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Changed main() return type to int and added fix for Bug 148: Modify build
procedure to allow installation in /usr/local.

/*
 *
 *  Copyright (C) 2000 Silicon Graphics, Inc.  All Rights Reserved. 
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 *
 *  This library 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
 *  Lesser General Public License for more details.
 *
 *  Further, this software is distributed without any warranty that it is
 *  free of the rightful claim of any third person regarding infringement
 *  or the like.  Any license provided herein, whether implied or
 *  otherwise, applies only to this software file.  Patent licenses, if
 *  any, provided herein do not apply to combinations of this program with
 *  other software, or any other product whatsoever.
 * 
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 *  Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
 *  Mountain View, CA  94043, or:
 * 
 *  http://www.sgi.com 
 * 
 *  For further information regarding this notice, see: 
 * 
 *  http://oss.sgi.com/projects/GenInfo/NoticeExplan/
 *
 */

/*
 _______________________________________________________________________
 ______________  S I L I C O N   G R A P H I C S   I N C .  ____________
 |
 |   Copyright (C) 1990-96   Silicon Graphics, Inc.
 |
 |   $Revision: 1.3 $
 |
 |   main ()
 |
 |   Author	: Dave Immel
 |
 ______________  S I L I C O N   G R A P H I C S   I N C .  ____________
 _______________________________________________________________________
 */

#include <stdlib.h>
#include <math.h>
#include <time.h>
#include <Inventor/Xt/SoXt.h>
#include "TsField.h"

#define  FIELD_RESOLUTION   4

/*
 _______________________________________________________________________
 |
 |   Synopsis:
 |	main()
 |
 |   Description:
 |	Initialize the game and enter the Xt main loop.
 |
 _______________________________________________________________________
 */
int
main( int, char **argv )
{
    // Initialize Inventor and Xt
    Widget appWindow = SoXt::init(argv[0]);
    if ( appWindow == NULL ) exit( 1 );

    //
    // Initialize a random number generator to be used in selecting the
    // next piece and orientation.
    //
    time_t tvec;
    time (&tvec);
    srand48 ((long) tvec);

    // Build the layout of the game.
    TsField  *field  = new TsField( FIELD_RESOLUTION, appWindow );
    field->setTitle( "Drop" );
    field->initGame();
    field->show();

    // Enter the Xt event loop
    SoXt::show( appWindow );
    SoXt::mainLoop();
}