DDD bug on macosx 10.14.6

[Philippe de Rochambeau]

iMac-de-Philippe:nasm philippe$ ddd memory.asm 

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 <address@hidden>, giving a subject like

    DDD 3.3.12 (i386-apple-darwin18.0.0) 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

iMac-de-Philippe:nasm philippe$