remove support for non-ANSI compilation

*** 18,27 ****
--- 18,29 ----
   *
   * CDDL HEADER END
   */
  
  /*
+  * Copyright 2014 Garrett D'Amore <garrett@damore.org>
+  *
   * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
  /*      Copyright (c) 1988 AT&T */
*** 28,39 ****
  /*        All Rights Reserved   */
  
  #ifndef _FCNTL_H
  #define _FCNTL_H
  
- #pragma ident   "%Z%%M% %I%     %E% SMI"        /* SVr4.0 1.6.1.7 */
- 
  #include <sys/feature_tests.h>
  #if defined(__EXTENSIONS__) || defined(_XPG4)
  #include <sys/stat.h>
  #endif
  #include <sys/types.h>
--- 30,39 ----
*** 126,137 ****
  #define attropen64                      attropen
  #endif /* defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX) ... */
  #endif
  #endif  /* _LP64 && _LARGEFILE64_SOURCE */
  
- #if defined(__STDC__)
- 
  extern int fcntl(int, int, ...);
  extern int open(const char *, int, ...);
  extern int creat(const char *, mode_t);
  #if !defined(__XOPEN_OR_POSIX) || defined(_XPG6) || defined(__EXTENSIONS__)
  extern int posix_fadvise(int, off_t, off_t, int);
--- 126,135 ----
*** 160,206 ****
  extern int openat64(int, const char *, int, ...);
  extern int attropen64(const char *, const char *, int, ...);
  #endif /* defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX) ... */
  #endif
  
- #else   /* defined(__STDC__) */
- 
- extern int fcntl();
- extern int open();
- extern int creat();
- #if !defined(__XOPEN_OR_POSIX) || defined(_XPG6) || defined(__EXTENSIONS__)
- extern int posix_fadvise();
- extern int posix_fallocate();
- #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG6) || ... */
- #if defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX) || \
-         defined(_ATFILE_SOURCE)
- extern int openat();
- extern int attropen();
- #endif /* defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX) ... */
- 
- #if defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX)
- extern int directio();
- #endif
- 
- /* transitional large file interface versions */
- #if     defined(_LARGEFILE64_SOURCE) && !((_FILE_OFFSET_BITS == 64) && \
-             !defined(__PRAGMA_REDEFINE_EXTNAME))
- extern int open64();
- extern int creat64();
- #if !defined(__XOPEN_OR_POSIX) || defined(_XPG6) || defined(__EXTENSIONS__)
- extern int posix_fadvise64();
- extern int posix_fallocate64();
- #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG6) || ... */
- #if defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX) || \
-         defined(_ATFILE_SOURCE)
- extern int openat64();
- extern int attropen64();
- #endif /* defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX) ... */
- #endif
- 
- #endif  /* defined(__STDC__) */
- 
  #ifdef  __cplusplus
  }
  #endif
  
  #endif  /* _FCNTL_H */
--- 158,167 ----