/* * * debug.c * *	Copyright (C) Aaron Holtzman - May 1999 * *  This file is part of ac3dec, a free Dolby AC-3 stream decoder. *	 *  ac3dec is free software; you can redistribute it and/or modify *  it under the terms of the GNU General Public License as published by *  the Free Software Foundation; either version 2, or (at your option) *  any later version. *    *  ac3dec is distributed in the hope that it will be useful, *  but WITHOUT ANY WARRANTY; without even the implied warranty of *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the *  GNU General Public License for more details. *    *  You should have received a copy of the GNU General Public License *  along with GNU Make; see the file COPYING.  If not, write to *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  * */#include <stdlib.h>#include "debug.h"static int debug_level = -1;// Determine is debug output is required.// We could potentially have multiple levels of debug infoint debug_is_on(void){	char *env_var;		if(debug_level < 0)	{	  env_var = getenv("AC3_DEBUG");		if (env_var)		{			debug_level = 1;		}		else			debug_level = 0;	}		return debug_level;}//If you don't have gcc, then ya don't get debug output#ifndef __GNUC__void dprintf(char fmt[],...){	int foo = 0;}#endif