sys-devel/llvm compiler-clang
sys-libs/libcxx compiler-clang
sys-libs/libcxxabi compiler-clang
sys-libs/compiler-rt compiler-clang
sys-libs/compiler-rt-sanitizers compiler-clang
sys-libs/llvm-libunwind compiler-clang
sys-devel/lld compiler-clang
sys-devel/clang compiler-clang

sys-auth/elogind compiler-gcc
dev-lang/python compiler-gcc
sys-kernel/gentoo-kernel-bin compiler-gcc
dev-libs/libgcrypt compiler-gcc
net-misc/x11-ssh-askpass compiler-gcc