+#if wxUSE_URL
+# if !wxUSE_PROTOCOL
+# ifdef wxABORT_ON_CONFIG_ERROR
+# error "wxUSE_URL requires wxUSE_PROTOCOL"
+# else
+# undef wxUSE_PROTOCOL
+# define wxUSE_PROTOCOL 1
+# endif
+# endif
+#endif /* wxUSE_URL */
+
+#if wxUSE_PROTOCOL
+# if !wxUSE_SOCKETS
+# if wxUSE_PROTOCOL_HTTP || wxUSE_PROTOCOL_FTP
+# ifdef wxABORT_ON_CONFIG_ERROR
+# error "wxUSE_PROTOCOL_FTP/HTTP requires wxUSE_SOCKETS"
+# else
+# undef wxUSE_SOCKETS
+# define wxUSE_SOCKETS 1
+# endif
+# endif
+# endif
+
+# if !wxUSE_STREAMS
+# ifdef wxABORT_ON_CONFIG_ERROR
+# error "wxUSE_PROTOCOL requires wxUSE_STREAMS"
+# else
+# undef wxUSE_STREAMS
+# define wxUSE_STREAMS 1
+# endif
+# endif
+#endif /* wxUSE_PROTOCOL */
+
+/* have to test for wxUSE_HTML before wxUSE_FILESYSTEM */
+#if wxUSE_HTML
+# if !wxUSE_FILESYSTEM
+# ifdef wxABORT_ON_CONFIG_ERROR
+# error "wxHTML requires wxFileSystem"
+# else
+# undef wxUSE_FILESYSTEM
+# define wxUSE_FILESYSTEM 1
+# endif
+# endif
+#endif /* wxUSE_HTML */
+
+#if wxUSE_FILESYSTEM
+# if !wxUSE_STREAMS
+# ifdef wxABORT_ON_CONFIG_ERROR
+# error "wxUSE_FILESYSTEM requires wxUSE_STREAMS"
+# else
+# undef wxUSE_STREAMS
+# define wxUSE_STREAMS 1
+# endif
+# endif
+#endif /* wxUSE_FILESYSTEM */
+
+#if wxUSE_FS_INET
+# if !wxUSE_PROTOCOL
+# ifdef wxABORT_ON_CONFIG_ERROR
+# error "wxUSE_FS_INET requires wxUSE_PROTOCOL"
+# else
+# undef wxUSE_PROTOCOL
+# define wxUSE_PROTOCOL 1
+# endif
+# endif
+#endif /* wxUSE_FS_INET */
+
+#if wxUSE_STOPWATCH || wxUSE_DATETIME
+# if !wxUSE_LONGLONG
+# ifdef wxABORT_ON_CONFIG_ERROR
+# error "wxUSE_STOPWATCH and wxUSE_DATETIME require wxUSE_LONGLONG"
+# else
+# undef wxUSE_LONGLONG
+# define wxUSE_LONGLONG 1
+# endif
+# endif
+#endif /* wxUSE_STOPWATCH */
+
+#if wxUSE_MIMETYPE && !wxUSE_TEXTFILE
+# ifdef wxABORT_ON_CONFIG_ERROR
+# error "wxUSE_MIMETYPE requires wxUSE_TEXTFILE"
+# else
+# undef wxUSE_TEXTFILE
+# define wxUSE_TEXTFILE 1
+# endif
+#endif /* wxUSE_MIMETYPE */
+
+#if wxUSE_TEXTFILE && !wxUSE_TEXTBUFFER
+# ifdef wxABORT_ON_CONFIG_ERROR
+# error "wxUSE_TEXTFILE requires wxUSE_TEXTBUFFER"
+# else
+# undef wxUSE_TEXTBUFFER
+# define wxUSE_TEXTBUFFER 1
+# endif
+#endif /* wxUSE_TEXTFILE */
+
+#if wxUSE_TEXTFILE && !wxUSE_FILE
+# ifdef wxABORT_ON_CONFIG_ERROR
+# error "wxUSE_TEXTFILE requires wxUSE_FILE"
+# else
+# undef wxUSE_FILE
+# define wxUSE_FILE 1
+# endif
+#endif /* wxUSE_TEXTFILE */
+
+#if wxUSE_UNICODE_MSLU && !wxUSE_UNICODE
+# ifdef wxABORT_ON_CONFIG_ERROR
+# error "wxUSE_UNICODE_MSLU requires wxUSE_UNICODE"
+# else
+# undef wxUSE_UNICODE
+# define wxUSE_UNICODE 1
+# endif
+#endif /* wxUSE_UNICODE_MSLU */
+
+/* ODBC and Unicode are now compatible */
+
+#if 0 /* wxUSE_ODBC && wxUSE_UNICODE */
+# ifdef wxABORT_ON_CONFIG_ERROR
+ /* (ODBC classes aren't Unicode-compatible yet) */
+# error "wxUSE_ODBC can't be used with wxUSE_UNICODE"
+# else
+# undef wxUSE_ODBC
+# define wxUSE_ODBC 0
+# endif
+#endif /* wxUSE_ODBC */
+
+#if wxUSE_XML && !wxUSE_WCHAR_T
+# ifdef wxABORT_ON_CONFIG_ERROR
+# error "wxUSE_XML requires wxUSE_WCHAR_T"
+# else
+# undef wxUSE_XML
+# define wxUSE_XML 0
+# endif
+#endif /* wxUSE_UNICODE_MSLU */
+
+#if !wxUSE_DYNLIB_CLASS
+# if wxUSE_DYNAMIC_LOADER
+# ifdef wxABORT_ON_CONFIG_ERROR
+# error "wxUSE_DYNAMIC_LOADER requires wxUSE_DYNLIB_CLASS."
