Coredump on shift-MB from read-only source

[Scott Tringali]

Duane Clark wrote:

> I believe there has been an incompatibility introduced between the real 
> Motif and recent versions of 64 bit Xorg. I have mentioned them here 
> before. I don't think this is a bug in nedit (but I don't know that for 
> sure). For me, versions of nedit compiled against Openmotif have 
> copy/paste crashes, but nedit compiled against lesstif does not.

I can repro this under a very old version of X, Motif, and a different X 
server.  I think it's an Xt bug.  There is some code that doesn't check 
for an array sentinel and it just keeps going...