FindALLEGRO.cmake
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FindALLEGRO.cmake
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	# - Find allegro
	# Find the native ALLEGRO includes and library
	#
	# ALLEGRO_INCLUDE_DIR - where to find allegro.h, etc.
	# ALLEGRO_LIBRARIES - List of libraries when using allegro.
	# ALLEGRO_FOUND - True if allegro found.


	IF (ALLEGRO_INCLUDE_DIR)
	# Already in cache, be silent
	SET(ALLEGRO_FIND_QUIETLY TRUE)
	ENDIF (ALLEGRO_INCLUDE_DIR)

	FIND_PATH(ALLEGRO_INCLUDE_DIR allegro.h
	/usr/local/include
	/usr/include
	$ENV{MINGDIR}/include
	)

	if(UNIX AND NOT CYGWIN)
	exec_program(allegro-config ARGS --libs OUTPUT_VARIABLE ALLEGRO_LIBRARY)
	else(UNIX AND NOT CYGWIN)
	SET(ALLEGRO_NAMES alleg alleglib alleg41 alleg42 allegdll)
	FIND_LIBRARY(ALLEGRO_LIBRARY
	NAMES ${ALLEGRO_NAMES}
	PATHS /usr/lib /usr/local/lib $ENV{MINGDIR}/lib)
	endif(UNIX AND NOT CYGWIN)

	IF (ALLEGRO_INCLUDE_DIR AND ALLEGRO_LIBRARY)
	SET(ALLEGRO_FOUND TRUE)
	SET( ALLEGRO_LIBRARIES ${ALLEGRO_LIBRARY} )
	add_definitions(-DUSE_ALLEGRO)
	ELSE (ALLEGRO_INCLUDE_DIR AND ALLEGRO_LIBRARY)
	SET(ALLEGRO_FOUND FALSE)
	SET( ALLEGRO_LIBRARIES )
	ENDIF (ALLEGRO_INCLUDE_DIR AND ALLEGRO_LIBRARY)

	IF (ALLEGRO_FOUND)
	IF (NOT ALLEGRO_FIND_QUIETLY)
	MESSAGE(STATUS "Found Allegro: ${ALLEGRO_LIBRARY}")
	ENDIF (NOT ALLEGRO_FIND_QUIETLY)
	ELSE (ALLEGRO_FOUND)
	IF (ALLEGRO_FIND_REQUIRED)
	MESSAGE(STATUS "Looked for Allegro libraries named ${ALLEGRO_NAMES}.")
	MESSAGE(FATAL_ERROR "Could NOT find Allegro library")
	ENDIF (ALLEGRO_FIND_REQUIRED)
	ENDIF (ALLEGRO_FOUND)

	MARK_AS_ADVANCED(
	ALLEGRO_LIBRARY
	ALLEGRO_INCLUDE_DIR
	)