This is the mail archive of the
cygwin
mailing list for the Cygwin project.
Re: g77 on cygwin64
- From: Richard <richard at KarmannGhia dot org>
- To: David Conrad <DavidConrad at acm dot org>
- Cc: Andrey Repin <cygwin at cygwin dot com>
- Date: Wed, 12 Feb 2014 11:06:18 -0800 (PST)
- Subject: Re: g77 on cygwin64
- Authentication-results: sourceware.org; auth=none
- References: <52FAF082 dot 6020805 at appstate dot edu> <52FB0686 dot 8080403 at gmail dot com> <52FB13E2 dot 1070107 at appstate dot edu> <724410821 dot 20140212111451 at mtu-net dot ru> <CAMCbSMoqb_TsY3BQSU-AwnCOuCYecwCw4YexBQuUhbAbpSNDQg at mail dot gmail dot com> <52FB8E3C dot 3030704 at appstate dot edu> <1436686110 dot 20140212211626 at mtu-net dot ru> <CAEotdwn+dWCyiw2a6oN987XOP2Fs6BkAfkwChe5ZH3UWs3d=Cg at mail dot gmail dot com>
On Wed, 12 Feb 2014, David Conrad wrote:
Since the problem occurs going from 32-bit to 64-bit Cygwin, it sounds
to me like all-the-world's-a-VAX syndrome. I bet there are places
where it reads from files and assumes that if it reads N words into
integers, that is N 32-bit quantities, or something like that. I
haven't written any Fortran since the 1980s, but I bet there are types
that have changed size due to the switch to 64-bit and that results in
reading incorrect values from files, including reading some of them
from the wrong file offsets, and hitting end-of-file at a different
point.
It's called, "inadvertent varriable sharing."
Yeah, I was there, fought those battles. The proof of what was going on
was found in crash dumps. ...This was from the era when "RISC
architecture" meant "Relegate all the Important Sh_t to the Compiler."
Richard
--
Problem reports: http://cygwin.com/problems.html
FAQ: http://cygwin.com/faq/
Documentation: http://cygwin.com/docs.html
Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple