remove support for non-ANSI compilation

*** 18,27 ****
--- 18,29 ----
   *
   * CDDL HEADER END
   */
  
  /*
+  * Copyright 2014 Garrett D'Amore <garrett@damore.org>
+  *
   * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
  /*      Copyright (c) 1988 AT&T */
*** 28,39 ****
  /*        All Rights Reserved   */
  
  #ifndef _DIRENT_H
  #define _DIRENT_H
  
- #pragma ident   "%Z%%M% %I%     %E% SMI"        /* SVr4.0 1.6.1.5   */
- 
  #include <sys/feature_tests.h>
  
  #include <sys/types.h>
  #include <sys/dirent.h>
  
--- 30,39 ----
*** 67,78 ****
          char    *d_buf;         /* directory block */
  } DIR;                          /* stream data from opendir() */
  
  #endif /* !defined(__XOPEN_OR_POSIX) */
  
- #if defined(__STDC__)
- 
  /* large file compilation environment setup */
  #if !defined(_LP64) && _FILE_OFFSET_BITS == 64
  #ifdef __PRAGMA_REDEFINE_EXTNAME
  #pragma redefine_extname        readdir readdir64
  #pragma redefine_extname        scandir scandir64
--- 67,76 ----
*** 131,167 ****
                                  const struct dirent64 **));
  extern int      alphasort64(const struct dirent64 **, const struct dirent64 **);
  #endif /* defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX) */
  #endif
  
- #else
- 
- extern DIR              *opendir();
- #if defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX) || \
-         defined(_ATFILE_SOURCE)
- extern DIR              *fdopendir();
- extern int              dirfd();
- #endif /* defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX) ... */
- extern struct dirent    *readdir();
  #if defined(__EXTENSIONS__) || !defined(_POSIX_C_SOURCE) || \
          defined(_XOPEN_SOURCE)
- extern long             telldir();
- extern void             seekdir();
- #endif /* defined(__EXTENSIONS__) || !defined(_POSIX_C_SOURCE) ... */
- extern void             rewinddir();
- extern int              closedir();
- 
- /* transitional large file interface */
- #if     defined(_LARGEFILE64_SOURCE) && !((_FILE_OFFSET_BITS == 64) && \
-             !defined(__PRAGMA_REDEFINE_EXTNAME))
- extern struct dirent64  *readdir64();
- #endif
- 
- #endif
- 
- #if defined(__EXTENSIONS__) || !defined(_POSIX_C_SOURCE) || \
-         defined(_XOPEN_SOURCE)
  #define rewinddir(dirp) seekdir(dirp, 0L)
  #endif
  
  /*
   * readdir_r() prototype is defined here.
--- 129,140 ----
*** 180,191 ****
  
  #if     defined(__EXTENSIONS__) || defined(_REENTRANT) || \
          !defined(__XOPEN_OR_POSIX) || (_POSIX_C_SOURCE - 0 >= 199506L) || \
          defined(_POSIX_PTHREAD_SEMANTICS)
  
- #if     defined(__STDC__)
- 
  #if     !defined(_LP64) && _FILE_OFFSET_BITS == 32
  
  #if     (_POSIX_C_SOURCE - 0 >= 199506L) || defined(_POSIX_PTHREAD_SEMANTICS)
  
  #ifdef  __PRAGMA_REDEFINE_EXTNAME
--- 153,162 ----
*** 241,310 ****
  /* transitional large file interface */
  extern int readdir64_r(DIR *_RESTRICT_KYWD, struct dirent64 *_RESTRICT_KYWD,
          struct dirent64 **_RESTRICT_KYWD);
  #endif
  
- #else  /* __STDC__ */
- 
- #if     !defined(_LP64) && _FILE_OFFSET_BITS == 32
- 
- #if     (_POSIX_C_SOURCE - 0 >= 199506L) || defined(_POSIX_PTHREAD_SEMANTICS)
- 
- #ifdef __PRAGMA_REDEFINE_EXTNAME
- #pragma redefine_extname readdir_r __posix_readdir_r
- extern int readdir_r();
- #else  /* __PRAGMA_REDEFINE_EXTNAME */
- 
- extern int __posix_readdir_r();
- 
- #ifdef  __lint
- #define readdir_r __posix_readdir_r
- #else   /* !__lint */
- 
- static int
- readdir_r(DIR *_RESTRICT_KYWD __dp, struct dirent *_RESTRICT_KYWD __ent,
-         struct dirent **_RESTRICT_KYWD __res)
- {
-         return (__posix_readdir_r(__dp, __ent, __res));
- }
- 
- #endif /* !__lint */
- #endif /* __PRAGMA_REDEFINE_EXTNAME */
- 
- #else  /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */
- 
- extern struct dirent *readdir_r();
- 
- #endif /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */
- 
- #else   /* !_LP64 && _FILE_OFFSET_BITS == 32 */
- 
- #if defined(_LP64)
- #ifdef  __PRAGMA_REDEFINE_EXTNAME
- #pragma redefine_extname readdir64_r    readdir_r
- #else
- #define readdir64_r     readdir
- #endif
- #else   /* _LP64 */
- #ifdef  __PRAGMA_REDEFINE_EXTNAME
- #pragma redefine_extname readdir_r readdir64_r
- #else
- #define readdir_r readdir64_r
- #endif
- #endif  /* _LP64 */
- extern int      readdir_r();
- 
- #endif  /* !_LP64 && _FILE_OFFSET_BITS == 32 */
- 
- #if     defined(_LARGEFILE64_SOURCE) && !((_FILE_OFFSET_BITS == 64) && \
-             !defined(__PRAGMA_REDEFINE_EXTNAME))
- /* transitional large file interface */
- extern int      readdir64_r();
- #endif
- 
- #endif /* __STDC__ */
- 
  #endif /* defined(__EXTENSIONS__) || defined(_REENTRANT)... */
  
  #ifdef  __cplusplus
  }
  #endif
--- 212,221 ----