https://bugs.freedesktop.org/show_bug.cgi?id=77305
--- Comment #5 from Simone Scanzoni nonno.cicala@tiscali.it --- (In reply to comment #4)
I think 9d36a8d4d27230dd91d4c4002a781edeec22d044 broke it again if you do not build with R300 as well.
It works fine here when I build with R300.
The attached patch fixes the issue when R300 is not built.
You are probably right. My wording wasn't exact, the patch I attached fixes the build failure when building only r600 or radeonsi, or both.