(svn r11787) -Codechange: more header rewrites. This time related to viewport.h.

src/signs_gui.cpp

@@ -18,6 +18,8 @@
 #include "core/alloc_func.hpp"
 #include "window_func.h"
 #include "map_func.h"
+#include "gfx_func.h"
+#include "viewport_func.h"
 
 static const Sign **_sign_sort;
 static uint _num_sign_sort;