Bug#171542: please take a look at an ocaml-related apt bug (171542)
On Sun, Feb 23, 2003 at 10:41:30AM -0500, Faheem Mitha wrote:
>
>
> On Sun, 23 Feb 2003, Sven Luther wrote:
>
> > On Sun, Feb 23, 2003 at 02:23:39AM +0000, Faheem Mitha wrote:
> > > Dear People,
> > >
> > > On Dec 3rd 2002 I filed a bug (Debian bug 171542) for a build
> > > dependency problem involving advi and ocaml against apt. I'm not sure
> > > whether this really is an apt bug or an ocaml bug. I was wondering if
> > > someone could take a look at this and perhaps shed some light on it. I
> > > don't know what is going on here, but clearly something a little
> > > peculiar. Thanks.
> > >
> > > http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=171542
> >
> > Err, i did look at the bug report, but it was not clear what version you
> > where trying to build. You say the latest version from unstable, but it
> > is not clear if it is the new 1.4.0-3, or an older version like one of
> > the post 1.2.0-date cvs snapshots.
>
> It is a 1.2 version. I don't think Debian had 1.4 at that time (Dec 3rd),
> and as you can see I am trying to build from Debian sources. Also, the
> very first post in that thread has
Mmm, ok,
> Chrestomanci:/usr/local/src/advi/advi-1.2.0#
>
> I'm sorry, I'm not sure about the exact version, but I doubt it matters.
Could you look into debian/changelog about it, and copy me the
debian/control file, especially the build-dep and dep lines.
> > Anyway, notice that the new version build depends on the exact same
> > version of ocaml that you are using, and so it is not (easily) possible
> > to build ocaml 1.4.0-3 with the 3.04-12 version of ocaml in testing, you
> > would have to modify the debian/control file for it, because we don't
> > depend on ocaml anymore, but on ocaml-3.06 (for ocaml versions prior to
> > 3.06-13), or ocaml-3.06-1 (for ocaml versions since 3.06-13), which both
> > provide ocamltk.
> >
> > The best solution to this is to use Stefano's woody backport of the
> > ocaml 3.06 packages, or simply wait the two weeks needed for ocaml
> > 3.06-15 to enter testing, if no new glibc bug appears in the meantime.
>
> I don't care (any longer) about building advi (or ocaml). I already have
> advi 1.4 built for sarge, which you helped me with, remember?
Ok, ...
> At this point I am just interested in tracking down the source of this
> bug, and I wondered if you could help me determine whether the apt
> behaviour shown in the report was an apt bug or could be explained as some
> advi/ocaml issue. Please spare a few minutes to skim through the whole
> thread. There is some discussion. Thanks.
Ok, let's see this.
ocaml 3.06-13 was uploaded on december 14, so advi clearly didn't depend
on this one. Also at that time, you most probably had 1.2.0-4, which was
released on november 8, while 1.2.0-5 was released on december 16.
At that time, ocaml provided ocaml-3.06, so i guess advi build-depended
on ocaml-3.06 (and not ocaml), which was a version which did provide
ocamltk, and you would not have been able to fulfill this dependency by
either the woody or sarge ocaml packages. So apt selected the ocaml-3.06
(which was a virtual package) from further down your source-list (in
sid), saw that it was provided by the unstable ocaml package, which also
provided ocamltk.
So, if there is a problem with apt, it may be related to the virtual
package thingy, but i don't really know, the discution in the bug report
let me a bit confunded, but please tell me if the above scenario seems
reasonable. Anyway, the new ocaml 3.06-16 package should solve the
virtual depends issue, if there was one, but i will not upload it after
the mini-freeze, which will let ocaml 3.06 enter testing.
BTW, next time you encounter such a problem, please keep us (the list)
or at least me informed as soon as the problem appears, and not so much
later, it makes helping difficult, especially as i only run sid boxes.
Friendly,
Sven Luther
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