Hi !
I noticed a crash in the white_dune application
https://wdune.ourproject.org/
under scientific linux 7.3 when pressing the tab character.
It is the fatal X11 error
XtLib: Object "(null)" does not have windowed ancestor
The problem vanishes, if white_dune if compiled with
lesstif-devel or motif-2.3.7 (from sources).
so long
MUFTI