bug#22677: guix lint fails with -dc switch missing

[Ricardo Wurmus]

Pjotr Prins <address@hidden> writes:

> When I run lint on a recent ceckout
>
>   ./pre-inst-env guix lint
>
> or
>
>   ./pre-inst-env guix lint python
>
> I get
>
>   filtered-port: failed to execute ' -dc ': No such file or directory
>

This looks like it is a result of an undefined %bzip2, %xz, and/or %gzip
value.  These values are used by utils.scm to assemble a command.  They
are defined in config.scm, which is created at configure/build time.

Do you have config.scm in the root directory of the repository?  Did you
run ./configure?

~~ Ricardo