include_directories (${SUPERTUX_SOURCE_DIR}/src/)
include_directories (${SUPERTUX_SOURCE_DIR}/external/squirrel/include/)
include_directories (${SUPERTUX_SOURCE_DIR}/external/)
include_directories (${SUPERTUX_SOURCE_DIR}/src/)
include_directories (${SUPERTUX_SOURCE_DIR}/external/squirrel/include/)
include_directories (${SUPERTUX_SOURCE_DIR}/external/)