/*  * This file is part of the UCB release of Plan 9. It is subject to the license * terms in the LICENSE file found in the top-level directory of this * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No * part of the UCB release of Plan 9, including this file, may be copied, * modified, propagated, or distributed except according to the terms contained * in the LICENSE file. */ #include <u.h>#include <libc.h>#include <draw.h> voiddrawsetdebug(int v){	uchar *a;	a = bufimage(display, 1+1);	if(a == 0){		fprint(2, "drawsetdebug: %r\n");		return;	}	a[0] = 'D';	a[1] = v;}