Re: Enabling builddir != srcdir by default in jhbuild

[Emmanuele Bassi <ebassi gmail com>]

So, it seems that the discussion died on these shores.

In the meantime, GVfs is but the latest module that broke because
people don't test under builddir != srcdir; I really, *really* don't
want to deal with this kind of perfectly avoidable build breakages any
more.

Ciao,
 Emmanuele.


On 2 March 2016 at 10:29, Yanko Kaneti <yaneti declera com> wrote:
> On Sun, 2016-02-28 at 09:54 -0600, Michael Catanzaro wrote:
> > On Sun, 2016-02-28 at 14:33 +0000, Emmanuele Bassi wrote:
> > > My proposal is to enable this behaviour in the default jhbuildrc,
> > > so
> > > that all GNOME projects automatically build in a separate root.
> > > This
> > > change should have no, or minimal impact on the subset of the
> > > moduleset that is covered by Continuous; it may require fixing the
> > > build of various modules in the gnome-apps or gnome-world
> > > modulesets.
> > > The major upsides would be that:
> > +1, I've been wanting to do this for a while.
> >
> > There is a problem though, in that Automake's vala support is pretty
> > broken for git builds where builddir != srcdir, hence all (well,
> > virtually all) vala projects only support builddir != srcdir when
> > building from tarballs. Sometimes the only way to fix builddir !=
> > srcdir issues is to introduce broken nonsensical changes to the
> > Automake file [1]. So when you make this change, you should do a
> > clean
> > build of all the modules and add exceptions for all the modules that
> > break, with the expectation that most Vala modules will be broken.
> > (You
> > were probably planning to do this anyway, so just pointing it out.)
> >
> > If anyone is interested in fixing this in Automake, that would be
> > ideal.
>
> I was interested sometime ago and produced something minimal that works
> for me but dropped the ball due to not being able to conjure the
> testcases for the fix...
>
> http://lists.gnu.org/archive/html/automake-patches/2014-12/msg00000.html
>
>
> - Yanko
>
>
> > [1] https://bugzilla.gnome.org/show_bug.cgi?id=760679
>
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