+
+#if WXWIN_COMPATIBILITY_2_4
+# if !WXWIN_COMPATIBILITY_2_6
+# ifdef wxABORT_ON_CONFIG_ERROR
+# error "2.4.X compatibility requires 2.6.X compatibility"
+# else
+# undef WXWIN_COMPATIBILITY_2_6
+# define WXWIN_COMPATIBILITY_2_6 1
+# endif
+# endif
+#endif /* WXWIN_COMPATIBILITY_2_4 */
+
+#if wxUSE_ARCHIVE_STREAMS
+# if !wxUSE_DATETIME
+# ifdef wxABORT_ON_CONFIG_ERROR
+# error "wxArchive requires wxUSE_DATETIME"
+# else
+# undef wxUSE_ARCHIVE_STREAMS
+# define wxUSE_ARCHIVE_STREAMS 0
+# endif
+# endif
+#endif /* wxUSE_ARCHIVE_STREAMS */
+
+#if wxUSE_CRASHREPORT && !wxUSE_ON_FATAL_EXCEPTION
+# ifdef wxABORT_ON_CONFIG_ERROR
+# error "wxUSE_CRASHREPORT requires wxUSE_ON_FATAL_EXCEPTION"
+# else
+# undef wxUSE_CRASHREPORT
+# define wxUSE_CRASHREPORT 0
+# endif
+#endif /* wxUSE_CRASHREPORT */
+
+#if wxUSE_PROTOCOL_FILE || wxUSE_PROTOCOL_FTP || wxUSE_PROTOCOL_HTTP
+# if !wxUSE_PROTOCOL
+# ifdef wxABORT_ON_CONFIG_ERROR
+# error "wxUSE_PROTOCOL_XXX requires wxUSE_PROTOCOL"
+# else
+# undef wxUSE_PROTOCOL
+# define wxUSE_PROTOCOL 1
+# endif
+# endif
+#endif /* wxUSE_PROTOCOL_XXX */
+
+#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_FS_ARCHIVE
+# if !wxUSE_FILESYSTEM
+# ifdef wxABORT_ON_CONFIG_ERROR
+# error "wxArchiveFSHandler requires wxFileSystem"
+# else
+# undef wxUSE_FILESYSTEM
+# define wxUSE_FILESYSTEM 1
+# endif
+# endif
+# if !wxUSE_ARCHIVE_STREAMS
+# ifdef wxABORT_ON_CONFIG_ERROR
+# error "wxArchiveFSHandler requires wxArchive"
+# else
+# undef wxUSE_ARCHIVE_STREAMS
+# define wxUSE_ARCHIVE_STREAMS 1
+# endif
+# endif
+#endif /* wxUSE_FS_ARCHIVE */
+
+#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
+# if !wxUSE_FILE && !wxUSE_FFILE
+# ifdef wxABORT_ON_CONFIG_ERROR
+# error "wxUSE_FILESYSTEM requires either wxUSE_FILE or wxUSE_FFILE"
+# else
+# undef wxUSE_FILE
+# define wxUSE_FILE 1
+# undef wxUSE_FFILE
+# define wxUSE_FFILE 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_ODBC
+# if !wxUSE_DATETIME
+# ifdef wxABORT_ON_CONFIG_ERROR
+# error "wxODBC requires wxUSE_DATETIME"
+# else
+# undef wxUSE_ODBC
+# define wxUSE_ODBC 0
+# endif
+# endif
+#endif /* wxUSE_ODBC */
+
+#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_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_XML */
+
+#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 */
+
+#if wxUSE_TARSTREAM
+# if !wxUSE_ARCHIVE_STREAMS
+# ifdef wxABORT_ON_CONFIG_ERROR
+# error "wxTar requires wxArchive"
+# else
+# undef wxUSE_ARCHIVE_STREAMS
+# define wxUSE_ARCHIVE_STREAMS 1
+# endif
+# endif
+#endif /* wxUSE_TARSTREAM */
+
+/* the rest of the tests is for the GUI settings only */
+#if wxUSE_GUI
+