[Numpy-discussion] Debian/Ubuntu patch help (was: ANN: NumPy 1.6.2 release candidate 1)

Ralf Gommers ralf.gommers at googlemail.com
Wed May 16 16:47:14 EDT 2012


On Wed, May 16, 2012 at 10:41 PM, Sandro Tosi <matrixhasu at gmail.com> wrote:

> Hello,
>
> On Wed, May 16, 2012 at 9:01 PM, Ralf Gommers
> <ralf.gommers at googlemail.com> wrote:
> >
> >
> > On Tue, May 15, 2012 at 10:35 PM, Julian Taylor
> > <jtaylor.debian at googlemail.com> wrote:
> >>
> >> > Hi, if there's anyone wants to have a look at the above issue this
> >> > week,
> >> >that would be great.
> >>
> >> > If there's a patch by this weekend I can create a second RC, so we can
> >> > still have the final release before the end of this month (needed for
> >> > Debian freeze). Otherwise a second RC won't be needed.
> >>
> >> bugfixes are still allowed during the debian freeze, so that should not
> >> be an issue for the release timing.
> >>
> > OK, that's good to know. So what's the hard deadline then?
>
> second half of June, but it's still not set in stone (but I'd also not
> expect too much variation)
>
> >> I don't see the issue with the gcc --print-multiarch patch besides maybe
> >> some cleanup.
> >> --print-multiarch is a debian specific gcc patch, but multiarch is
> >> debian specific for now.
> >>
> >> It doesn't work in 11.04, but who cares, that will be end of life in 5
> >> month anyway.
> >
> >
> > Eh, we (the numpy maintainers) should care. If we would not care about
> an OS
> > released only 13 months ago, we're not doing our job right.
> >
> >>
> >> Besides x11 almost nothing is multiarched in 11.04 anyway
> >> and that can still be covered by the currently existing method.
> >>
> >> gcc should be available for pretty much anything requiring
> >> numpy.distutils anyway so that should be not be an issue.
> >> On systems without --print-multiarch or gcc you just ignore the failing,
> >> there will be no repercussions as there will also not be any multiarched
> >> libraries.
> >>
> > If it's really that simple, such a patch may go into numpy master. But
> > history has shown that patches to a central part of numpy.distutils are
> > rarely issue-free (more due to the limitations/complexity of distutils
> than
> > anything else). Therefore making such a change right before a release is
> > simply a bad idea.
> >
> >> the only potential issue I see is that upstream gcc adds a
> >> --print-multiarch that does something completely different and harmful
> >> for distutils, but I don't consider that very likely.
> >>
> >> Hardcoding a bunch of paths defeats the whole purpose of multiarch.
> >> It will just to break in future (e.g. when the x32 abi comes to
> >> debian/ubuntu) and will make cross compiling harder (though I guess
> >> numpy distutils may not be built for that anyway)
> >
> >
> > If that hardcoding will break in the future, then I think for 1.6.2 the
> > maintainers of the Debian package should apply the gcc patch to their
> > packaged numpy if they think that is necessary.
>
> Agreed, i'll add back the Debian specific patch. Thanks for your time
> and analysis - so time to release 1.6.2? :)
>

Yes, this weekend probably.

Ralf
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