-WX_ARG_ENABLE(intl, [ --enable-intl use internationalization system], wxUSE_INTL)
-WX_ARG_ENABLE(config, [ --enable-config use wxConfig (and derived) classes], wxUSE_CONFIG)
-WX_ARG_ENABLE(sockets, [ --enable-sockets use socket/network classes], wxUSE_SOCKETS)
-WX_ARG_ENABLE(ipc, [ --enable-ipc use interprocess communication (wxSocket etc.)], wxUSE_IPC)
-WX_ARG_ENABLE(apple_ieee, [ --enable-apple_ieee use the Apple IEEE codec], wxUSE_APPLE_IEEE)
-WX_ARG_ENABLE(timedate, [ --enable-timedate use date/time classes], wxUSE_TIMEDATE)
-WX_ARG_ENABLE(wave, [ --enable-wave use wxWave class], wxUSE_WAVE)
-WX_ARG_ENABLE(fraction, [ --enable-fraction use wxFraction class], wxUSE_FRACTION)
-WX_ARG_ENABLE(dynlib, [ --enable-dynlib use wxLibrary class for DLL loading], wxUSE_DYNLIB_CLASS)
-WX_ARG_ENABLE(longlong, [ --enable-longlong use wxLongLong class], wxUSE_LONGLONG)
-WX_ARG_ENABLE(log, [ --enable-log use logging system], wxUSE_LOG)
-WX_ARG_ENABLE(streams, [ --enable-streams use wxStream etc classes], wxUSE_STREAMS)
-WX_ARG_ENABLE(file, [ --enable-file use wxFile classes], wxUSE_FILE)
-WX_ARG_ENABLE(textfile, [ --enable-textfile use wxTextFile classes], wxUSE_TEXTFILE)
-WX_ARG_ENABLE(unicode, [ --enable-unicode compile wxString with Unicode support], wxUSE_UNICODE)
-WX_ARG_ENABLE(wcsrtombs, [ --enable-wcsrtombs use wcsrtombs instead of buggy (GNU libc1/Linux libc5) wcstombs], wxUSE_WCSRTOMBS)
-WX_ARG_ENABLE(wxprintfv, [ --enable-wxprintfv use wxWindows implementation of vprintf()], wxUSE_EXPERIMENTAL_PRINTF)
-WX_ARG_ENABLE(joystick, [ --enable-joystick compile in joystick support (Linux only)], wxUSE_JOYSTICK)
+WX_ARG_ENABLE(intl, [ --enable-intl use internationalization system], wxUSE_INTL)
+WX_ARG_ENABLE(config, [ --enable-config use wxConfig (and derived) classes], wxUSE_CONFIG)
+WX_ARG_ENABLE(sockets, [ --enable-sockets use socket/network classes], wxUSE_SOCKETS)
+WX_ARG_ENABLE(ipc, [ --enable-ipc use interprocess communication (wxSocket etc.)], wxUSE_IPC)
+WX_ARG_ENABLE(apple_ieee, [ --enable-apple_ieee use the Apple IEEE codec], wxUSE_APPLE_IEEE)
+WX_ARG_ENABLE(timedate, [ --enable-timedate use date/time classes], wxUSE_TIMEDATE)
+WX_ARG_ENABLE(wave, [ --enable-wave use wxWave class], wxUSE_WAVE)
+WX_ARG_ENABLE(fraction, [ --enable-fraction use wxFraction class], wxUSE_FRACTION)
+WX_ARG_ENABLE(dynlib, [ --enable-dynlib use wxLibrary class for DLL loading], wxUSE_DYNLIB_CLASS)
+WX_ARG_ENABLE(longlong, [ --enable-longlong use wxLongLong class], wxUSE_LONGLONG)
+WX_ARG_ENABLE(log, [ --enable-log use logging system], wxUSE_LOG)
+WX_ARG_ENABLE(streams, [ --enable-streams use wxStream etc classes], wxUSE_STREAMS)
+WX_ARG_ENABLE(file, [ --enable-file use wxFile classes], wxUSE_FILE)
+WX_ARG_ENABLE(textfile, [ --enable-textfile use wxTextFile classes], wxUSE_TEXTFILE)
+WX_ARG_ENABLE(unicode, [ --enable-unicode compile wxString with Unicode support], wxUSE_UNICODE)
+WX_ARG_ENABLE(wcsrtombs, [ --enable-wcsrtombs use wcsrtombs instead of buggy (GNU libc1/Linux libc5) wcstombs], wxUSE_WCSRTOMBS)
+WX_ARG_ENABLE(wxprintfv, [ --enable-wxprintfv use wxWindows implementation of vprintf()], wxUSE_EXPERIMENTAL_PRINTF)
+WX_ARG_ENABLE(joystick, [ --enable-joystick compile in joystick support (Linux only)], wxUSE_JOYSTICK)
+WX_ARG_ENABLE(std_iostreams, [ --enable-std_iostreams use standard C++ stream classes], wxUSE_STD_IOSTREAM)
+WX_ARG_ENABLE(fs_inet, [ --enable-fs_inet use virtual HTTP/FTP filesystems], wxUSE_FS_INET)
+WX_ARG_ENABLE(fs_zip, [ --enable-fs_zip use virtual ZIP filesystems], wxUSE_FS_ZIP)
+WX_ARG_ENABLE(zipstream, [ --enable-zipstream use wxZipInputStream], wxUSE_ZIPSTREAM)