From 1daa883f8c673f8e2a96aa68a4deb8efc4a1f557 Mon Sep 17 00:00:00 2001
From: Michael Raskin <7c6f434c@mail.ru>
Date: Thu, 17 Jun 2010 05:19:26 +0000
Subject: [PATCH] Support renamed downloads for autoupdatable packages

svn path=/nixpkgs/trunk/; revision=22303
---
 pkgs/build-support/builder-defs/builder-defs.nix | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/pkgs/build-support/builder-defs/builder-defs.nix b/pkgs/build-support/builder-defs/builder-defs.nix
index bca7fd716597..3ef0c862964b 100644
--- a/pkgs/build-support/builder-defs/builder-defs.nix
+++ b/pkgs/build-support/builder-defs/builder-defs.nix
@@ -541,10 +541,11 @@ let inherit (builtins) head tail trace; in
      export PYTHONPATH=$PYTHONPATH''${PYTHONPATH:+:}$(toPythonPath $out)
    '') ["minInit" "addInputs" "defEnsureDir"];
 
-   fetchUrlFromSrcInfo = srcInfo: fetchurl {
+   fetchUrlFromSrcInfo = srcInfo: fetchurl ({
      url = srcInfo.url;
      sha256 = srcInfo.hash;
-   };
+   } // 
+   (if (srcInfo ? downloadName) then {name = srcInfo.downloadName;} else {}));
 
    fetchGitFromSrcInfo = srcInfo: fetchgit {
      url = srcInfo.url;