GTK already re-run cmake only if it is necessary: http://trac.webkit.org/changeset/162545 ( bug127073 ) I think the configuration change detection in shouldRemoveCMakeCache() is safe, and it seems it has worked well since half years for GTK. So I propose to use this mechanism for EFL port too. It would make incremantal build faster for developers and buildbots too.
Created attachment 240262 [details] Patch
This change decreased the incremental build time from 36 seconds to 8 seconds on my desktop machine if I didn't touch any files.
Comment on attachment 240262 [details] Patch Clearing flags on attachment: 240262 Committed r175327: <http://trac.webkit.org/changeset/175327>
All reviewed patches have been landed. Closing bug.