From 98c7e70a3fde4821bfd45c1cfbbb81adbe8a7ea1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vladim=C3=ADr=20=C4=8Cun=C3=A1t?= <vcunat@gmail.com>
Date: Mon, 25 Jan 2016 09:55:00 +0100
Subject: [PATCH] linux stdenv bootstrap: avoid building grep twice

It's perfectly enough when we use the bootstrapped grep everywhere
except the one put into the final stdenv and final pkgs.
---
 pkgs/stdenv/linux/default.nix | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/pkgs/stdenv/linux/default.nix b/pkgs/stdenv/linux/default.nix
index 4ddf62f0aef..ac7d8f5c706 100644
--- a/pkgs/stdenv/linux/default.nix
+++ b/pkgs/stdenv/linux/default.nix
@@ -231,7 +231,8 @@ rec {
   # Construct a fourth stdenv that uses the new GCC.  But coreutils is
   # still from the bootstrap tools.
   stage4 = stageFun {
-    inherit (stage3.pkgs) gccPlain glibc binutils gnugrep;
+    inherit (stage3.pkgs) gccPlain glibc binutils;
+    gnugrep = bootstrapTools;
     coreutils = bootstrapTools;
     name = "";