Revert "Disable builtins by default, except llvm/clang"
Revert "Disable builtins by default, except llvm/clang"

This reverts commit fedad08aeb47d52e2428de9ecd365a2321ed6490.

karies/root,karies/root,olifre/root,karies/root,root-mirror/root,karies/root,root-mirror/root,karies/root,root-mirror/root,root-mirror/root,karies/root,root-mirror/root,root-mirror/root,root-mirror/root,karies/root,olifre/root,root-mirror/root,olifre/root,karies/root,karies/root,olifre/root,karies/root,olifre/root,olifre/root,olifre/root,olifre/root,olifre/root,olifre/root,karies/root,root-mirror/root,root-mirror/root,root-mirror/root,olifre/root