https://github.com/ivmai/bdwgc/
https://github.com/ivmai/bdwgc/releases/download/v8.2.12/gc-8.2.12.tar.gz
https://github.com/ivmai/libatomic_ops/
https://github.com/ivmai/libatomic_ops/releases/download/v7.10.0/libatomic_ops-7.10.0.tar.gz