Built from scratch.  Since this is SGI, I had to do -with-tiff=no, but 
I'm used to that.
External widget works just fine.
Running with 20.4 packages works great.
 XEmacs Build Report as generated
 by build-report-version 1.35 follows: 
 Contents of /ms/user/c/craffert/build/xemacs/irix-b46/Installation:
 (Output from most recent run of ./configure)