Error building GHC: can't locate import `Package'

[Peter Simons]

When building the current CVS HEAD with ghc-6.2.2 on
Linux/x86, I get this error:

  [...]
  ==fptools== make boot - --no-print-directory -r;
   in /usr/local/src/ghc-current/ghc/utils/ghc-pkg
  --------------------------------------------------------------------
  Creating Version.hs ...
  ghc-6.2.2 -M -optdep-f -optdep.depend -osuf o
    -optdep--exclude-module=Compat.RawSystem
    -optdep--exclude-module=Compat.Directory
    -optdep--exclude-module=Distribution.Compat.Error
    -optdep--exclude-module=Distribution.Compat.ReadP
    -optdep--exclude-module=Distribution.Extension
    -optdep--exclude-module=Distribution.InstalledPackageInfo
    -optdep--exclude-module=Distribution.License
    -optdep--exclude-module=Distribution.Package
    -optdep--exclude-module=Distribution.ParseUtils
    -optdep--exclude-module=Distribution.Setup
    -optdep--exclude-module=Distribution.Version
    -optdep--exclude-module=System.FilePath -H16m -O
    -optc-nopie -optc-fno-stack-protector-all
    -optc-fno-stack-protector -cpp -Wall
    -fno-warn-name-shadowing -fno-warn-unused-matches
    -i../../lib/compat Main.hs ParsePkgConfLite.hs Version.hs
  ParsePkgConfLite.hs: can't locate import `Package'

It seems that ParsePkgConfLite.hs omits the "Distribution"
part when importing Distribution.Package. 

Peter