Making XGEN

We have been trying to remake XGEN using Quest Motif 1.2 on a Sun4
using various C compilers. (CC & GCC). The program will "make" but
when run it will core dump on attempts to create variable length
text windows (lists). Has anyone else run into this problem?
Solutions? Suggestions?

Donald R. Newcomb U.S. Naval Oceanographic Office
newcomb@navo.navy.mil Stennis Space Center, MS 39522
newcomb@{pops|q-aais}.navo.navy.mil Voice: 601.688.5998
                                       FAX: 601.688.5485