Libretro broken

trying to run libretro games fails for me for all emulators:

with runtime:

/home/kyra/.local/share/lutris/runners/retroarch/retroarch: symbol lookup error: /usr/lib/libXv.so.1: undefined symbol: _XEatDataWords

without:

/home/kyra/.local/share/lutris/runners/retroarch/retroarch: error while loading shared libraries: libCg.so: cannot open shared object file: No such file or directory

I already tried messing with LD_LIBRARY_PATH to see if that somehow helps, but that doesn’t work at all, see also: https://github.com/lutris/lutris/issues/781