I'm getting a segfault on this expression entered into ghci:

GHCi, version 7.6.3: http://www.haskell.org/ghc/  :? for help

Loading package ghc-prim ... linking ... done.

Loading package integer-gmp ... linking ... done.

Loading package base ... linking ... done.

Prelude> fromIntegral (floor $ sqrt (-123.123)) == -123.123

Segmentation fault: 11

I'm running the 32-bit version of the Haskell Platform on OSX.