Emacs 18.55 under SunOS 4.1

[Jeff Fitzgerald]

I'm getting an IOT Trap after building emacs 18.55 under sunos 4.1, I had
previously built emacs 18.55 under sunos 4.03c and experienced no
problems.  I've set up 'config.h' to use 's-sunos4.h' and 'm-sparc.h'.
I've retrieved the files from scratch and re-extracted them twice - no
luck.  Anyone no of any known problems before I start debugging this?

Jeff

P.S. Please followup to jjf at fibercom.com - I don't read this newsgroup
very often - thanks.