Gregory McGarry pointed out;

	[ lld cann't find X library compontents in /usr/X11R6.3/lib ]

It's a bug of ldd persistent long time.  ktrace(1) reveals it does
search in /usr/lib and /usr/local/lib in this order, but doesn't in
/usr/X11R6.3/lib even if /etc/ld.so.conf contains it.

Greg, does your /etc/ld.so.cache contain /usr/local/lib/libXm.so upon
runtime error?  If not, ldconfig failed to create valid ld.so.cache.
If it does, ld.so itself might be broken.  More guess, anyone?

Tohru Nishimura
Nara Institute of Science and Technology