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Date: Wed, 02 Sep 2009 06:12:20 +0300
From: Eli Zaretskii <eliz AT gnu DOT org>
Subject: Re: signals
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> From: dave <peters DOT also AT gmail DOT com>
> Date: Tue, 1 Sep 2009 13:03:28 -0700 (PDT)
> 
> Can I ask about signals generally ? How to provide DJGPP library
> signals in GNU programs ?
> for example SIGWINCH, SIGSTOP,SIGCONT etc...
> Where I should define this, because some GNU programs require this.

You should #ifdef away any code that needs them.  Like this:

  #ifdef SIGWINCH
  code that uses SIGWINCH
  #endif