diff --git a/src/search.h b/src/search.h
deleted file mode 100644
index 8a94ab8..0000000
--- a/src/search.h
+++ /dev/null
@@ -1,15 +0,0 @@
-#if defined(_MSC_VER)
-/* find or insert datum into search tree */
-void *tsearch(const void *vkey, void **vrootp,
-              int (*compar)(const void *, const void *));
-
-/* delete node with given key */
-void * tdelete(const void *vkey, void **vrootp,
-               int (*compar)(const void *, const void *));
-
-/* Walk the nodes of a tree */
-void twalk(const void *vroot, void (*action)(const void *, VISIT, int));
-
-#else
-#include <search.h>
-#endif