mail-client/thunderbird clang system-jpeg system-libvpx system-harfbuzz system-libevent system-sqlite system-icu
www-client/firefox clang lto system-jpeg system-libvpx system-harfbuzz system-libevent system-sqlite system-icu

dev-db/sqlite secure-delete
dev-lang/python sqlite
media-libs/libpng apng
media-libs/libvpx postproc
sys-devel/llvm gold