remove support for non-ANSI compilation

*** 18,27 ****
--- 18,29 ----
   * information: Portions Copyright [yyyy] [name of copyright owner]
   *
   * CDDL HEADER END
   */
  /*
+  * Copyright 2014 Garrett D'Amore <garrett@damore.org>
+  *
   * Copyright 1997 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
  /*      Copyright (c) 1983,1984,1985,1986,1987,1988,1989 AT&T   */
*** 33,44 ****
   */
  
  #ifndef _UTMPX_H
  #define _UTMPX_H
  
- #pragma ident   "%Z%%M% %I%     %E% SMI"
- 
  #include <sys/feature_tests.h>
  #include <sys/types.h>
  #include <sys/time.h>
  #include <utmp.h>
  
--- 35,44 ----
*** 125,136 ****
  #define nonuserx(utx)   ((utx).ut_exit.e_exit == NONROOT_USRX ? 1 : 0)
  #define setuserx(utx)   ((utx).ut_exit.e_exit = NONROOT_USRX)
  
  #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
  
- #if defined(__STDC__)
- 
  extern void endutxent(void);
  extern struct utmpx *getutxent(void);
  extern struct utmpx *getutxid(const struct utmpx *);
  extern struct utmpx *getutxline(const struct utmpx *);
  extern struct utmpx *pututxline(const struct utmpx *);
--- 125,134 ----
*** 144,174 ****
  extern void getutmpx(const struct utmp *, struct utmpx *);
  extern void updwtmp(const char *, struct utmp *);
  extern void updwtmpx(const char *, struct utmpx *);
  #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
  
- #else /* __STDC__ */
- 
- extern void endutxent();
- extern struct utmpx *getutxent();
- extern struct utmpx *getutxid();
- extern struct utmpx *getutxline();
- extern struct utmpx *pututxline();
- extern void setutxent();
- 
- #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
- extern int utmpxname();
- extern struct utmpx *makeutx();
- extern struct utmpx *modutx();
- extern void getutmp();
- extern void getutmpx();
- extern void updwtmp();
- extern void updwtmpx();
- #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
- 
- #endif /* __STDC__ */
- 
  #ifdef  __cplusplus
  }
  #endif
  
  #endif  /* _UTMPX_H */
--- 142,151 ----