The GNU Emacs editor is offered in 3 flavors:

  * athena : based on the Athena toolkit
  * gtk    : based on the GTK toolkit
  * nox    : without any XWindows dependencies

You can easily select between the versions with the alternatives(8)
system by executing:

  /opt/csw/sbin/alternatives --config emacs

See http://wiki.opencsw.org/alternatives-package for further details.