Is there any haskell interpreter done it already? Hugs and hmake support ":also" command. I don't know now exactly it works, but quick test showed than it (sometimes) helps to mix scopes:

Hi (hmake/nhc98): ------- begin cut Prelude> :also Maybe [Std module... /usr/local/opt/nhc98/include/nhc98/Prelude.hi] [Std module... /usr/local/opt/nhc98/include/nhc98/Maybe.hi] Maybe> print "a" "a" Maybe> :also IO [Std module... /usr/local/opt/nhc98/include/nhc98/Prelude.hi] [Std module... /usr/local/opt/nhc98/include/nhc98/Maybe.hi] [Std module... /usr/local/opt/nhc98/include/nhc98/IO.hi] IO> listToMaybe [1] Just 1 ------- end cut

Hugs's :also is the same as GHC's :add; it causes another module to be loaded without throwing away the existing loaded set, and it changes the scope to the new module. Hi seems to be doing something slightly different, but I can't find any documentation on Hi's :also command. Cheers, Simon