[Nix-dev] Hardcoding /var/run/current-system in nixpkgs

[Arie Middelkoop]

> Nevertheless, I prefer first to have the use case than working on a solution,
> because we may come up with many solutions that don't solve any use case
> problem for anyone.

I encountered perhaps such a use case yesterday:
the consolekit package contained scripts that runs either /sbin/shutdown 
or /usr/sbin/shutdown (hardcoded). For NixOS, I could change this path 
to the appropriate program in the upstart package. However, if you use 
it outside NixOS, this may be a problem or at least a superfluous 
dependency. So, I just added an additional case for 
/var/run/current-system to those scripts.

Arie