Created attachment 214893 [details]
Add aarch64 to the file just like upstream did. It could probably fix build there too.
Ok, if you use upstream's solution instead.
A commit references this bug:
Date: Sat May 30 23:02:17 UTC 2020
New revision: 537108
security/afl++: fix build on non-amd64
powerpc64 and aarch64 needs it too. mips64 probably as well.
Approved by: tobik (maintainer)