squid.1.1.9 core dumping on Digital Unix 4.0

I am running squid.1.1.9 on Digital UNIX 4.0b

squid continually core dumps with the following error:-
# ./squid
Floating exception - core dumped

tail of cache.log

97/04/08 15:00:22| ipcache_purgelru: ipcache_count: 8
97/04/08 15:00:22| LRU candidates : 8
97/04/08 15:00:22| high W mark : 1945
97/04/08 15:00:22| low W mark : 1843
97/04/08 15:00:22| not pending : 8
97/04/08 15:00:22| removed : 0
97/04/08 15:00:22| comm_select: 0 sockets ready at 860475622
97/04/08 15:00:22| comm_select: time out: 860475622.
97/04/08 15:00:22| eventRun: Running 'storeMaintain'
97/04/08 15:00:22| eventAdd: Adding 'storeMaintain', in 1 seconds

squid.1.1.6 runs fine.

Any ideas?

-- 
Merv Connell
Information Technology Division.  CQU   Ph. 61 79 309222 Fax. 61 79
309254