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1.10 The Role of Freedesktop.org 11
essentially the same product, distributed under different licenses. While the Open
Group Public License does permit OpenMotif to be freely distributed, this is for use
only with open source operating systems such as FreeBSD or Linux, so the license
does not meet the Open Source Definition (http://opensource.org/docs/osd) or the
Debian Free Software Guidelines (DFSG, http://www.debian.org/social_
contract#guidelines). Therefore, Motif is not included in most open source operating
systems. The Open Group has stated that it intends to switch to a more open license,
but it has been slow to do so; meanwhile, the LessTif project (http://www.lesstif.org)
has reimplemented most of Motif??™s functionality under the GPL.
Motif is the last widely used toolkit based upon the X Intrinsics Toolkit (Xt), an
object-oriented library written in C. In addition to Motif, there were widget (userinterface
object) sets from the Athena project (Xaw), 3D versions of the Athena widgets
(Xaw3d), Sun??™s OpenLook (Olit), Motif-OpenLook crossover widgets (Moolit),
and others. All of these have fallen into disuse, but you may encounter them in older
programs from time to time.
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