enable_language(${LANGUAGE}) include(WarningAsErrorOptions.cmake) get_warning_options(warning_options ${LANGUAGE}) if (DEFINED warning_options) add_executable(WerrorOn warn.${EXTENSION}) target_compile_options(WerrorOn PUBLIC "${warning_options}") set_target_properties(WerrorOn PROPERTIES COMPILE_WARNING_AS_ERROR ON) else() # if no werror option is set for the environment, use err so that build fails as expected add_executable(WerrorOn err.${EXTENSION}) endif()