Created attachment 215233 [details]
You are using an unsupported version of LLVM!
Currently only 7 is supported. System LLVM version: 6.0.1
We will try though...
A commit references this bug:
Date: Thu Jun 4 19:31:42 UTC 2020
New revision: 537934
lang/ghc: Depend on newer LLVM 7.0, for which upstream declares support.
Submitted by: mikael
Yep, overlooked that. Thanks!