Created attachment 209194 [details] patch There are some Clang-on-PPC-specific issues. Clang doesn't have ppu_intrinsics.h. __mulhdu and __mulhwu are required.
A commit references this bug: Author: pkubaj Date: Sun Nov 17 19:01:58 UTC 2019 New revision: 517837 URL: https://svnweb.freebsd.org/changeset/ports/517837 Log: astro/oskar: fix build on powerpc* with clang There are some Clang-on-PPC-specific issues. Clang doesn't have ppu_intrinsics.h. mulhdu and mulhwu are required. PR: 242016 Approved by: yuri (maintainer), linimon (mentor) Differential Revision: https://reviews.freebsd.org/D22424 Changes: head/astro/oskar/files/patch-extern_Random123_features_gccfeatures.h