The first error is: llvm/lib/Support/Unix/Signals.inc:565:13: error: 'backtrace' was not declared in this scope; did you mean 'StackTrace'? Reproducible: Always
Created attachment 799231 [details] build.log.xz
Created attachment 799233 [details] emerge --info
(In reply to Felix Janda from comment #0) > The first error is: > > llvm/lib/Support/Unix/Signals.inc:565:13: error: 'backtrace' was not > declared in this scope; did you mean 'StackTrace'? > > Reproducible: Always The question becomes why is configure finding a backtrace header on your system. I have not been able to duplicate on x86_64, arm64, and arm. Compile is successful as configure should not be defining backtrace support exist for musl users.
This is from sys-libs/libbacktrace
*** This bug has been marked as a duplicate of bug 838979 ***