set(INC_DIRECTORIES ${INC_DIRECTORIES} ${CMAKE_CURRENT_SOURCE_DIR} PARENT_SCOPE ) set(HEADER_FILES ${HEADER_FILES} ${CMAKE_CURRENT_SOURCE_DIR}/XKeyboard.h ${CMAKE_CURRENT_SOURCE_DIR}/X11Exception.h PARENT_SCOPE ) set(SOURCE_FILES ${SOURCE_FILES} ${CMAKE_CURRENT_SOURCE_DIR}/XKeyboard.cpp PARENT_SCOPE )