remove support for non-ANSI compilation

*** 20,40 ****
   * CDDL HEADER END
   */
  /*      Copyright (c) 1988 AT&T */
  /*        All Rights Reserved   */
  
- 
  /*
   * Copyright 2003 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
  #ifndef _SEARCH_H
  #define _SEARCH_H
  
- #pragma ident   "%Z%%M% %I%     %E% SMI"        /* SVr4.0 1.3.1.11 */
- 
  #include <sys/feature_tests.h>
  #include <sys/types.h>
  
  #ifdef  __cplusplus
  extern "C" {
--- 20,39 ----
   * CDDL HEADER END
   */
  /*      Copyright (c) 1988 AT&T */
  /*        All Rights Reserved   */
  
  /*
+  * Copyright 2014 Garrett D'Amore <garrett@damore.org>
+  *
   * Copyright 2003 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
  #ifndef _SEARCH_H
  #define _SEARCH_H
  
  #include <sys/feature_tests.h>
  #include <sys/types.h>
  
  #ifdef  __cplusplus
  extern "C" {
*** 50,98 ****
  };
  #endif /* defined(__EXTENSIONS__) || !defined(_XOPEN_SOURCE) */
  
  typedef struct entry { char *key, *data; } ENTRY;
  
- #if defined(__STDC__)
- 
  int hcreate(size_t);
  void hdestroy(void);
  ENTRY *hsearch(ENTRY, ACTION);
  #if defined(__EXTENSIONS__) || !defined(_XOPEN_SOURCE) || defined(_XPG4_2)
  void insque(void *, void *);
  void remque(void *);
  #endif
  
- #else /* defined(__STDC__) */
  
- int hcreate();
- void hdestroy();
- ENTRY *hsearch();
- #if defined(__EXTENSIONS__) || !defined(_XOPEN_SOURCE) || defined(_XPG4_2)
- void insque();
- void remque();
- #endif
- 
- #endif /* defined(__STDC__) */
- 
  /* TSEARCH(3C) */
  typedef enum { preorder, postorder, endorder, leaf } VISIT;
  
- #if defined(__STDC__)
  void *tdelete(const void *_RESTRICT_KYWD, void **_RESTRICT_KYWD,
          int (*)(const void *, const void *));
  void *tfind(const void *, void *const *, int (*)(const void *, const void *));
  void *tsearch(const void *, void **, int (*)(const void *, const void *));
  void twalk(const void *, void (*)(const void *, VISIT, int));
- #else
- void *tdelete();
- void *tfind();
- void *tsearch();
- void twalk();
- #endif
  
- #if defined(__STDC__)
  
  #if defined(__EXTENSIONS__) || !defined(_XOPEN_SOURCE)
  /* BSEARCH(3C) */
  void *bsearch(const void *, const void *, size_t, size_t,
              int (*)(const void *, const void *));
--- 49,76 ----
*** 101,115 ****
  /* LSEARCH(3C) */
  void *lfind(const void *, const void *, size_t *, size_t,
              int (*)(const void *, const void *));
  void *lsearch(const void *, void *, size_t *, size_t,
              int (*)(const void *, const void *));
- #else
- void *bsearch();
- void *lfind();
- void *lsearch();
- #endif
  
  #ifdef  __cplusplus
  }
  #endif
  
--- 79,88 ----