+# else
+# define wxUSE_DYNLIB_CLASS 1
+# endif
+# endif
+#endif /* wxUSE_DYNLIB_CLASS */
+
+#if wxUSE_ZIPSTREAM
+# if !wxUSE_ZLIB
+# ifdef wxABORT_ON_CONFIG_ERROR
+# error "wxZip requires wxZlib"
+# else
+# undef wxUSE_ZLIB
+# define wxUSE_ZLIB 1
+# endif
+# endif
+# if !wxUSE_ARCHIVE_STREAMS
+# ifdef wxABORT_ON_CONFIG_ERROR
+# error "wxZip requires wxArchive"
+# else
+# undef wxUSE_ARCHIVE_STREAMS
+# define wxUSE_ARCHIVE_STREAMS 1
+# endif
+# endif
+#endif /* wxUSE_ZIPSTREAM */
+
+/* the rest of the tests is for the GUI settings only */
+#if wxUSE_GUI
+
+#if wxUSE_BUTTON || \
+ wxUSE_CALENDARCTRL || \
+ wxUSE_CARET || \
+ wxUSE_COMBOBOX || \
+ wxUSE_BMPBUTTON || \
+ wxUSE_CHECKBOX || \
+ wxUSE_CHECKLISTBOX || \
+ wxUSE_CHOICE || \
+ wxUSE_GAUGE || \
+ wxUSE_GRID || \
+ wxUSE_LISTBOX || \
+ wxUSE_LISTCTRL || \
+ wxUSE_NOTEBOOK || \
+ wxUSE_RADIOBOX || \
+ wxUSE_RADIOBTN || \
+ wxUSE_SCROLLBAR || \
+ wxUSE_SLIDER || \
+ wxUSE_SPINBTN || \
+ wxUSE_SPINCTRL || \
+ wxUSE_STATBMP || \
+ wxUSE_STATBOX || \
+ wxUSE_STATLINE || \
+ wxUSE_STATTEXT || \
+ wxUSE_STATUSBAR || \
+ wxUSE_TEXTCTRL || \
+ wxUSE_TOOLBAR || \
+ wxUSE_TREECTRL
+# if !wxUSE_CONTROLS
+# ifdef wxABORT_ON_CONFIG_ERROR
+# error "wxUSE_CONTROLS unset but some controls used"
+# else
+# undef wxUSE_CONTROLS
+# define wxUSE_CONTROLS 1
+# endif
+# endif
+#endif /* controls */
+
+#if wxUSE_BMPBUTTON
+# if !wxUSE_BUTTON
+# ifdef wxABORT_ON_CONFIG_ERROR
+# error "wxUSE_BMPBUTTON requires wxUSE_BUTTON"
+# else
+# undef wxUSE_BUTTON
+# define wxUSE_BUTTON 1
+# endif
+# endif
+#endif /* wxUSE_BMPBUTTON */
+
+#if wxUSE_NOTEBOOK || wxUSE_LISTBOOK || wxUSE_CHOICEBOOK
+# if defined(wxUSE_BOOKCTRL) && !wxUSE_BOOKCTRL
+# ifdef wxABORT_ON_CONFIG_ERROR
+# error "wxUSE_BOOKCTRL must be set."
+# else
+# undef wxUSE_BOOKCTRL
+# endif
+# endif
+
+# ifndef wxUSE_BOOKCTRL
+# define wxUSE_BOOKCTRL 1
+# endif
+#endif /* wxUSE_NOTEBOOK */
+
+#if wxUSE_LISTBOOK
+# if !wxUSE_LISTCTRL
+# ifdef wxABORT_ON_CONFIG_ERROR
+# error "wxListbook requires wxListCtrl"
+# else
+# undef wxUSE_LISTCTRL
+# define wxUSE_LISTCTRL 1
+# endif
+# endif
+#endif /* wxUSE_LISTBOOK */
+
+#if wxUSE_CHOICEBOOK
+# if !wxUSE_CHOICE
+# ifdef wxABORT_ON_CONFIG_ERROR
+# error "wxChoicebook requires wxChoice"
+# else
+# undef wxUSE_CHOICE
+# define wxUSE_CHOICE 1
+# endif
+# endif
+#endif /* wxUSE_CHOICEBOOK */
+
+/* don't attempt to use native status bar on the platforms not having it */
+#ifndef wxUSE_NATIVE_STATUSBAR
+# define wxUSE_NATIVE_STATUSBAR 0
+#elif wxUSE_NATIVE_STATUSBAR
+# if defined(__WXUNIVERSAL__) || !( defined(__WXMSW__) || \
+ defined(__WXMAC__) || \
+ defined(__WXPALMOS__) )
+# undef wxUSE_NATIVE_STATUSBAR
+# define wxUSE_NATIVE_STATUSBAR 0
+# endif
+#endif
+
+/* wxUniv-specific dependencies */
+#if defined(__WXUNIVERSAL__)
+# if (wxUSE_COMBOBOX || wxUSE_MENUS) && !wxUSE_POPUPWIN
+# ifdef wxABORT_ON_CONFIG_ERROR
+# error "wxUSE_POPUPWIN must be defined to use comboboxes/menus"
+# else
+# undef wxUSE_POPUPWIN
+# define wxUSE_POPUPWIN 1
+# endif
+# endif
+
+# if wxUSE_COMBOBOX