comp.os.msdos.djgpp Google Group

Weekly Mini-FAQ post for DJGPP

2010-01-04T06:00:01Z

This is the Mini-FAQ for djgpp. $Date: 2009/12/28 17:33:06 $
------------------------------ -
-- This is posted weekly to the djgpp news group and mailing list. --
What is DJGPP? DJGPP is a 32-bit C/C++/ObjC++/Ada/F95 development suite
-------------- for the MS-DOS environment, based on the GNU tools.

gcc ching.c compile failed

2010-01-03T21:26:38Z

void cast(char *hexagram)
{
int sum, c, i;
sum = 0;
while ((c = getchar()) != EOF) sum += c;
srandom(sum + getuid() + getgid() + getpid() + time(0));
for (i = 0; i < 6; i++) {
sum = 2 + ((random() >> 15) & 1);
sum += 2 + ((random() >> 15) & 1);
sum += 2 + ((random() >> 15) & 1);
hexagram[i] = '0' + sum;

Re: [cyd@stupidchicken.com: Emacs 23.1.91 pretest]

2010-01-01T08:53:41Z

^^^
Should have been "to install MSYS", of course. Sorry.

Re: [cyd@stupidchicken.com: Emacs 23.1.91 pretest]

2010-01-01T08:48:52Z

I'm actually glad it's not git, because it kicks a** on GNU/Linux, but
sucks on Windows (and requires top install MSYS, a Cygwin fork).
Anyway, the real reason was that Bazaar is a GNU project, while git
isn't. You can read the discussions in emacs-devel archives, several
months ago.
Nothing should hold file names from the build system. I used to grep

Re: GCC 2.6.3 and Cygnus' -mfpflaw patch

2009-12-31T20:55:35Z

Hi,
Except that the patch itself was written by Cygnus peeps (pre-Red
Hat), hence was unofficial and never (AFAICT) incorporated into GCC
proper.
I'm thinking "gcc-patches" is a better place, but ... the only thing
worse than being flamed is being ignored into oblivion. (Oh well,
gotta try anyways ....) :-/

Re: [cyd@stupidchicken.com: Emacs 23.1.91 pretest]

2009-12-31T20:39:26Z

Hi,
I'm surprised it's not Git, considering how beloved that is these days
(Perl, NASM, Stone Soup).
.sdrawkcab daer t'nac I (but I guess you can) ;-)
I didn't expect any. Two questions, though:
1). Are there any files that have hardcoded data (e.g. paths) in them
that should be avoided when making the .ZIP? Anything that would be

Re: GCC 2.6.3 and Cygnus' -mfpflaw patch

2009-12-31T20:29:48Z

I think asking the gcc developers about a patch they developed long
ago is a suitable topic for the gcc developers list (g...@gcc.gnu.org).
It doesn't matter what OS you use.

Re: [cyd@stupidchicken.com: Emacs 23.1.91 pretest]

2009-12-31T20:21:04Z

Not much, it's primarily a bugfix release. If it is stable enough,
chances are that the next release will be 24.1.
Well, I thought I'd do it, but got even busier: Emacs switched to
Bazaar as its VCS, and I'm working on adding bidirectional editing to
it. So no promises, unfortunately.
Thanks.

Re: GCC 2.6.3 and Cygnus' -mfpflaw patch

2009-12-31T19:34:57Z

Hi,
Any Pentiums from circa 1993 to 1995 would've been affected, IIRC.
Which list? Aren't there several? You really think they wouldn't flame
me to death for using (gasp) DOS *and* old GCCs *and* old hardware??
If you know where I should go, please point me in that
direction! :-)

Re: [cyd@stupidchicken.com: Emacs 23.1.91 pretest]

2009-12-31T19:31:42Z

Hi,
If my XP machine wasn't on the fritz, I'd be all over this. So I may
not be too helpful in building this for a while.
What's new exactly? IIRC, not much was planned for 23.2, at least
nothing that mattered to DOS much (lexical binding branch?? Mac OS X
port??).
BTW, we still don't even have an official 23.1 package for DJGPP yet.

Re: GCC 2.6.3 and Cygnus' -mfpflaw patch

2009-12-31T19:01:37Z

I still do, sort of, but that was before my time. Might be related
to the famous "pentium FDIV bug".
Might be more interesting to ask this question on the gcc list, not
here - the people who wrote it still work on gcc.

[cyd@stupidchicken.com: Emacs 23.1.91 pretest]

2009-12-31T19:00:58Z

Emacs 23.2 is in pretest, see below. The latest version 23.1.91 just
built on my XPSP2 box.
Please give it a try and report any unusual findings.
I'm especially interested in reports, whether success or failure,
about building and using on plain DOS or its clones (as opposed to
Windows).
TIA
------- Start of forwarded message -------

Re: GCC 2.6.3 and Cygnus' -mfpflaw patch

2009-12-31T18:39:59Z

Hi,
No responses? Bah. I know there's one guy around here with a buggy
Pentium (not counting CWS), but I forget his name. Didn't DJ used to
work for Cygnus? So he don't know nuthin'? :-/
Long story short, I recompiled GCC 2.6.3, but the compiled .EXE for my
silly example seems to be the same whether using -mfpflaw or not.

GCC 2.6.3 and Cygnus' -mfpflaw patch

2009-12-29T05:04:37Z

Does anyone know anything about the Cygnus patch to GCC 2.6.3 to deal
with the FDIV bug? It seems similar to what Digital Mars, Borland C,
and OpenWatcom support. However, neither DJGPP v1's compile nor any
subsequent GCCs seem to have incorporated this feature. Granted, it's
unofficial, maybe they didn't think it worked well enough, or maybe

Weekly Mini-FAQ post for DJGPP

2009-12-28T06:00:03Z

This is the Mini-FAQ for djgpp. $Date: 2009/12/17 19:14:48 $
------------------------------ -
-- This is posted weekly to the djgpp news group and mailing list. --
What is DJGPP? DJGPP is a 32-bit C/C++/ObjC++/Ada/F95 development suite
-------------- for the MS-DOS environment, based on the GNU tools.