[bug#71022] [PATCH v2] configure.ac: Set default value for the 'prefix' variable.

[Ludovic Courtès]

Maxim Cournoyer <maxim.cournoyer@gmail.com> skribis:

> The Guix standard configuration uses a localstatedir of /var and a sysconfdir
> of /etc.  To ease things for everyone, make the default values match that
> standard expected configuration.  See
> <https://lists.gnu.org/archive/html/guix-devel/2024-05/msg00003.html> for a
> related discussion.
>
> * configure.ac: Default $prefix to '' unless already set.
> * doc/contributing.texi (Building from Git): Streamline doc.
> * doc/guix-cookbook.texi (Guix environment via direnv): Likewise.
>
> Change-Id: I23cd12b58a842d246fbc9fdc740311c573eb0212

LGTM! :-)