[commit: ghc] wip/nfs-locking: Add extra to the list of dependencies (cb5035a)

[git at git.haskell.org]

Repository : ssh://git@git.haskell.org/ghc

On branch  : wip/nfs-locking
Link       : http://ghc.haskell.org/trac/ghc/changeset/cb5035a49c5eee7706d3634c007520e6b1f4c2a5/ghc

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commit cb5035a49c5eee7706d3634c007520e6b1f4c2a5
Author: Andrey Mokhov <andrey.mokhov at gmail.com>
Date:   Tue Feb 14 23:50:42 2017 +0100

    Add extra to the list of dependencies


>---------------------------------------------------------------

cb5035a49c5eee7706d3634c007520e6b1f4c2a5
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 038bde5..2256fbf 100644
--- a/README.md
+++ b/README.md
@@ -23,7 +23,7 @@ follow these steps:
 * If you have never built GHC before, start with the [preparation guide][ghc-preparation].
 
 * This build system is written in Haskell (obviously) and depends on the following Haskell
-packages, which need to be installed: `ansi-terminal mtl shake quickcheck`.
+packages, which need to be installed: `ansi-terminal extra mtl quickcheck shake`.
 
 * Get the sources. It is important for the build system to be in the `hadrian` directory
 of the GHC source tree: