tnchktc
return (tnchktc());
return (tnchktc());
int tnchktc(void);
static int tnchktc(void);
return(tnchktc());
otgetent(char *, char *), tnamatch(char *), tnchktc(void);
return (tnchktc());
int tnchktc(void);
return (tnchktc());