1. Run `libraries/osx/build-osx-libs.sh --force-rebuild` on a macOS system without pkg-config (or unset PKG_CONFIG or remove it from path temporarily)
%%%NOTE: it's possible to rebuild only the affected libs to save time:%%%
```
rm libraries/osx/{gloox,gmp,gnutls,nettle}/.already-built
libraries/osx/build-osx-libs.sh
```
2. Build should finish successfully
3. Run game and connect to multiplayer lobby with TLS enabled
4. Should connect to lobby and function as expected (chat, join/host games, etc)