Bug#893676: hurd: internal compiler error building petsc

[Samuel Thibault <sthibault@debian.org>]

Drew Parsons, on mer. 21 mars 2018 19:25:21 +0800, wrote:
> On Wed, 2018-03-21 at 09:19 +0100, Samuel Thibault wrote:
> > Drew Parsons, on mer. 21 mars 2018 12:44:03 +0800, wrote:
> > > The build of PETSc 3.8 triggers an internal compiler error on hurd:
> > > 
> > >             CC i386-gnu-complex/obj/src/vec/vec/interface/vector.o
> > >   ../../src/init2.c:52: MPFR assertion failed: p >= 2 && p <=
> > > ((mpfr_prec_t)((mpfr_uprec_t)(~(mpfr_uprec_t)0)>>1))
> > >   /<<BUILDDIR>>/petsc-3.8.3+dfsg1/src/vec/vec/interface/vector.c:
> > > In function 'VecSetInf':
> > >   /<<BUILDDIR>>/petsc-
> > > 3.8.3+dfsg1/src/vec/vec/interface/vector.c:1860:1: internal
> > > compiler error: Aborted
> > >    }
> > 
> > Well, perhaps it's just because the current version of gcc-7 isn't
> > built.
> 
> gcc-7 7.2.0-19 is built.

The current version of gcc-7 is 7.3.0-12

> Does it mean it's not compatible with MPFR ?

The old version, possibly yes.

Samuel