ddd-3.3.12-rc1 segv at start up

with ddd-3.3.12-rc1 and lesstif-0.95.0  I get, on start up,

Warning: This DDD requires a Motif 2.2 library (using Motif 2.1)
Continue at own risk.
Warning: Cannot find callback list in XtAddCallback
(Annoyed?  Try 'Edit->Preferences->General->Suppress X Warnings'!)
Warning: Cannot find callback list in XtAddCallback

followed by a SEGV.

Here is a stack trace
#0  0x000000000044718c in ComboBoxTop (text=<value optimized out>)
    at ComboBox.C:253
#1  0x000000000053e626 in create_toolbar (parent=0x923a10, items1=0x7a58a0,
    items2=0x7be080, label=@0x7fbfffec60, argfield=@0x7c5f98,
    label_type=1 '\001') at toolbar.C:257
#2  0x0000000000427c6b in pre_main_loop (argc=1, argv=<value optimized out>)
    at ddd.C:2657
#3  0x0000000000428239 in main (argc=9634496, argv=0x9302c0) at ddd.C:3165

Any help?

Mathew