From bb672805cddbd3b5b145a1b5188444ba9af6cde5 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Thu, 10 Dec 2015 15:18:30 +0100
Subject: [PATCH] fetchurl: Always use tarballs.nixos.org

Otherwise, if the upstream mirror changes (rather than deletes) a
file, then tarballs.nixos.org won't be used even if it has a copy of
the original file, and so we'll get a hash mismatch.
---
 pkgs/build-support/fetchurl/builder.sh | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/pkgs/build-support/fetchurl/builder.sh b/pkgs/build-support/fetchurl/builder.sh
index b4c8e1f992c..29565d7cdb9 100644
--- a/pkgs/build-support/fetchurl/builder.sh
+++ b/pkgs/build-support/fetchurl/builder.sh
@@ -89,10 +89,6 @@ for url in $urls; do
         if test -z "${!varName}"; then
             echo "warning: unknown mirror:// site \`$site'"
         else
-            # Assume that SourceForge/GNU/kernel mirrors have better
-            # bandwidth than nixos.org.
-            preferHashedMirrors=
-
             mirrors=${!varName}
 
             # Allow command-line override by setting NIX_MIRRORS_$site.