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Re: final snapshot in preparation for m4 1.4.12

From: Tom G. Christensen
Subject: Re: final snapshot in preparation for m4 1.4.12
Date: Mon, 29 Sep 2008 21:00:50 +0200
User-agent: Mutt/

On Mon, Sep 29, 2008 at 06:05:07AM -0600, Eric Blake wrote:
> According to Tom G. Christensen on 9/28/2008 4:16 AM:
> > 
> > On Irix 6.x gnulib test-signbit still fails:
> > test-signbit.c:149: assertion failed
> > /bin/ksh[10]: 18432 Abort(coredump)
> > FAIL: test-signbit
> That line is "ASSERT (!signbit (-zerol));".  I wonder if we're tripping
> over some compiler bugs; at any rate, it is in the area of code where we
> still don't have an answer for the HP compiler bug on how to reliably
> compile -0.0L (minus_zerol in the if on line 146 is not necessarily the
> same as -zerol in the ASSERT, so the wrong if branch may have been taken).
>  Can you post the relevent section of config.log related to signbit tests?
I wasn't sure what parts would be considered relevant so I've dumped
full config.log files and buildlogs at:

One other thing I noticed is that configure can't find the signbit in a
'long double' on Irix 6.x:
checking where to find the sign bit in a 'long double'... unknown


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