Small fixes for Tex2RTF but alas, we still get memory problems.

Added wxUSE_MFC setting (doesn't include windows.h, removes own memory
tracing); added include <ctype.h> in case where PCH isn't used;
wxExit now exits :-)


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@6587 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/wxprec.h

@@ -28,7 +28,7 @@
 #ifdef WX_PRECOMP
 
 // include standard Windows headers
-#ifdef __WXMSW__
+#if defined(__WXMSW__) && !wxUSE_MFC
     #include <windows.h>
     #include "wx/msw/winundef.h"
 #endif