Upgrade to 2.00, which includes several nice new features; including
the ability to open multiple documents, view document outlines,
and support for JBIG2. For better or worse, this now depends on motif.
While I'm here, overhaul the port:
* Group the GNU dependencies.
* USE_MOTIF implies USE_XPM, so bring in the former and remove the latter.
* Add with-x to the configure args to make sure it knows what we're after.
* Install portdocs
* Update and expand pkg-comment and pkg-descr.