Danny Milosavljevic <dannym@scratchpost.org> writes:

> I'm trying to package minicom and there I get an error message 
>
>   checking for com line lock directory... configure: error: No suitable lock directory
>
> ... which was checking for a (common) directory to put a file in (as a marker) when a serial device is in use (and removing the file to free the serial device).  This is supposed to prevent multiple different programs accidentally using the same serial line.
>
> Where and how should this be done in Guix?

That sounds like a directory which should exist in the localstatedir
(info '(standards) Directory Variables').  I haven't looked closely at
the package, but your package definition makes it look like it's using a
GNU build system, so hopefully it provides a way to configure the
value used for the localstatedir.

-- 
Chris