SCons build error with LLVM 9.
llvm-config: unknown component name: x86asmprinter
Yes this component apparently disappeared.
By the looks of it a lot of the code got moved into MCTargetDesc, but I'm not sure yet if it actually needs another lib added instead or if it can just be removed.
Fixed by 84f3f1cf00fec036c9f503ce46e8bbcc3f9b4ae9.