ANSI C fixes.
Removed warnings.
Made the include files self-sufficient.
Some Solaris fixes.

diff --git a/controls/uitools.c b/controls/uitools.c
index b7251d5..b0aa3aa 100644
--- a/controls/uitools.c
+++ b/controls/uitools.c
@@ -5,6 +5,7 @@
  * Copyright 1997 Bertho A. Stultiens
  */
 
+#include "wine/winuser16.h"
 #include "winuser.h"
 #include "debugtools.h"