X11 Athena Widget library (development headers) libxaw-headers provides common development headers for libXaw versions 6 and 7; please see libxaw6-dev and libxaw7-dev for more information. Note that libxaw7-dev is recommended over libxaw6-dev, but in general, use of a more modern toolkit such as GTK+ is recommended. More information about X.Org can be found at: <URL:http://xorg.freedesktop.org> <URL:http://lists.freedesktop.org/mailman/listinfo/xorg>