Debian Bug report logs - #790782
pkg-gnome-tools: Circular build dependency loop with pygobject

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Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: Barry Warsaw <barry@debian.org>

To: Debian Bug Tracking System <submit@bugs.debian.org>

Subject: pkg-gnome-tools: Circular build dependency loop with pygobject

Date: Wed, 01 Jul 2015 13:07:45 -0400

Package: pkg-gnome-tools
Severity: normal

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Hash: SHA256

Dear Maintainer,

gnome-pkg-tools 0.19.5 (previewed in Ubuntu's 0.19.4ubuntu1)
introduces a build dependency loop with pygobject, preventing them
from being rebuilt together.  This will be a problem during any Python
3 transition.  I noticed this during my recent Python 3.5 archive test
rebuild for Ubuntu.

The crappy solution I used to break the loop was to just remove the
python3 and python3-gi Depends from gnome-pkg-tools' control.in file.
Then I uploaded this and rebuilt pygobject.  After pygobject rebuilt
successfully, I re-enabled the g-p-t Depends and closed the loop.

A better solution would probably be to split gnome-pkg-tools into
separate binary packages.  Python 3 is only needed for the
pkg-gnome-compat-desktop-file file, which AFAICT, isn't required to
build pygobject.  Splitting the binary package would allow pygobject
to depend on the dh bits it needs without introducing the circular
dependency.

- -- System Information:
Debian Release: stretch/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.0.0-2-amd64 (SMP w/1 CPU core)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

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Message #12 received at 790782@bugs.debian.org (full text, mbox, reply):

From: Daniel Schepler <dschepler@gmail.com>

To: 790782@bugs.debian.org

Subject: Re: pkg-gnome-tools: Circular build dependency loop with pygobject

Date: Sat, 9 Jan 2016 07:59:58 -0800

The dependency on gir1.2-glib-2.0 is also causing headaches in my
latest round of bootstrapping packages.  gobject-introspection itself,
as well as numerous dependencies down to glib2.0 and even intltool,
Build-Depend on gnome-pkg-tools thus creating build dependency cycles
for each one.
-- 
Daniel Schepler

Message #17 received at 790782-done@bugs.debian.org (full text, mbox, reply):

From: Emilio Pozuelo Monfort <pochu@debian.org>

To: 790782-done@bugs.debian.org, Daniel Schepler <dschepler@gmail.com>, Barry Warsaw <barry@debian.org>, Iain Lane <laney@debian.org>

Subject: Re: pkg-gnome-tools: Circular build dependency loop with pygobject

Date: Thu, 21 Apr 2016 08:47:44 +0200

Version: 0.19.7

On Wed, 01 Jul 2015 13:07:45 -0400 Barry Warsaw <barry@debian.org> wrote:
> gnome-pkg-tools 0.19.5 (previewed in Ubuntu's 0.19.4ubuntu1)
> introduces a build dependency loop with pygobject, preventing them
> from being rebuilt together.  This will be a problem during any Python
> 3 transition.  I noticed this during my recent Python 3.5 archive test
> rebuild for Ubuntu.


On Sat, 9 Jan 2016 07:59:58 -0800 Daniel Schepler <dschepler@gmail.com> wrote:
> The dependency on gir1.2-glib-2.0 is also causing headaches in my
> latest round of bootstrapping packages.  gobject-introspection itself,
> as well as numerous dependencies down to glib2.0 and even intltool,
> Build-Depend on gnome-pkg-tools thus creating build dependency cycles
> for each one.

I talked to Iain and we agreed to drop the script along with the dependencies,
as the script is not used in Debian. So these problems should be no more.

Cheers,
Emilio

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