[9fans] 9vx and ubuntu 10.04LTS

[Charles Forsyth]

having upgraded a machine to ubunut 10.04LTS yesterday,
9vx now crashes with a segmentation violation shortly after
saying it is starting /bin/rc. has anyone else a similar
problem on that or another linux system? 9vx itself was unchanged,
but i also tried recompiling it (in case a linux include file had
changed subtly) but it made no difference.