wxBase build fix.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@38020 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/msw/wrapcctl.h

@@ -49,10 +49,12 @@ inline void wxSetCCUnicodeFormat(HWND WXUNUSED_IN_WINCE(hwnd))
 #endif // __WXWINCE__/!__WXWINCE__
 }
 
+#if wxUSE_GUI
 // Return the default font for the common controls
 //
 // this is implemented in msw/settings.cpp
 extern wxFont wxGetCCDefaultFont();
+#endif
 
 #endif // _WX_MSW_WRAPCCTL_H_