Package: libghc6-haskelldb-dev Version: 0.9.cvs.601-10 This version of the package has a dependency header that looks like this (in part): Depends: libghc6-hsql-dev (>= 1.6), libghc6-hsql-dev (<< ++) Although "++" seems to be strictly according to the syntax in Policy (even if it doesn't start with a digit), but I suspect it is not what is meant here. -- I've never seen anyone wear a Freudian slip.