diff --git a/libc/include/search.h b/libc/include/search.h
new file mode 100644
index 0000000..ed0d216
--- /dev/null
+++ b/libc/include/search.h
@@ -0,0 +1,46 @@
+/*-
+ * Written by J.T. Conklin <jtc@netbsd.org>
+ * Public domain.
+ *
+ *	$NetBSD: search.h,v 1.12 1999/02/22 10:34:28 christos Exp $
+ * $FreeBSD: release/9.0.0/include/search.h 105250 2002-10-16 14:29:23Z robert $
+ */
+
+#ifndef _SEARCH_H_
+#define _SEARCH_H_
+
+#include <sys/cdefs.h>
+#include <sys/_types.h>
+
+#if 0
+#ifndef _SIZE_T_DECLARED
+typedef	__size_t	size_t;
+#define	_SIZE_T_DECLARED
+#endif
+#endif
+
+typedef	enum {
+	preorder,
+	postorder,
+	endorder,
+	leaf
+} VISIT;
+
+#ifdef _SEARCH_PRIVATE
+typedef	struct node {
+	char         *key;
+	struct node  *llink, *rlink;
+} node_t;
+#endif
+
+__BEGIN_DECLS
+void	*tdelete(const void * __restrict, void ** __restrict,
+	    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));
+void	 tdestroy(void *, void (*)(void *));
+__END_DECLS
+
+#endif /* !_SEARCH_H_ */