The tests were failing due the switch to pytest5.
This issue has been addressed upstream in
a500f20866
which is included in v.1.1.0, so bumping the version and
updating the old patch.
Hydra log of the failure:
https://hydra.nixos.org/build/100785460/nixlog/6
Rewrite dlopening stuff in hacky way (due ctypes.util totally brokennes:
it attempt to use /sbin/ldconfig, gcc from PATH and other tricks to
detect sonames, I replaced it with simple table lookup)
Also I add patch to bypass another rounding regression in tests
(this patch submitted upstream as well)
