https://blogs.gentoo.org/ago/2020/07/04/gentoo-tinderbox/ Issue: app-crypt/sbsigntools fails to compile. Discovered on: amd64 (internal ref: tinderbox) NOTE: This machine uses a clang/LLVM toolchain. If you think that this issue is strictly related to clang/LLVM please block bug 408963. If you think that this issue isstrictly related to the LLD linker, please block bug 731004.
Created attachment 649652 [details] build.log build log and emerge --info
Created attachment 649654 [details] other.tar.bz2 other logs
From the build log: llvm-objcopy: error: invalid output format: 'efi-app-x86_64'
According to the suspiciously similar linked bug this is because llvm-objcopy doesn't support EFI.