDLSOUND_FIND_SPEEX_FRAMEWORK)
|
|
|
+ # Clear the temp variable so nobody can see it
|
|
|
+ SET(TEMP_SDLSOUND_FIND_SPEEX_FRAMEWORK "" CACHE INTERNAL "")
|
|
|
+ SET(SDL_SOUND_LIBRARIES_TMP ${SDL_SOUND_LIBRARIES_TMP} ${SPEEX_LIBRARY})
|
|
|
+
|
|
|
+ # Find OGG (needed for Speex)
|
|
|
+ FIND_FILE(TEMP_SDLSOUND_FIND_OGG_FRAMEWORK
|
|
|
+ Ogg
|
|
|
+ ~/Library/Frameworks/Ogg.framework
|
|
|
+ /Library/Frameworks/Ogg.framework
|
|
|
+ )
|
|
|
+ IF(TEMP_SDLSOUND_FIND_OGG_FRAMEWORK)
|
|
|
+ SET(OGG_LIBRARY "-framework Ogg" CACHE STRING "Ogg framework for OSX")
|
|
|
+ ELSE(TEMP_SDLSOUND_FIND_OGG_FRAMEWORK)
|
|
|
+ FIND_LIBRARY(OGG_LIBRARY
|
|
|
+ NAMES ogg Ogg OGG
|
|
|
+ PATHS
|
|
|
+ $ENV{OGGDIR}/lib
|
|
|
+ $ENV{VORBISDIR}/lib
|
|
|
+ $ENV{SPEEXDIR}/lib
|
|
|
+ $ENV{SDLDIR}/lib
|
|
|
+ $ENV{SDLSOUNDDIR}/lib
|
|
|
+ /usr/lib
|
|
|
+ /usr/local/lib
|
|
|
+ /sw/lib
|
|
|
+ )
|
|
|
+ ENDIF(TEMP_SDLSOUND_FIND_OGG_FRAMEWORK)
|
|
|
+ # Clear the temp variable so nobody can see it
|
|
|
+ SET(TEMP_SDLSOUND_FIND_OGG_FRAMEWORK "" CACHE INTERNAL "")
|
|
|
+ IF(OGG_LIBRARY)
|
|
|
+ SET(SDL_SOUND_LIBRARIES_TMP ${SDL_SOUND_LIBRARIES_TMP} ${OGG_LIBRARY})
|
|
|
+ ENDIF(OGG_LIBRARY)
|
|
|
+ ENDIF("${MY_OUTPUT}" MATCHES "speex_")
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+ ELSE(NOT MY_RESULT)
|
|
|
+ SET(SDL_SOUND_LIBRARIES ${SDL_SOUND_LIBRARY} CACHE STRING "SDL_sound and dependent libraries")
|
|
|
+ ENDIF(NOT MY_RESULT)
|
|
|
+
|
|
|
+ SET(SDL_SOUND_LIBRARIES ${SDL_SOUND_LIBRARIES_TMP} CACHE STRING "SDL_sound and dependent libraries")
|
|
|
+ SET(SDL_SOUND_FOUND "YES")
|
|
|
+ ENDIF(SDL_FOUND AND SDL_SOUND_INCLUDE_DIR AND SDL_SOUND_LIBRARY)
|
Bill Hoffman