execute_process(COMMAND ${RPMBUILD_EXECUTABLE} -E %{?dist} OUTPUT_VARIABLE DIST_TAG ERROR_QUIET OUTPUT_STRIP_TRAILING_WHITESPACE) set(whitespaces_ "[\t\n\r ]*") # since we have no control over dist tag value we should try to escape # the content for use as a regular expression string(REPLACE "+" "\\+" DIST_TAG "${DIST_TAG}") string(REPLACE "." "\\." DIST_TAG "${DIST_TAG}") getPackageInfo("${FOUND_FILE_1}" "FILE_INFO_") if(NOT FILE_INFO_ MATCHES ".*Release${whitespaces_}:${whitespaces_}1${DIST_TAG}") message(FATAL_ERROR "Unexpected Release in '${FOUND_FILE_1}'; file info: '${FILE_INFO_}'") endif()