diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index f9f4aeab0..1a8de02ff 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,7 @@
+2007-05-21  Eric Blake  <ebb9@byu.net>
+
+	* include/search.h (hsearch_r): Provide declaration.
+
 2007-05-21  Christian Franke <franke@computer.org>
 	    Corinna Vinschen  <corinna@vinschen.de>
 
diff --git a/winsup/cygwin/include/search.h b/winsup/cygwin/include/search.h
index a1ccfe2aa..bfadb23e0 100644
--- a/winsup/cygwin/include/search.h
+++ b/winsup/cygwin/include/search.h
@@ -57,6 +57,7 @@ void  hdestroy (void);
 ENTRY *hsearch (ENTRY, ACTION);
 int hcreate_r (size_t, struct hsearch_data *);
 void hdestroy_r (struct hsearch_data *);
+int hsearch_r (ENTRY, ACTION, ENTRY **, struct hsearch_data *);
 void *tdelete (const void * __restrict, void ** __restrict,
 	       int (*) (const void *, const void *));
 void tdestroy (void *, void (*)(void *));