[project @ 2002-09-20 13:15:07 by ross]

[project @ 2002-09-20 13:15:07 by ross]
Make Data.Array.Base more portable (no semantic changes, I hope) by

* replacing neat pattern guards with clunky case's

* putting #ifdef __GLASGOW_HASKELL__ around the unboxed stuff

* aliasing GHC.Arr

Note that the reliance on RULES for specialization of general definitions,
rather than a class for e.g. the unsafe freeze/thaw things, means that
other implementations can't specialize them with efficient versions.