[Haskell] GHC writes to stderr

Hi folks, I am just wondering why ghc writes its output to stderr instead of stdout. In case of an error it might be reasonably but all the ordinary information about chaising and stuff should go to a buffered stream I think. Why do I care? I start ghc from emacs in a compile window. The output gets displayed and in the case of an unbuffered output the display gets updated for every single character. I don't have to tell you how slow that is. Cheers, Georg