remove support for non-ANSI compilation

*** 17,26 ****
--- 17,28 ----
   * information: Portions Copyright [yyyy] [name of copyright owner]
   *
   * CDDL HEADER END
   */
  /*
+  * Copyright 2014 Garrett D'Amore <garrett@damore.org>
+  *
   * Copyright (c) 1989, 2010, Oracle and/or its affiliates. All rights reserved.
   */
  
  /*      Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T     */
  /*        All Rights Reserved   */
*** 520,530 ****
  #define listen  __xnet_listen
  #endif  /* __PRAGMA_REDEFINE_EXTNAME */
  #endif /* (_XPG4_2) && !defined(_XPG5) */
  
  #if !defined(_KERNEL) || defined(_BOOT)
- #ifdef  __STDC__
  extern int accept(int, struct sockaddr *_RESTRICT_KYWD, Psocklen_t);
  extern int accept4(int, struct sockaddr *_RESTRICT_KYWD, Psocklen_t, int);
  extern int bind(int, const struct sockaddr *, socklen_t);
  extern int connect(int, const struct sockaddr *, socklen_t);
  extern int getpeername(int, struct sockaddr *_RESTRICT_KYWD, Psocklen_t);
--- 522,531 ----
*** 545,575 ****
  extern int socket(int, int, int);
  
  #if !defined(_XPG4_2) || defined(_XPG6) || defined(__EXTENSIONS__)
  extern int sockatmark(int);
  #endif /* !defined(_XPG4_2) || defined(_XPG6) || defined(__EXTENSIONS__) */
- #else   /* __STDC__ */
- extern int accept();
- extern int accept4();
- extern int bind();
- extern int connect();
- extern int getpeername();
- extern int getsockname();
- extern int getsockopt();
- extern int listen();
- extern int recv();
- extern int recvfrom();
- extern int send();
- extern int sendto();
- extern int setsockopt();
- extern int sockatmark();
- extern int socket();
- extern int recvmsg();
- extern int sendmsg();
- extern int shutdown();
- extern int socketpair();
- #endif  /* __STDC__ */
  #endif  /* !defined(_KERNEL) || defined(_BOOT) */
  
  #ifdef  __cplusplus
  }
  #endif
--- 546,555 ----