bug#37740: Deja-dup fails to build on c2734ff80987de8f0bb3e31d4339e5496a9821d2

[P via Bug reports for GNU Guix <bug-guix@gnu.org>]

‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
On Tuesday, October 15, 2019 5:39 PM, P <pronaip@protonmail.com> wrote:

> ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
> On Monday, October 14, 2019 2:53 PM, P via Bug reports for GNU Guix bug-guix@gnu.org wrote:
>
> > ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
> > On Sunday, October 13, 2019 11:05 PM, goodoldpaul@autistici.org wrote:
> >
> > > Deja-dup fails to build on c2734ff80987de8f0bb3e31d4339e5496a9821d2. I
> > > noticed this some "guix pull && guix package -u" ago so I'm not sure
> > > when it was introduced. The log indicates that the build process stops
> > > when trying to run "make -j 8 gtk_update_icon_cache=true". To reproduce
> > > just running
> > > guix pull --commit=c2734ff80987de8f0bb3e31d4339e5496a9821d2 && guix
> > > build deja-dup
> > > should do.
> > > I attach the build log.
> > > Thank you all for your effort both on the technical and human side of
> > > free software (in the last few days I felt like you should receive more
> > > thanks than you did).
> > > Giacomo
> >
> > It looks like these are the actual errors:
> > /tmp/guix-build-deja-dup-34.3.drv-0/deja-dup-34.3/libdeja/ToolPlugin.vala:78.7-78.40: error: Assignment: Cannot convert from `GLib.List<weak GLib.File>' to`GLib.List<GLib.File>'
> >
> >       this._restore_files = value.copy();
> >
> >
> > /tmp/guix-build-deja-dup-34.3.drv-0/deja-dup-34.3/libdeja/CommonUtils.vala:397.65-397.78: error: The name `g_object_unref' does not exist in the context of`DejaDup.set_settings_read_only'
> > g_object_unref);
> > ^^^^^^^^^^^^^^
> > /tmp/guix-build-deja-dup-34.3.drv-0/deja-dup-34.3/libdeja/OperationRestore.vala:36.7-36.40: error: Assignment: Cannot convert from `GLib.List<weak GLib.File>' to`GLib.List<GLib.File>'
> >
> >       this._restore_files = value.copy();
> >       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> >
> >
> > It probably keeps going after the errors due to make's parallelism.
>
> Looks like Vala is a bit outdated, gonna try to update it to the latest stable version.

This could have been a rookie mistake, since updating Vala will result in a lot of packages needing to be rebuilt... Note to self: find root cause first, bump version numbers only when necessary.