[MacPorts] #50463: ddd @3.3.12: Xt error (Unresolved inheritance operation)

[MacPorts]

#50463: ddd @3.3.12: Xt error (Unresolved inheritance operation)
----------------------------------------------+----------------------------
  Reporter:  ewout+keyword+macports.8d331b@…  |      Owner:  macports-
                                              |  tickets@…
      Type:  defect                           |     Status:  new
  Priority:  Normal                           |  Milestone:
 Component:  ports                            |    Version:  2.3.4
Resolution:                                   |   Keywords:
      Port:  ddd                              |
----------------------------------------------+----------------------------

Comment (by ryandesign):

 [https://lists.gnu.org/archive/html/ddd/2019-01/msg00002.html Here's a
 good summary from Tim Mooney]:

 > ddd hasn't had anyone actively maintaining it for many years, so
 although
 > it's still packaged in brew for Mac and in various package formats for
 > different Linux distributions, it doesn't work reliably for many users.
 > I'm actually really surprised it still compiles on so many different
 systems.
 >
 > ddd was written in the 90s and was designed to use the Motif graphical
 > toolkit.  In the intervening time, the C++ language has changed, the
 Motif
 > toolkit has advanced (and is now opensource), and even the underlying X
 > toolkit has changed.
 >
 > The "Unresolved inheritance operation" is happening because of one of
 > those changes.  It's possible that an expert in C++ and either X or
 Motif
 > (Motif experts are becoming exceedingly rare, sadly) could diagnose the
 > problem and maybe even easily fix it, but no one has invested the time
 to
 > do so.
 >
 > Since ddd probably isn't going to work for you, your best bet is to
 learn
 > the commands you need to directly interact with the underlying debugger
 > (what DDD documentation calls the "inferior" debugger).
 >
 > Good luck!

-- 
Ticket URL: <https://trac.macports.org/ticket/50463#comment:9>
MacPorts <https://www.macports.org/>
Ports system for macOS