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Bug#612341: could anyone summarize the status on libjpeg-turbo WNPPs? [question for Tom]



Hi Mike et al.,

On Sat, 16 Mar 2013, Mike Gabriel wrote:
> >I wonder if anyone could give a concise summary stopping libjpeg-turbo
> >from being uploaded?  there seemed to be lots of work, clarifications
> >from upstream, downstream distributions including it,... and no
> >clarity why we do not have it in Debian yet (could simply be a lack of
> >time?).

> >Thank you in advance!

> I have experimented around with libjpeg-turbo.git on collab-maint recently.
> I have updated upstream to 1.2.90.

Thanks for pushing it forward!

Let me start with boring stuff:

- we should clarify debian/copyright content on debian/* materials
  copyright/license

  judging from git history, debian/* is not only "copyright" by our team
  but also by 2010, 2011 Linaro Limited; 

  original license of Tom's (Linaro) work was LGPL-2.1 (probably for no
  specific reason)

  then Matthias Klose <doko@ubuntu.com>  also contributed (no changes in
  debian/copyright were done though)

  and then there was
+  * Drop outdated copyright notice for /debian folder and replace by
+    GPL-2+ copyright entry in /debian/copyright.

  which imho is incorrect -- we cannot subsume contributions of Tom and
Matthias   without their agreement ... moreover for Linaro's portion it might
even be not that easy -- so we should just maintain that copyright entry as
long as current work is based on their work ;)  But I am CCing them now
(may be they would like to join the team) -- 

  Tom -- do you remember a reason for choosing GPL for the debian/* works?
  Ideally we should stay with a license compatible with upstream, in this case
  BSD-3.  Would it be possible to change the license for your works, or am I 
  missing the point here?

- debian/changelog

  as long as this work is based on someone else's work, I would prefer to keep
the history, only replace "unstable" with "UNRELEASED" or any other
distribution/release where that version was available (e.g precise)
 

> By now the current version already looks quite promosing (I hope).
> The dpkg-divert stuff, I have remove. The current policy is:

>   o link native libjpeg-turbo code against libturbojpeg1
>     -> a package like TigerVNC or VirtualGL should use libturbojpeg1
>   o if the system admin chooses to replaced libjpeg8 by libjpeg8-turbo,
>     he/she may do so. Only then libjpeg8 is replaced (including all
>     consequences for all applications on the system)

> Only open (lintian) issues:

> mike@sid:~/build$ lintian -IE --pedantic --show-overrides --color
> auto libjpeg-turbo_1.2.90-1_amd64.changes
> X: libturbojpeg1: shlib-calls-exit
> usr/lib/x86_64-linux-gnu/libturbojpeg.so.1.2.90
> X: libjpeg8-turbo: shlib-calls-exit usr/lib/x86_64-linux-gnu/libjpeg.so.8.0.2

apparently inherent in libjpeg as well (and quite a few other tools) but they
do not provide a lintian override with a description and it seems to me that it
might indeed be a "legit violation" -- needs some analysis

> W: libjpeg-turbo-test: binary-without-manpage usr/bin/jcstest
> W: libjpeg-turbo-test: binary-without-manpage usr/bin/tjunittest

I would just override those with a notice that no upstream manpages are
provided and these ones are of limited user use

related:  I see empty override_dh_auto_test: -- shouldn't package better
exercise those tests at build time and fail if they fail (the practice I adhere
to in my packages)?

> W: libjpeg-turbo-progs: hardening-no-relro usr/bin/jpegexiforient
> W: libjpeg-turbo-progs: hardening-no-fortify-functions usr/bin/jpegexiforient

now I spotted debian/extra -- needs an entry into debian/copyright, e.g.
Guido Vollbeding <guido@jpegclub.org>

> N: yes, the package has a different name
> O: libjpeg8-turbo: package-name-doesnt-match-sonames libjpeg8
> N: yes, we specifically want linkers to depend on the standard libjpeg name
> O: libjpeg8-turbo: shlibs-declares-dependency-on-other-package libjpeg8 (>= 8)

good ;)

> Can you take a look and give feedback till here?

I will try to build the beastie now ;)

-- 
Yaroslav O. Halchenko
http://neuro.debian.net http://www.pymvpa.org http://www.fail2ban.org
Senior Research Associate,     Psychological and Brain Sciences Dept.
Dartmouth College, 419 Moore Hall, Hinman Box 6207, Hanover, NH 03755
Phone: +1 (603) 646-9834                       Fax: +1 (603) 646-1419
WWW:   http://www.linkedin.com/in/yarik        


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