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Mail Archives: djgpp-workers/1998/01/04/04:35:39

Date: Sun, 4 Jan 1998 11:34:02 +0200 (IST)
From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
To: DJ Delorie <dj AT delorie DOT com>
cc: djgpp-workers AT delorie DOT com
Subject: Re: djgpp v2.02 alpha 980101
In-Reply-To: <199801020633.BAA08900@delorie.com>
Message-ID: <Pine.SUN.3.91.980104113339.11447H-100000@is>
MIME-Version: 1.0

On Fri, 2 Jan 1998, DJ Delorie wrote:

> SIGQUIT: I don't like the idea of redefining a key people are used to
> 	using without having their programs exit.  Can we do this a
> 	different way?

We could always disable it by default (by making the QUIT key variable
be zero).

However, I'm not sure that in practice this is a real problem.  What
programs will be affected by this change?  Can you name some of them?

The GNU packages can't be victims of this, since Ctrl-\ generates
SIGQUIT on Unix.  So those programs who need to disable SIGQUIT
already take care of this problem.

Programs that switch the console to raw binary mode disable Ctrl-\ as
well as Ctrl-C, since the same bit in __djgpp_hw_int_flags disables
both of them.

So it seems that we are looking for programs which do NOT switch stdin
to binary mode, but still use Ctrl-\ for some functionality.  Does
anybody know about such programs?

Would asking about this on c.o.m.d. (to reach wider audience) be a
good idea?

The reason I don't like having SIGQUIT disabled by default is that it
will require DJGPP-specific code to switch it on in programs that do
want to catch SIGQUIT differently than SIGINT (yes, I have examples of
such programs).

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