remove support for non-ANSI compilation

*** 20,40 ****
   * CDDL HEADER END
   */
  /*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
  /*        All Rights Reserved   */
  
- 
  /*
   * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
  #ifndef _SYS_WAIT_H
  #define _SYS_WAIT_H
  
- #pragma ident   "%Z%%M% %I%     %E% SMI"        /* SVr4.0 1.10 */
- 
  #include <sys/feature_tests.h>
  
  #include <sys/types.h>
  
  #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
--- 20,39 ----
   * CDDL HEADER END
   */
  /*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
  /*        All Rights Reserved   */
  
  /*
+  * Copyright 2014 Garrett D'Amore <garrett@damore.org>
+  *
   * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
  #ifndef _SYS_WAIT_H
  #define _SYS_WAIT_H
  
  #include <sys/feature_tests.h>
  
  #include <sys/types.h>
  
  #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
*** 93,103 ****
  #define WTERMSIG(stat)          ((int)((stat)&0x7F))
  #define WSTOPSIG(stat)          ((int)(((stat)>>8)&0xFF))
  
  
  #if !defined(_KERNEL)
- #if defined(__STDC__)
  
  extern pid_t wait(int *);
  extern pid_t waitpid(pid_t, int *, int);
  
  #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
--- 92,101 ----
*** 110,136 ****
  
  #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
  extern pid_t wait4(pid_t, int *, int, struct rusage *);
  #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
  
- #else /* __STDC__ */
- 
- extern pid_t wait();
- extern pid_t waitpid();
- #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
- extern int waitid();
- /* Marked as LEGACY in SUSv2 and removed in SUSv3 */
- #if !defined(_XPG6) || defined(__EXTENSIONS__)
- extern pid_t wait3();
- #endif /* !defined(_XPG6) || defined(__EXTENSIONS__) */
- #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
- 
- #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
- extern pid_t wait4();
- #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
- 
- #endif  /* __STDC__ */
  #endif  /* _KERNEL */
  
  #ifdef  __cplusplus
  }
  #endif
--- 108,117 ----