Hellow,
I just install DDD on my mac under OS Catalina. Then I type ddd in my
terminal.
I get this error.
bash-3.2$ more ~/.ddd/log
GNU DDD 3.3.12 (i386-apple-darwin15.0.0)
Copyright (C) 1995-1999 Technische Universit<E4>t Braunschweig, Germany.
Copyright (C) 1999-2001 Universit<E4>t Passau, Germany.
Copyright (C) 2001 Universit<E4>t des Saarlandes, Germany.
Copyright (C) 2001-2009 Free Software Foundation, Inc.
Compiled with GCC 4.2.1 Compatible Apple LLVM 7.0.0 (clang-700.0.72)
Requires X11R6, Xt11R6, Motif 2.3.4 (Motif Version 2.3.4)
Includes XPM 3.4.11, Athena Panner (7000002L), Manual, App defaults, DDD
core
Built 2015-11-27 by (unknown).
$ ddd
! Xt error: Unresolved inheritance operation
! Xt error
! Cannot save options