2.11bsd rogue can't build

Thanks for the leads, everyone! I made a little progress: I did read enough about ld to get it to load the .o files from the initial cc run into a separate I&d overlaid executable. But when I execute it, it gives me Segmentation fault (core dumped).. There was one complaint of Undefined during the ld run even though I said -lc_p (and validated that _environ is in that .a file using nm. Undefined: _environ but it seemed to succeed in building the executable despite that. Well, I'm guessing it succeeded because the output file rogue is sitting there afterwards and has been marked executable, which, according to the man page, ld doesn't mark that way unless it succeeds. [35] root--> ld -t -v -M -i -X -x init.o main.o level.o score.o machdep.o inventory.o -Z hit.o monster.o -Z message.o move.o -Z object.o pack.o play.o -Z curses.o random.o ring.o -Z room.o -Z save.o spec_hit.o -Z throw.o trap.o -Z use.o zap.o -Y -o rogue -lcurses -ltermlib -lc_p [36] root--> size rogue text data bss dec hex 44928 18554 10520 74002 12112 total text: 88704 overlays: 7616,6144,7488,1856,4352,6144,3840,6336 [37] root--> ./rogue Segmentation fault (core dumped) See anything amiss in my process? That Undefined _environ during ld still bugs me. Is the next step dissecting the program or its core with adb to find what's wrong? thx jake