[Haskell-beginners] haskell error message

Hi everybody, can somebody explain as to what the following error message means.. [1 of 1] Compiling Main ( main.hs, main.o ) SpecConstr Function `$wf{v s3mp} [lid]' has four call patterns, but the limit is 3 Use -fspec-constr-count=n to set the bound Use -dppr-debug to see specialisations SpecConstr Function `$wf{v X3sC} [lid]' has three call patterns, but the limit is 1 Use -fspec-constr-count=n to set the bound Use -dppr-debug to see specialisations Linking main ... Thanks, Sunil.