DDD 3.3.12 (i386-apple-darwin16.1.0) gets Xt error

I do the following things on macOS Sierra(12.2.1):
brew tap homebrew/x11
brew install openmotif lesstif
brew link --overwrite openmotif
brew install ddd
brew link --overwrite lesstif


When I run 'ddd' on iTerm2, it produce this error:
Error: Unresolved inheritance operation


Xt error (Unresolved inheritance operation).


Oops!  You have found a bug in DDD.


If you can reproduce this bug, please send a bug report
to <[email protected]>, giving a subject like


    DDD 3.3.12 (i386-apple-darwin16.1.0) gets Xt error


To enable us to fix the bug, you should include the following information:
* What you were doing to get this message.  Report all the facts.
* The contents of the `~/.ddd/log' file as generated by this session.
Please read also the section "Reporting Bugs" in the DDD manual.


We thank you for your support.


ddd: Cannot save options



~/.ddd/log:
GNU DDD 3.3.12 (i386-apple-darwin16.1.0)
Copyright (C) 1995-1999 Technische Universität Braunschweig, Germany.
Copyright (C) 1999-2001 Universität Passau, Germany.
Copyright (C) 2001 Universität des Saarlandes, Germany.
Copyright (C) 2001-2009 Free Software Foundation, Inc.


Compiled with GCC 4.2.1 Compatible Apple LLVM 8.0.0 (clang-800.0.42.1)
Requires X11R6, Xt11R6, Motif 2.3.6 (Motif Version 2.3.6)
Includes XPM 3.4.11, Athena Panner (7000002L), Manual, App defaults, DDD core
Built 2016-10-30 by (unknown).
$  ddd
!  Xt error: Unresolved inheritance operation
!  Xt error
!  Cannot save options



brew config:
HOMEBREW_VERSION: 1.0.9
ORIGIN: https://github.com/Homebrew/brew
HEAD: 8a7317aa8ff5f12067eb65e529a13490bc69deda
Last commit: 24 hours ago
Core tap ORIGIN: https://github.com/Homebrew/homebrew-core
Core tap HEAD: c4db32e225fce25d46489fbe13a1ea489ff9140d
Core tap last commit: 5 hours ago
HOMEBREW_PREFIX: /usr/local
HOMEBREW_REPOSITORY: /usr/local/Homebrew
HOMEBREW_CELLAR: /usr/local/Cellar
HOMEBREW_BOTTLE_DOMAIN: https://homebrew.bintray.com
CPU: quad-core 64-bit sandybridge
Homebrew Ruby: 2.0.0-p648
Clang: 8.0 build 800
Git: 2.10.2 => /usr/local/bin/git
Perl: /usr/local/bin/perl => /usr/local/Cellar/perl/5.24.0_1/bin/perl
Python: /usr/local/bin/python => /usr/local/Cellar/python/2.7.12_2/Frameworks/Python.framework/Versions/2.7/bin/python2.7
Ruby: /usr/local/bin/ruby => /usr/local/Cellar/ruby/2.3.1_2/bin/ruby
Java: 1.7.0_79, 1.6.0_65-b14-468
macOS: 10.12.1-x86_64
Xcode: N/A
CLT: 8.1.0.0.1.1476494586
X11: 2.7.11 => /opt/X11



Thanks for reading!
Mick