Fatal config error

We are trying to install squid on a large DEC Alpha system running Tru-
Unix 4.0b. Compilation and configuration went without a hitch but
startup continuously fails with fatal error

FATAL : unknown cache_dir type '/squidcache'

Looking into code it appears that program cannot recognise /squidcache
as an ufs directory. We newfs'd an ufs partition on a new 2gb disk and
/squidcache is its mountpoint.
We confirm that /squidcache exists and is owned by/grouped to the
effective user entries (which are both httpd).
Can anybody help us to overcome this problem please?
Thanks
stuart mckenzie

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