Created attachment 898245 [details] build log for sys-libs/llvm-libunwind-18.1.8 Hello, not sure what's happening here but it is failing for build when all the other related llvm related packages have no problem.
I have tried with clang and with gcc and seem to get the same result every time.
emerge --info? Giving me the impression you are using sys-libs/libcxx (USE=default-libcxx on sys-devel/clang-common) but disabled USE=abi_x86_32 on libcxx itself despite being default. If this was a llvm profile, USE=abi_x86_32 would be forced so I assume you're using clang on a non-llvm profile and maybe have enabled default-libcxx without knowing what it's for (really shouldn't touch that one unless know what you're doing, it'll break a lot of things).
In other words, if you have manually enabled default-libcxx on clang-common on a non-llvm profile, remove that rather than enable abi_x86_32.
Okay, thank you, I'll try that!
Same problem here. I had tried: USE"-clang" emerge -1 sys-libs/llvm-libunwind ABI_X86="64" emerge -1 sys-libs/llvm-libunwind But all result in the same error: x86_64-pc-linux-gnu-gcc: error: unrecognized command-line option ‘-nostdlib++’
