IF("${PACKAGE_VERSION}" STREQUAL "") MESSAGE(FATAL_ERROR "PACKAGE_VERSION wasn't specified") ENDIF("${PACKAGE_VERSION}" STREQUAL "") IF("${INPUT_FILE}" STREQUAL "") MESSAGE(FATAL_ERROR "INPUT_FILE wasn't specified") ENDIF("${INPUT_FILE}" STREQUAL "") IF("${OUTPUT_FILE}" STREQUAL "") MESSAGE(FATAL_ERROR "OUTPUT_FILE wasn't specified") ENDIF("${OUTPUT_FILE}" STREQUAL "") CONFIGURE_FILE("${INPUT_FILE}" "${OUTPUT_FILE}" @ONLY)