Currently sys-devel/llvm-roc is a separate build and it really should be slotted sys-devel/llvm:roc. This will then enable the llvm.eclass to be used.
(In reply to Luke A. Guest from comment #0) > Currently sys-devel/llvm-roc is a separate build and it really should be > slotted sys-devel/llvm:roc. This will then enable the llvm.eclass to be used. llvm-roc is a separate repository from llvm upstream and ultimately llvm-roc patches will be merged upstream. For the moment, we will keep 2 ebuilds.