tn23 (x86 OSX HEAD), build 673, Failure

[Builder]

tn23 (x86 OSX HEAD), build 673

Build failed
Details: http://darcs.haskell.org/ghcBuilder/builders/tn23/673.html

git clone                  | Success
create mk/build.mk         | Success
get subrepos               | Success
repo versions              | Success
touching clean-check files | Success
setting version date       | Success
booting                    | Success
configuring                | Failure: Just (ExitFailure 1)

Build failed
Details: http://darcs.haskell.org/ghcBuilder/builders/tn23/673.html

-------------- next part --------------
checking for gfind... no
checking for find... /usr/bin/find
checking for sort... /usr/bin/sort
checking for GHC version date... given 7.7.20120730
checking for ghc... /Users/thorkilnaur/tn/install/ghc-7.2.1/bin/ghc
checking version of ghc... 7.2.1
configure: error: GHC version 7.4 or later is required to compile GHC.