x86_64-pc-linux-musl-ld.lld: error: unable to find library -latomic clang: error: linker command failed with exit code 1 (use -v to see invocation) Reproducible: Always
With bug reports please include emerge --info and the build.log. Looks like upstream has had a history with this. https://github.com/markfasheh/duperemove/issues/186 https://github.com/markfasheh/duperemove/pull/234 https://github.com/markfasheh/duperemove/pull/258 Gentoo can address this by removing -latomic and using the flag-o-matics eclass function append-atomic-flags.
Please provide emerge --info and attach the build log. Then change the status to UNCONFIRMED.
Created attachment 901326 [details] emerge-info
Created attachment 901327 [details] build.log