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Re: LYNX-DEV Control-Z and SIGSTOP mysteries

From: Foteos Macrides
Subject: Re: LYNX-DEV Control-Z and SIGSTOP mysteries
Date: Mon, 19 May 1997 15:48:10 -0500 (EST)

"Hiram Lester, Jr." <address@hidden> wrote:
>On Sat, 17 May 1997, Klaus Weide wrote:
>> On Sat, 17 May 1997, Foteos Macrides wrote:
>> >    That was intended to communicate that I don't have the
>> > foggiest idea why Hiram can't suspend on HP.  
>> Yes, that's the third ^Z problem (in my counting...).
>> I have noticed the ^Z-doesn't-work problem with some other binaries,
>> but couldn't reproduce it now on sol.  It never seems to happen with
>> slang.  It may depend on (n)curses version, system, and who-knows what
>> else.
>This particular binary was built with gcc using the snake target on HP-UX
>9.07 and the standard curses package.  I'm having problems getting the
>vanilla code to even compile on 10.20 with gcc (snake3 works).  If I try
>^Z when I first start up lynx, it doesn't work.  When I do a ^L, the
>cursor is moved to the top left corner of the screen, and nothing is
>displayed.  Hitting 'q' followed by a return or 'Q' or any other
>recognized way of quitting lynx does what it is supposed to do, so it
>would imply a display problem to me...
>Is there anything I can do to help track down this problem?

        You can try turning on TRACE before the ^Z.  The TRACE messages
use fprintf's to stderr, not screen management via curses or slang
(intentionally), and might include information which helps.  The
suspend, itself, has failed, or Lynx wouldn't be responding to your
keyboard input, but the additional question is why isn't it a clean
failure.  Since you're using fotemods with the Trace Log output as
the default, after the ^Z press ';'.  If that's not displayed either,
'q'uit and look at ~/Lynx.trace directly.


 Foteos Macrides            Worcester Foundation for Biomedical Research
 address@hidden         222 Maple Avenue, Shrewsbury, MA 01545
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