From d680f541bf7a1e369cd9faade3ed5618b5917087 Mon Sep 17 00:00:00 2001
From: John Ericson <Ericson2314@Yahoo.com>
Date: Thu, 9 Feb 2017 11:21:07 -0500
Subject: [PATCH] top-level: Hack around Nix's --arg logic not handling unnamed
 params

---
 pkgs/top-level/impure.nix | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pkgs/top-level/impure.nix b/pkgs/top-level/impure.nix
index 98094e93160..61ef729fa10 100644
--- a/pkgs/top-level/impure.nix
+++ b/pkgs/top-level/impure.nix
@@ -18,6 +18,11 @@ in
   # so we do it now.
   localSystem ? builtins.intersectAttrs { system = null; platform = null; } args
 
+, # These are needed only because nix's `--arg` command-line logic doesn't work
+  # with unnamed parameters allowed by ...
+  system ? localSystem.system
+, platform ? localSystem.platform
+
 , # Fallback: The contents of the configuration file found at $NIXPKGS_CONFIG or
   # $HOME/.config/nixpkgs/config.nix.
   config ? let