[PATCH] Require GMP 4.2 and MPFR 2.2

Roger Sayle roger@eyesopen.com
Mon May 15 04:16:00 GMT 2006


Hi Steve,

On Sun, 14 May 2006, Steve Kargl wrote:
> I withdraw the patch.  It and my patches that require MPFR 2.2.0
> will be carried forward in my local tree.  gfortran can't afford
> alienating middle and back end developers, who will simply stop
> testing their changes with gfortran.

Is there any chance you could post your local patches that require
MPFR 2.2 to the fortran and/or gcc-patches list?  I'm curious to
see how you propose to use the new subnormal functionality, atan2
implementation, etc...  I think these are all good reasons to upgrade
MPFR (and pre-requisites should the middle-end decide to use
MPFR itself), but it might be possible to utilize autoconf's HAVE_
macros to reach a compromise whereby we make use of the fixed
and extended functionality where available, without completely
sacrificing the existing gfortran 4.1/4.2 functionality on systems
that haven't yet upgraded.

Perhaps such a compromise is impossible, as your intended changes
are significantly invasive, but without learning more about your
plans its difficult for folks to appreciate the costs vs. benefits.

Roger
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