Missing Data.Map library? GHC 6.8.2 under OS X

[Thomas Krauss]

I seem to be having trouble using GHC 6.8.2 and OS X (10.5).  It seems
that any use of anything from Data.Map results in a link error like

Undefined symbols:
  "___stginit_containerszm0zi1zi0zi1_DataziMap_", referenced from:
      ___stginit_Main_ in tst_parse.o
ld: symbol(s) not found

Has anyone else seen this?  I tried reinstalling the package from
haskell.org, but no luck.