The headers generated by the CMake macros in WebKitMacros.m4 use absolute paths, while generate-forwarding-headers.pl uses paths relative to the Source directory. This means that when the two paths generate headers into the same directory they will be overwritten unnecessarily if the CMake files change.
Created attachment 220189 [details] Patch
Is the EWS green? I don't see the bubbles currently.
Comment on attachment 220189 [details] Patch Ok yes it's green indeed :) the patch looks good as well!
Comment on attachment 220189 [details] Patch Clearing flags on attachment: 220189 Committed r161263: <http://trac.webkit.org/changeset/161263>
All reviewed patches have been landed. Closing bug.