remove support for non-ANSI compilation

*** 18,27 ****
--- 18,29 ----
   * information: Portions Copyright [yyyy] [name of copyright owner]
   *
   * CDDL HEADER END
   */
  /*
+  * Copyright 2014 Garrett D'Amore <garrett@damore.org>
+  *
   * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
  /*
*** 36,47 ****
   */
  
  #ifndef _ISO_STDIO_C99_H
  #define _ISO_STDIO_C99_H
  
- #pragma ident   "%Z%%M% %I%     %E% SMI"
- 
  #ifdef  __cplusplus
  extern "C" {
  #endif
  
  /*
--- 38,47 ----
*** 69,101 ****
  #define vscanf          _vscanf_c89
  #define vsscanf         _vsscanf_c89
  #endif
  #endif /* !defined(_LP64) && !defined(_LONGLONG_TYPE) */
  
- #ifdef __STDC__
  extern int vfscanf(FILE *_RESTRICT_KYWD, const char *_RESTRICT_KYWD, __va_list);
  extern int vscanf(const char *_RESTRICT_KYWD, __va_list);
  extern int vsscanf(const char *_RESTRICT_KYWD, const char *_RESTRICT_KYWD,
                  __va_list);
- #else
- extern int vfscanf();
- extern int vscanf();
- extern int vsscanf();
- #endif /* __STDC__ */
  #endif /* defined(__EXTENSIONS__) ... */
  #if defined(__EXTENSIONS__) || defined(_STDC_C99) || \
          (!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX)) || \
          defined(_XPG5)
- #ifdef __STDC__
  extern int snprintf(char *_RESTRICT_KYWD, size_t, const char *_RESTRICT_KYWD,
          ...);
  extern int vsnprintf(char *_RESTRICT_KYWD, size_t, const char *_RESTRICT_KYWD,
          __va_list);
- #else
- extern int snprintf();
- extern int vsnprintf();
- #endif /* __STDC__ */
  
  #endif /* defined(__EXTENSIONS__) || defined(_STDC_C99) ... */
  
  #ifdef  __cplusplus
  }
--- 69,90 ----