From d0bb7f0c535132479dd66d975129db2a11d1afc4 Mon Sep 17 00:00:00 2001
From: Dan Peebles <pumpkin@me.com>
Date: Mon, 31 Oct 2016 21:39:44 +0000
Subject: [PATCH] ruby: remove unnecessary runtime dependency on groff

---
 pkgs/development/interpreters/ruby/default.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkgs/development/interpreters/ruby/default.nix b/pkgs/development/interpreters/ruby/default.nix
index 7126a5140c36..336c861bbdc4 100644
--- a/pkgs/development/interpreters/ruby/default.nix
+++ b/pkgs/development/interpreters/ruby/default.nix
@@ -129,6 +129,9 @@ let
           $out/bin/ruby setup.rb
           popd
 
+          # Remove unnecessary groff reference from runtime closure, since it's big
+          sed -i '/NROFF/d' $out/lib/ruby/*/*/rbconfig.rb
+
           # Bundler tries to create this directory
           mkdir -pv $out/${passthru.gemPath}
           mkdir -p $out/nix-support