| Jin Yang <[EMAIL PROTECTED]> writes ... | | I wrote a translator in Haskell and it was compiled OK using an earlier ghc | version. Now the ghc at my department (Dept of Computing , Imperial) was | upgrated to ghc0.26 and all my code got a compiling error: | ld: Undefined symbol | ___main Jin Yang, I wish I could help but ghc0.26 is now so old that I don't have a copy around to try. You could upgrade to 0.29 (which is solid Haskell 1.2), or to 2.04 (which is Haskell 1.4, but only available in source form just now). Simon