Perl 32 bit enabling -Duse64bitint (was: Re: Removing packages that have broken dependencies in F23 tree)

Richard W.M. Jones rjones at
Mon Oct 5 12:05:17 UTC 2015

On Sun, Oct 04, 2015 at 01:37:38PM +0100, Richard W.M. Jones wrote:
> On Sun, Oct 04, 2015 at 06:51:28AM +0100, Peter Robinson wrote:
> > On Sun, Oct 4, 2015 at 4:43 AM, Jerry James <loganjerry at> wrote:
> > > On Thu, Sep 24, 2015 at 8:34 AM, Kalev Lember <kalevlember at> wrote:
> > >> polymake                jjames, rmattes
> > >
> > > At long last I have been able to fix this.  The polymake maintainers,
> > > based on their experience with some unspecified Linux distributions,
> > > not including Fedora but including Ubuntu, assumed that all 32-bit
> > > perl builds include 64-bit native integers.  However, Fedora's perl is
> > > configured so that 32-bit perl has only 32-bit native integers.  The
> > > polymake maintainers expressed great surprise that Fedora is so
> > > backward that we haven't heard about 64-bit native integers in 32-bit
> > > perl yet.  Nonetheless, once the problem was identified, they helped
> > > me fix it and promised to add a test for this problem to their test
> > > suite to prevent its reappearance.
> > 
> > Might be worth filing a bug to track/document why we don't have the
> > 64bit ints on 32 bit perl.
> Debian uses `Configure -Duse64bitint' which seems to be the key.
> I've written quite a few Perl programs where I've had to tell the end
> user that they must use a 64 bit platform.  Didn't realize until now
> there was a way to configure 64 bit ints on a 32 bit platform.

I was kind of hoping a Perl developer might jump in there, but perhaps
because this thread quite old, and has a confusing subject line, no
one has.  Anyway I filed this bug:


Richard Jones, Virtualization Group, Red Hat
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