I downloaded ghc-6.5.20051122-i386-unknown-linux.tar.bz2 and tried to use it (as bootstrap for building Haskell at first, but building Pugs fails the same way) It installed fine. My attempts to compile something with it result with a following error: ghc-6.5.20051122: could not execute: gcc-3.4.3 <> Indeed, the compiler I have has version gcc-3.3.4, and this mismatches with gcc-3.4.3, also How should I avoid this problem? Why having that precise requirement of GCC version? Best regards, Vadim.