Dear ghc-5.00.1, I wonder: is the interpreted code generally expected to be larger than compiled to .o ? I have certain Foo project which under ghc-4.08 had: compiled Foo + compiled demo examples make Foo-Demo.a of 10Mb, and this all load and run on 32Mb RAM computer inside RAM (probably, 15Mb will remain for heap). With ghc-5.00.1, the compiled Foo.a, Foo.o are each of 7Mb, ghci -package foo ... Prelude> :l T_ loads the interpreted demo examples (importing Foo.o), and this needs more than 45Mb heap. Recalling that ghci does not like strict polymorphic data fields, I add that the compiled part has the strict polymorphic fields like D !a !(a -> a), but the interpreted demo programs do not have strict fields. ----------------- Serge Mechveliani mechvel@botik.ru