OSX HP cabal differs from cabal website

[justhsu]

I installed the Haskell Platform for OSX (Core) yesterday, and I hit some very strange errors with cabal. Eventually, I found out that the binary for the HP cabal (version 2.2.0.0) differs from the binary from the cabal website (also version 2.2.0.0).

SHA256(cabal-website) = b619f57ab31324aefa9a3c6c5277e6a85353c2fabee69aa608e6d505ad4bf140

SHA256(cabal-hp) = dc9c88c77725176fd077f6154d8644083b9cac38c33ced3f1beffc180e90e7af

The file sizes are also different. Is this expected? I had some issue that was fixed by the cabal website version, though now I can't reproduce my original problem with the cabal-HP version.