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Re: Bug#509697: Python 2.5, ctypes, and binutils

* Sandro Tosi [Wed, 31 Dec 2008 14:58:43 +0100]:

> Hi all,
> reporting here what discussed with Adeodato on irc:

> On Fri, Dec 26, 2008 at 17:04, Adeodato Simó <dato@net.com.org.es> wrote:
> > Regarding #509697 (python 2.5 providing ctypes, and ctypes using
> > objdump), I don't think it's reasonable to make python2.5 depend on
> > binutils, just for the purpose of one of the modules in the standard
> > library. One option would be to add binutils to Recommends or Suggest,
> > but that does not ensure packages that Depend: python-ctypes will work.

> > Maybe "python" should stop Providing: python-ctypes, and python-ctypes
> > should depend on "python (>= 2.5) | python2.4" instead of just
> > "python2.4" (plus the recently added a dependency on binutils). This way
> > binutils will get pulled only when a package that depends on
> > python-ctypes is installed. (This does not solve, however, packages that
> > are being smart and are depending on "python (>= 2.5) | python-ctypes".
> > But maybe those packages should stop doing that.)

> > If this is the way to go, then for squeeze it means that, if the ctypes
> > source package is to disappear, it should be created as a dummy package
> > (from python-defaults instead?), if only to contain the binutils
> > depends/recommends.

> Of course, upload again ctypes to update the depends it's pretty easy;
> what it's a little bit more "critical" are the "smarts" rdepends that
> currently Deps on "python (>= 2.5) | python-ctypes"; those are:

> $ grep-available -FDepends,Recommends,Suggests "python-ctypes | python
> (>= 2.5)" -o -FDepends,Recommends,Suggests "python (>= 2.5) |
> python-ctypes" -sPackage
> Package: python-musicbrainz2
> Package: telepathy-butterfly
> Package: python-elisa
> Package: python-utidylib
> Package: python-msn
> Package: python-opengl
> Package: python-pyglet

> Now, even since they're not that many, and nmus (if the maints won't
> react in a timely fashion) could be done, my fear (partially shared
> with dato) if this is the right time for this "mini"-migration, due to
> the hard freeze is coming ReallySoonNow.

> I'd like to hear from you what's you're thinking.

The Python maintainer introduced in python2.5 2.5.2-15 a patch to
implement find_library() using ldconfig first, which should be available
everywhere; and only if that fails, use objdump. The theory is that
packages that know/discover ldconfig won't be enough, should gain a
dependency on binutils.


Adeodato Simó                                     dato at net.com.org.es
Debian Developer                                  adeodato at debian.org
                         Listening to: Presuntos Implicados - La alegría

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