MythTV
current version 31.0
desired version 32.0

Note to maintainer
@https://github.com/titanous
I tried installing Mythtv 31.0 in the latest version of NixOS and the following error appeared.
collect2: error: ld returned 1 exit status
> make[2]: *** [Makefile:205: mythavtest] Error 1
> make[2]: Leaving directory '/build/source/mythtv/programs/mythavtest'
> make[1]: *** [Makefile:67: sub-mythavtest-make_first] Error 2
> make[1]: Leaving directory '/build/source/mythtv/programs'
> make: *** [Makefile:66: programs] Error 2
For full logs, run 'nix log /nix/store/i7hayl96078skrs46yksjqxjsh31cmfv-mythtv-31.0.drv'.

Reading the log displayed error: experimental Nix feature 'nix-command' is disabled; use '--extra-experimental-features nix-command' to override