Hi,

I get this on OS X:

== running git submodule update
fatal: https://github.com/ghc/libraries/Cabal/info/refs not found: did you run git update-server-info on the server?
Unable to fetch in submodule path 'libraries/Cabal'
git failed: 256 at ./sync-all line 116.

This happens even if I use darcs.haskell.org i.e. through

    ./sync-all --testsuite -r http://darcs.haskell.org/ --no-dph get

If it helps, I do have this patch from earlier today:

commit 8a1b7eb6add9d873a93f8e12ccf507bfe0d1df7e
Author: Ian Lynagh <ian@well-typed.com>
Date:   Tue Apr 30 00:42:31 2013 +0100

    Fix build on OS X
    
    sed on OS X doesn't handle \+

which doesn't seem to fix the problem.