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For each package, the compiler has a specification telling it ^^^^^^^^^^^^^^^^ So you'd have to change the compiler (driver script) if you want to add a package? Yes I know how this works with ghc now, but I thought the new namespace proposal could somehow give a more uniform solution.

At the moment, or rather in the forthcoming GHC 5.00, the package specifications are in a configuration file which GHC reads. GHC has command line options for installing new packages and deleting existing ones (actually just installing/deleting the package spec, not the package itself). Cheers, Simon