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diff --git a/i686-linux-gnu-4.7/usr/include/search.h b/i686-linux-gnu-4.7/usr/include/search.h
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+/* Declarations for System V style searching functions.
+   Copyright (C) 1995-2018 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef _SEARCH_H
+#define	_SEARCH_H 1
+
+#include <features.h>
+
+#define __need_size_t
+#include <stddef.h>
+
+__BEGIN_DECLS
+
+#if defined __USE_MISC || defined __USE_XOPEN_EXTENDED
+/* Prototype structure for a linked-list data structure.
+   This is the type used by the `insque' and `remque' functions.  */
+
+# ifdef __USE_GNU
+struct qelem
+  {
+    struct qelem *q_forw;
+    struct qelem *q_back;
+    char q_data[1];
+  };
+# endif
+
+
+/* Insert ELEM into a doubly-linked list, after PREV.  */
+extern void insque (void *__elem, void *__prev) __THROW;
+
+/* Unlink ELEM from the doubly-linked list that it is in.  */
+extern void remque (void *__elem) __THROW;
+#endif
+
+
+/* For use with hsearch(3).  */
+#ifndef __COMPAR_FN_T
+# define __COMPAR_FN_T
+typedef int (*__compar_fn_t) (const void *, const void *);
+
+# ifdef	__USE_GNU
+typedef __compar_fn_t comparison_fn_t;
+# endif
+#endif
+
+/* Action which shall be performed in the call the hsearch.  */
+typedef enum
+  {
+    FIND,
+    ENTER
+  }
+ACTION;
+
+typedef struct entry
+  {
+    char *key;
+    void *data;
+  }
+ENTRY;
+
+/* Opaque type for internal use.  */
+struct _ENTRY;
+
+/* Family of hash table handling functions.  The functions also
+   have reentrant counterparts ending with _r.  The non-reentrant
+   functions all work on a signle internal hashing table.  */
+
+/* Search for entry matching ITEM.key in internal hash table.  If
+   ACTION is `FIND' return found entry or signal error by returning
+   NULL.  If ACTION is `ENTER' replace existing data (if any) with
+   ITEM.data.  */
+extern ENTRY *hsearch (ENTRY __item, ACTION __action) __THROW;
+
+/* Create a new hashing table which will at most contain NEL elements.  */
+extern int hcreate (size_t __nel) __THROW;
+
+/* Destroy current internal hashing table.  */
+extern void hdestroy (void) __THROW;
+
+#ifdef __USE_GNU
+/* Data type for reentrant functions.  */
+struct hsearch_data
+  {
+    struct _ENTRY *table;
+    unsigned int size;
+    unsigned int filled;
+  };
+
+/* Reentrant versions which can handle multiple hashing tables at the
+   same time.  */
+extern int hsearch_r (ENTRY __item, ACTION __action, ENTRY **__retval,
+		      struct hsearch_data *__htab) __THROW;
+extern int hcreate_r (size_t __nel, struct hsearch_data *__htab) __THROW;
+extern void hdestroy_r (struct hsearch_data *__htab) __THROW;
+#endif
+
+
+/* The tsearch routines are very interesting. They make many
+   assumptions about the compiler.  It assumes that the first field
+   in node must be the "key" field, which points to the datum.
+   Everything depends on that.  */
+/* For tsearch */
+typedef enum
+{
+  preorder,
+  postorder,
+  endorder,
+  leaf
+}
+VISIT;
+
+/* Search for an entry matching the given KEY in the tree pointed to
+   by *ROOTP and insert a new element if not found.  */
+extern void *tsearch (const void *__key, void **__rootp,
+		      __compar_fn_t __compar);
+
+/* Search for an entry matching the given KEY in the tree pointed to
+   by *ROOTP.  If no matching entry is available return NULL.  */
+extern void *tfind (const void *__key, void *const *__rootp,
+		    __compar_fn_t __compar);
+
+/* Remove the element matching KEY from the tree pointed to by *ROOTP.  */
+extern void *tdelete (const void *__restrict __key,
+		      void **__restrict __rootp,
+		      __compar_fn_t __compar);
+
+#ifndef __ACTION_FN_T
+# define __ACTION_FN_T
+typedef void (*__action_fn_t) (const void *__nodep, VISIT __value,
+			       int __level);
+#endif
+
+/* Walk through the whole tree and call the ACTION callback for every node
+   or leaf.  */
+extern void twalk (const void *__root, __action_fn_t __action);
+
+#ifdef __USE_GNU
+/* Callback type for function to free a tree node.  If the keys are atomic
+   data this function should do nothing.  */
+typedef void (*__free_fn_t) (void *__nodep);
+
+/* Destroy the whole tree, call FREEFCT for each node or leaf.  */
+extern void tdestroy (void *__root, __free_fn_t __freefct);
+#endif
+
+
+/* Perform linear search for KEY by comparing by COMPAR in an array
+   [BASE,BASE+NMEMB*SIZE).  */
+extern void *lfind (const void *__key, const void *__base,
+		    size_t *__nmemb, size_t __size, __compar_fn_t __compar);
+
+/* Perform linear search for KEY by comparing by COMPAR function in
+   array [BASE,BASE+NMEMB*SIZE) and insert entry if not found.  */
+extern void *lsearch (const void *__key, void *__base,
+		      size_t *__nmemb, size_t __size, __compar_fn_t __compar);
+
+__END_DECLS
+
+#endif /* search.h */