GNU bug report logs - #15842
Integer overflow on Mac OS X 64-bit

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Message #16 received at 15842-done <at> debbugs.gnu.org (full text, mbox):

From: Geert Janssens <geert <at> kobaltwit.be>
To: Mark H Weaver <mhw <at> netris.org>
Cc: 15842-done <at> debbugs.gnu.org
Subject: Re: bug#15842: Integer overflow on Mac OS X 64-bit
Date: Fri, 15 Nov 2013 09:24:55 +0100

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On Thursday 14 November 2013 19:25:25 Mark H Weaver wrote:
> When reporting bugs, please tell us what version of Guile you're
> using.
> 
Oops, I should have known better. William S. Fulton (from the Swig project), filled 
in the details in message #8.

> This is fixed in Guile 2.0.9.  The bug came into existence when clang
> started optimizing out overflow checks, on the theory that if a signed
> integer overflow occurs then the behavior is unspecified and thus the
> compiler can do whatever it likes.
> 
As noted by William, the bug appears in 1.8. Is there any chance to get this fix 
backported to that branch ? Or has support for 1.8 stopped completely in the 
meantime ?

Thanks,

Geert

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