From mboxrd@z Thu Jan  1 00:00:00 1970
To: 9fans@cse.psu.edu
Subject: Re: [9fans] Re: Building GCC
From: "Russ Cox" <rsc@swtch.com>
Date: Thu, 24 Jan 2008 16:52:01 -0500
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> But in my version of hoc, you'll see
> 
> 	#ifdef PLAN9
> 	USED(something-or-other-because-this-is-a-signal-handler-and-I-do- 
> not-care-about-that-necessary-argument-as-this-handler-just-calls- 
> exit-or-execerror);
> 	#endif
> 
> and that program uses pcc. Is there a command line option to turn  
> that off? I won't need it right now, since my hoc code is lost to  

If you have a function that takes an argument you
don't need to use, then simply delete the name of
the argument.  Instead of

	void nop(int s) { }

you write

	void nop(int) { }

Or you insert USED(s).  
Or you disable all warnings with -w.
Your choice.  

All this is in /sys/doc/comp.ps

Russ