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_STATVFS_H
  #define _SYS_STATVFS_H
  
- #pragma ident   "%Z%%M% %I%     %E% SMI"        /* SVr4.0 1.10 */
- 
  #include <sys/feature_tests.h>
  #include <sys/types.h>
  
  #ifdef  __cplusplus
  extern "C" {
--- 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_STATVFS_H
  #define _SYS_STATVFS_H
  
  #include <sys/feature_tests.h>
  #include <sys/types.h>
  
  #ifdef  __cplusplus
  extern "C" {
*** 186,206 ****
  #define statvfs64               statvfs
  #define fstatvfs64              fstatvfs
  #endif
  #endif  /* _LP64 && _LARGEFILE64_SOURCE */
  
- #if defined(__STDC__)
  int statvfs(const char *_RESTRICT_KYWD, statvfs_t *_RESTRICT_KYWD);
  int fstatvfs(int, statvfs_t *);
  
  /* transitional large file interface versions */
  #if     defined(_LARGEFILE64_SOURCE) && !((_FILE_OFFSET_BITS == 64) && \
              !defined(__PRAGMA_REDEFINE_EXTNAME))
  int statvfs64(const char *_RESTRICT_KYWD, statvfs64_t *_RESTRICT_KYWD);
  int fstatvfs64(int, statvfs64_t *);
  #endif  /* _LARGEFILE64_SOURCE... */
- #endif  /* defined(__STDC__) */
  #endif  /* !defined(_KERNEL) */
  
  #ifdef  __cplusplus
  }
  #endif
--- 185,203 ----