[PATCH] Work around in-tree gmp configure problems

[Jan-Benedict Glaw]

Hi Richard,

On Mon, 2014-11-24 12:53:11 +0100, Richard Biener <richard.guenther@gmail.com> wrote:
> On Sat, Nov 22, 2014 at 4:34 PM, Jan-Benedict Glaw <jbglaw@lug-owl.de> wrote:
> > On Sat, 2014-11-22 14:33:29 +0100, Bernd Edlinger <bernd.edlinger@hotmail.de> wrote:
> > > since r217627 we use an updated AutoMake "missing" script.  However
> > > that revealed a hidden bug in gmp-4.3.2's (up to gmp-6.0.0a)
> > > configure script.  That is: an in-tree gmp/configure fails now if
> > > flex is missing.  The gmp configure uses our missing flex script,
> > > and previously that emitted an error message and created a dummy
> > > lex.yy.c, The new version of that script does no longer create any
> > > lex.yy.c.
> > [...]
> > > 2014-11-22  Bernd Edlinger  <bernd.edlinger@hotmail.de>
> > >
> > >       * Makefile.def (module=gmp): Work around in-tree gmp configure
> > >       bug with missing flex.
> > >       * Makefile.in: Regenerated.
> >
> > Bernd and I discussed that patch; I'm all for it! Looks like that's
> > the least-ugly thing we'd possibly come up with.
> 
> I suppose it is fixed upstream now?

*cough* No. Not at all.

I subscribed to gmp-devel and sent a longish email with all the
details, just to get it rejected: gmp-devel seems to be used for
internal discussion between core developers. Re-sent it to
gmp-discuss, but no response there at all. So up to now, there's no
upstream change on the GMP side at all.

  In the mean time, I received other emails about specific problematic
cases; the outcome there is that they're asking the GCC guys to not
recommend the old 4.3.2 release, but to use some modern version and
build it with --disable-assembly.  Of course, that doesn't fix the
observed configure problem. (However, using a modern version sounds
like a fair request.)

MfG, JBG

-- 
      Jan-Benedict Glaw      jbglaw@lug-owl.de              +49-172-7608481
Signature of:              Fortschritt bedeutet, einen Schritt so zu machen,
the second  :                   daß man den nächsten auch noch machen kann.
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