remove support for non-ANSI compilation

*** 18,33 ****
   * information: Portions Copyright [yyyy] [name of copyright owner]
   *
   * CDDL HEADER END
   */
  /*
   * Copyright (c) 1995, 1996, by Sun Microsystems, Inc.
   * All rights reserved.
   */
- /*
-  * Copyright 2013 Garrett D'Amore <garrett@damore.org>
-  */
  
  #ifndef _STRINGS_H
  #define _STRINGS_H
  
  #include <sys/types.h>
--- 18,32 ----
   * information: Portions Copyright [yyyy] [name of copyright owner]
   *
   * CDDL HEADER END
   */
  /*
+  * Copyright 2014 Garrett D'Amore <garrett@damore.org>
+  *
   * Copyright (c) 1995, 1996, by Sun Microsystems, Inc.
   * All rights reserved.
   */
  
  #ifndef _STRINGS_H
  #define _STRINGS_H
  
  #include <sys/types.h>
*** 39,50 ****
  
  #ifdef  __cplusplus
  extern "C" {
  #endif
  
- #if defined(__STDC__)
- 
  extern int bcmp(const void *, const void *, size_t);
  extern void bcopy(const void *, void *, size_t);
  extern void bzero(void *, size_t);
  
  extern char *index(const char *, int);
--- 38,47 ----
*** 72,102 ****
  extern int strcasecmp_l(const char *, const char *, locale_t);
  extern int strncasecmp_l(const char *, const char *, size_t, locale_t);
  #endif  /* defined(_XPG7) */
  #endif  /* defined(_XPG4_2) && !defined(__EXTENSIONS__) */
  
- #else
- 
- extern int bcmp();
- extern void bcopy();
- extern void bzero();
- 
- extern char *index();
- extern char *rindex();
- 
- #if defined(_XPG4_2) && !defined(__EXTENSIONS__)
- extern int ffs();
- extern int strcasecmp();
- extern int strncasecmp();
- #if defined(_XPG7)
- extern int strcasecmp_l();
- extern int strncasecmp_l();
- #endif
- #endif /* defined(_XPG4_2) && !defined(__EXTENSIONS__) */
- 
- #endif  /* __STDC__ */
- 
  #ifdef  __cplusplus
  }
  #endif
  
  #endif  /* _STRINGS_H */
--- 69,78 ----