+ 2. Check out the source code from git
+ -------------------------------------
+
+ First get the GHC git repository:
+
+ $ git clone http://darcs.haskell.org/ghc.git/
+
+ Then run the sync-all script in that repository
+ to get the other repositories:
+
+ $ cd ghc
+ $ ./sync-all get
+
+ This checks out the "boot" packages.