linker cannot find -linput on NixOS

[ada4a]

I realize this sounds similar to #59, but I think the problem is slightly different: on NixOS, the reason the library can't be found is that it isn't present by default at all.

In many other C wrapper crates, the error about the missing library (like libudev and libxkbcommon) is emitted by pkg-config, which is at least somewhat more legible -- would it be possible to do something similar here as well?

Thanks in advance:)