Looks like I just got Haskell onto PowerPC: ghc 7.6.3 should be enough to build modern versions (provided it is fully functional, I have only tested helloworld.hs now).
View attachment 1961150
UPD. Well, nothing turn out to be easy LOL, I cannot build 7.8.4 using 7.6.2 or 7.6.3. Working on that at the moment.
If we happen to have Haskell gurus here, I will really appreciate your help.