Hey...
Okay this is weird. Sometime in the last couple months the company providing OpenMotif took Mac off their download page (as specified in the VICAR build instructions).
Turns out the package is still there, just well hidden:
I think we'll include this in "externals" next time since apparently they are no longer supporting Motif builds for the Mac.
If anyone has a suggestion for a better place to get Motif (preferably without buying into the whole fink or macports ecosystem), please let me know.
-Bob