Changes for DERIVES.C by Andreas Scherer, January 20, 1995.

@x l.26
#include <stdio.h>
#include "system.h"
#include "new.h"
#include "types.h"
#include "gram.h"
@y
#include <stdio.h>
#include <stdlib.h>
#include "system.h"
#include "ansinew.h"
#include "types.h"
#include "gram.h"
@z

@x l.36
set_derives()
@y
set_derives(void)
@z

@x l.85
free_derives()
@y
free_derives(void)
@z

@x l.95
print_derives()
@y
void print_derives(void)
@z