This macro will tell whether logDiagnosticMessageWithDomain and _WKDiagnosticLoggingDomain are defined or not. So checking macro will allow building the webkit clients with or without r275103.
Created attachment 424959 [details]
Comment on attachment 424959 [details]
View in context: https://bugs.webkit.org/attachment.cgi?id=424959&action=review
> +#define HAS_DIAGNOSTIC_LOGGING_DOMAIN
I think it's common practice to wrap these kinds of `#define`s in `#ifndef/#endif` (though I admittedly can't find many existing examples in WebKit to use as reference :/)
Committed r275404: <https://commits.webkit.org/r275404>
All reviewed patches have been landed. Closing bug and clearing flags on attachment 424959 [details].