6.4 vs 6.2.2 can't compile darcs-1.0.2

[Andrei A. Voropaev]

Hello!

Today I've tried to compile darcs-1.0.2 and for that I've installed the
ghc-6.4-i386-unknown-linux.tar.bz2 (in-place) When I tried to compile,
configure script from darcs complained that it couldn't figure out how
to do OpenFd (or someting similar). Then I've installed
ghc-6.2.2-i386-unknown-linux.tar.bz2 (also in-place). Now compilation
was sucessfull.

Are these 2 versions not compatible?

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