Engine: + Split PlaySound into PlaySound and LoopSound + Added overloaded versions of PlaySound/LoopSound that won't require voicepack parameter + LoopSound now allows multiple copies of the same sound to play looped and returns the channel used for playback (to stop them later) + StopSound now allows either a specific sound (single playback) or channel (single playback as well as looped playback) to be stopped + SoundChannel attribute for Gears to be used when looping sounds

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FIND_PATH(GMP_INCLUDE_DIR gmp.h)

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FIND_LIBRARY(GMP_LIBRARY NAMES GMP gmp)

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IF (GMP_INCLUDE_DIR AND GMP_LIBRARY)

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   SET(GMP_FOUND TRUE)

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   ENDIF (GMP_INCLUDE_DIR AND GMP_LIBRARY)

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   IF (GMP_FOUND)

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      IF (NOT GMP_FIND_QUIETLY)

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            MESSAGE(STATUS "Found GMP: ${GMP_LIBRARY}")

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      ENDIF (NOT GMP_FIND_QUIETLY)

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   ELSE (GMP_FOUND)

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   IF (GMP_FIND_REQUIRED)

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      MESSAGE(FATAL_ERROR "Could not find GMP")

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   ENDIF (GMP_FIND_REQUIRED)

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ENDIF (GMP_FOUND)