Hi,
I get this on OS X:
== running git submodule update
Unable to fetch in submodule path 'libraries/Cabal'
git failed: 256 at ./sync-all line 116.
If it helps, I do have this patch from earlier today:
commit 8a1b7eb6add9d873a93f8e12ccf507bfe0d1df7e
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.