# - 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. 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} )ELSE (ALLEGRO_INCLUDE_DIR AND ALLEGRO_LIBRARY)    SET(ALLEGRO_FOUND FALSE)    SET( ALLEGRO_LIBRARIES )ENDIF (ALLEGRO_INCLUDE_DIR AND ALLEGRO_LIBRARY) IF (ALLEGRO_FOUND)    MESSAGE(STATUS "Found Allegro: ${ALLEGRO_LIBRARY}")ELSE (ALLEGRO_FOUND)    MESSAGE(STATUS "Looked for Allegro libraries named ${ALLEGRO_NAMES}.")    MESSAGE(FATAL_ERROR "Could NOT find Allegro library")ENDIF (ALLEGRO_FOUND) MARK_AS_ADVANCED(ALLEGRO_LIBRARYALLEGRO_INCLUDE_DIR)