From 2a4d0627e61ce9261d891b5199c2463c5b62ee4f Mon Sep 17 00:00:00 2001
From: Vincent Laporte
Date: Fri, 15 Mar 2019 13:00:17 +0000
Subject: [nix] Store the reference to nixpkgs in a dedicated file

---
 default.nix | 6 +-----
 nixpkgs.nix | 4 ++++
 2 files changed, 5 insertions(+), 5 deletions(-)
 create mode 100644 nixpkgs.nix

diff --git a/default.nix b/default.nix
index 3290f5dee8..d48b2012d2 100644
--- a/default.nix
+++ b/default.nix
@@ -21,11 +21,7 @@
 # Once the build is finished, you will find, in the current directory,
 # a symlink to where Coq was installed.
 
-{ pkgs ?
-    (import (fetchTarball {
-      url = "https://github.com/NixOS/nixpkgs/archive/11cf7d6e1ffd5fbc09a51b76d668ad0858a772ed.tar.gz";
-      sha256 = "0zcg4mgfdk3ryiqj1j5iv5bljjvsgi6q6j9z1vkq383c4g4clc72";
-    }) {})
+{ pkgs ? import ./nixpkgs.nix {}
 , ocamlPackages ? pkgs.ocamlPackages
 , buildIde ? true
 , buildDoc ? true
diff --git a/nixpkgs.nix b/nixpkgs.nix
new file mode 100644
index 0000000000..13da772463
--- /dev/null
+++ b/nixpkgs.nix
@@ -0,0 +1,4 @@
+import (fetchTarball {
+  url = "https://github.com/NixOS/nixpkgs/archive/11cf7d6e1ffd5fbc09a51b76d668ad0858a772ed.tar.gz";
+  sha256 = "0zcg4mgfdk3ryiqj1j5iv5bljjvsgi6q6j9z1vkq383c4g4clc72";
+})
-- 
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