bug#34630: slock: unable to disable OOM killer. Make sure to suid or sgid slock.

[Carlo Zancanaro]

Hey Matthew,

I have successfully used slock on a Guix system, but I haven't 
tried using the Guix slock on a foreign distribution. I would 
expect it to not work, and the error message gives us an idea why:

> When using the guix installed slock, it doesn't lock the screen, 
> and errors with the following error: "slock: unable to disable 
> OOM killer. Make sure to suid or sgid slock."

None of the programs in the Guix store (ie. /gnu/store) will have 
setuid or setgid set. On a Guix system you can install a slock 
screen-locker-service, which will provide a setuid binary for 
slock (via the setuid-program-service). This is done automatically 
as part of the default %desktop-services. I don't know of a way to 
do this on a foreign distribution.

Carlo