On Fri, 20 Feb 2026 at 21:56, Jonathan Wakely <[email protected]> wrote:
>
> On Fri, 20 Feb 2026 at 21:36, Richard W.M. Jones <[email protected]> wrote:
> >
> > On Fri, Feb 20, 2026 at 09:26:29PM +0000, Jonathan Wakely wrote:
> > > On Fri, 20 Feb 2026 at 21:08, Richard W.M. Jones <[email protected]> 
> > > wrote:
> > > >
> > > > On Fri, Feb 20, 2026 at 02:24:57PM -0500, Neal Gompa wrote:
> > > > > I could try to look into updating this, but I'll need some help to
> > > > > figure out how to get all the revdeps rebuilt and such. Do we want to
> > > > > try to merge this into the main boost spec? Or keep it separate?
> > > >
> > > > It'd be ideal to merge it since it reduces long term maintenance, but
> > > > that's going to require both the cooperation and the understanding of
> > > > Fedora's boost maintainer.
> > >
> > > What's the context here? Merge what?
> >
> > At the moment, nothing more than discussion.
> >
> > For some packages we've combined the mingw-* [Windows] package with
> > the main package (so the mingw-* package is built as a subpackage from
> > the same sources).  An example is worth a 1000 words, so:
> >
> > https://src.fedoraproject.org/rpms/gnutls/blob/rawhide/f/gnutls.spec
> > (look for the 'with mingw' sections).
> >
> > Advantages are that the packages always stay in sync, and there's
> > less maintenance (at least, in total).
> >
> > Disadvantages is this puts extra burden on the main maintainer.  For
> > some packages it might be a very great extra burden, for others not so
> > much.  It also makes the spec file a lot more complicated.
> >
> > Since the mingw-boost package has fallen some way behind the main
> > package, that's what we were discussing.
>
> I see, thanks.
>
> I have no objection in principle, but the boost package is a major
> pain that always requires considerable TLC every time we update it.
> The upstream project only supports building with Boost's own 'b2'
> build system, which I cannot describe using polite words.
>
> The mingw-boost.spec file looks much simpler, as it doesn't build the
> MPI parts (which need to be built twice, once for openmpi and once for
> MPICH). But that means that none of the commands in the %build section
> are common to the ones in boost.spec. Merging it in would probably
> result in the entire %build section being %if ... %else ... %endif
> where the normal build and the mingw build are entirely separate. And
> the same for %install. I'm not sure how much benefit that would
> actually bring. At least the list of patches and %prep would be
> common, but maybe not much else? The %files look completely disjoint.

And the main package builds several dozen subpackages
(boost-filesystem, boost-thread, boost-devel, ...) whereas the
mingw-boost.spec just builds four subpackages, with no overlap.

So it really does look like there would be two entirely separate spec
files intermingled into one file, with large %if blocks everywhere,
and approximately 100 lines that are common to both builds.
boost.spec is over 1300 lines (excluding the %changelog) and it looks
like another 500 or so would be added from mingw-boost.spec, so we'd
have about 2000 lines in total, with only 5% shared by the two worlds.

-- 
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