From c694425a0300e200f12aa490bf32bf209117f3c0 Mon Sep 17 00:00:00 2001
From: Joel Taylor <me@joelt.io>
Date: Thu, 7 Aug 2014 20:06:57 -0700
Subject: [PATCH] allow importGems to override cp args

---
 pkgs/development/interpreters/ruby/gems.nix | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/interpreters/ruby/gems.nix b/pkgs/development/interpreters/ruby/gems.nix
index fa573a0ce95..cd5ba0b3213 100644
--- a/pkgs/development/interpreters/ruby/gems.nix
+++ b/pkgs/development/interpreters/ruby/gems.nix
@@ -17,8 +17,9 @@ let
 self = rec {
   inherit buildRubyGem;
 
-  # import an attrset full of gems, then override necessary gems
-  importGems = file: (callPackage file { inherit buildRubyGem; rubyLibs = self; });
+  # import an attrset full of gems, then override badly behaved ones
+  importGems = file: args:
+    (callPackage file ({ inherit buildRubyGem; rubyLibs = self; } // args));
 
   ##################################################################
   # stuff EVERYONE needs