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To: cygwin-developers AT sourceware DOT cygnus DOT com
Subject: Re: ^Z can't suspend less in the tty mode
References: <779F20BCCE5AD31186A50008C75D9979171722 AT silldn_mail1 DOT sanwaint DOT com>
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From: Kazuhiro Fujieda <fujieda AT jaist DOT ac DOT jp>
Date: 09 May 2000 21:13:29 +0900
In-Reply-To: "Fifer, Eric"'s message of Tue, 9 May 2000 10:41:59 +0100
Message-ID: <s1sem7byl92.fsf@jaist.ac.jp>
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>>> On Tue, 9 May 2000 10:41:59 +0100 
>>> "Fifer, Eric" <EFifer AT sanwaint DOT com> said:

> What is happening is that when SIGTSTP is caught the signal
> handler does a longjmp().  And, when the thread restarts at the
> setjmp() the signal mask is not restored.

I can understand what is the problem. less wants setjmp() and
longjmp() to do more than what they can do in Cygwin.

> This is a patch against
> less-354 (from http://home.flash.net/~marknu/less/ ) which fixes
> the problem:

Your patch is also applicable to many older versions.
____
  | AIST      Kazuhiro Fujieda <fujieda AT jaist DOT ac DOT jp>
  | HOKURIKU  School of Information Science
o_/ 1990      Japan Advanced Institute of Science and Technology