extern int xunlink OF((char *fname));
extern void make_simple_name OF((char *name));
extern char *add_envopt OF((int *argcp, char ***argvp, char *env));
extern int xunlink OF((char *fname));
extern void make_simple_name OF((char *name));
extern char *add_envopt OF((int *argcp, char ***argvp, char *env));