General tidy-up (mainly typecasts) to allow the use of the SGI native

compilers (tested on Irix 6.5 with -mips3 -n32).


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@623 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/gtk/cursor.cpp

@@ -31,7 +31,7 @@ class wxCursorRefData: public wxObjectRefData
 
 wxCursorRefData::wxCursorRefData(void)
 {
-  m_cursor = NULL;
+  m_cursor = (GdkCursor *) NULL;
 }
 
 wxCursorRefData::~wxCursorRefData(void)