i can try but i don't compile llvm by hand i use lcarlier's repo but i'll try to see what can i do, maybe he has some old llvm snapshots still in the repo that i can compare. if not i'll try to modify the pkgbuild to use github repo instead since i'm allergic to svn. i guess gimme a couple of days to check :) any tip to tell mesa to use a custom llvm path? i would like to avoid trashing my llvm install if possible