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Re: Proposed MBF: Removal of libfreetype6-dev (causing FTBFS)



On Saturday, 19 August 2023 10:54:20 CEST Sven Joachim wrote:
> On 2023-08-19 10:03 +0200, Diederik de Haas wrote:
> > [please CC me as I'm not subscribed to debian-devel]
> > 
> > On Mon, 17 Jul 2023 at 21:45:13 +1000, Hugh McMaster wrote:
> >> On Mon, 17 Jul 2023 at 00:07, Simon McVittie wrote:
> >> > On Sun, 16 Jul 2023 at 22:38:20 +1000, Hugh McMaster wrote:
> >> > > Currently, there are 219 build-dependencies and 29 (direct)
> >> > > dependencies on libfreetype6-dev, which has been released with
> >> > > bullseye and bookworm.
> >> > 
> >> > Lintian diagnoses this as "[build-]depends-on-obsolete-package" since
> >> > 2.116.0 (MR at [1], instances of the relevant tags listed at [2] and
> >> > [3]) which will hopefully help progress towards dropping the
> >> > transitional
> >> > package.
> >> 
> >> Thanks for pointing this out. I wasn't aware Lintian had started
> >> flagging dependencies on obsolete packages some 10 months ago.
> >> 
> >> Having Lintian issue a warning or error instead of bug filing is
> >> preferable.> 
> > While it's true that lintian did issue an error, now that src:freetype has
> > been updated and libfreetype6-dev has been dropped, there are a number of
> > packages which hadn't been updated and now FTBFS.
> 
> Could you please name an example?

Hmm. It appears there is something wrong in my reasoning.
I first looked at https://tracker.debian.org/pkg/xft, so that would be my 
example. It Build-Depends on libfreetype6-dev (and libfontconfig1-dev), so I 
assumed that when that B-D no longer exists, it would thus FTBFS.

So I made https://salsa.debian.org/xorg-team/lib/xft/-/merge_requests/3 to fix 
that, but while it did make the CI pipeline succeed, it was only after your 
message that I realized that the 'before' pipeline *did* succeed in the 
'build' job ... which indicates it does NOT FTBFS.

But I still don't understand why. Can you point out where my reasoning is 
incorrect and that a 'disappearing' B-D does not (automatically) cause a 
FTBFS?

> At the time I recommended just removing the libfreetype6-dev package[2],
> based on my experience with the transitional -dev packages in ncurses,
> where this approach worked without a hitch.  What is different in
> freetype?

I did see your message, but as described above I didn't/don't understand why 
that apparently does work.

Cheers,
  Diederik

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