In current GStreamer git master gstversion.h was moved to a different directory but our CMake build looks for it in the first include directory reported by pkg-config.
I think there's a great deal of cruft in FindGStreamer.cmake. It does weird version checks and it's unable to handle a library with multiple include directories...
Must have been a mix of gst versions in my jhbuild sysroot...
Now it appears again, perhaps ccache tricked me last time...
Created attachment 242147 [details]
Ossy, would you like to review this patch?
Comment on attachment 242147 [details]
looks good, r=me.
Committed r176565: <http://trac.webkit.org/changeset/176565>