[bug#38408] [PATCH v9 3/8] Added Guile-Semver as a dependency to guix

[Martin Becze]

I'm looking at guile-charting now, and i don't understand how it is 
being used as a soft dependency. in guix/scripts/size.scm line 195 it is 
getting used  with "(module-autoload!"... is that it?

On 2/17/20 9:36 AM, Ludovic Courtès wrote:
> Hi,
>
> Efraim Flashner <address@hidden> skribis:
>
> >  From 578d6f023c706df999c1b1b1bb23c9771b279857 Mon Sep 17 00:00:00 2001
> > From: Martin Becze <address@hidden>
> > Date: Tue, 4 Feb 2020 07:18:20 -0500
> > Subject: [PATCH 3/8] Added Guile-Semver as a dependency to guix
> >
> > * configure.ac: added check for guile-semver
> > * gnu/packages/package-management.scm (guix): added guile-semver as dep
>
> [...]
>
> > +dnl Check for Guile-Semver
> > +GUILE_MODULE_AVAILABLE([have_guile_semver], [(semver)])
> > +if test "x$have_guile_semver" != "xyes"; then
> > +  AC_MSG_ERROR([Guile-Semver is missing; please install it.])
> > +fi
>
> I think a hard dependency like this is too much.
>
> I would very much prefer to deal with it similar to how we deal with
> Guile-Newt or Guile-Charting: a soft dependency that’s entirely
> optional.
>
> But I guess that also depends on what Guile-Semver is used for.
> I just posted a question on this topic in that thread.  :-)
>
> Thanks for reviving this patch series!
>
> Ludo’.