From 18993b3dd11fcbc7cfede0e41c9955063417ec48 Mon Sep 17 00:00:00 2001
From: Graham Christensen <graham@grahamc.com>
Date: Tue, 29 Jan 2019 11:47:15 -0500
Subject: [PATCH] elixir: remember where a package is defined

A bunch of human-facing things around Nixpkgs depend on knowing where
a package was defined. This PR makes it so ofborg can ping elixir
maintainers.
---
 pkgs/development/interpreters/elixir/generic-builder.nix | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/interpreters/elixir/generic-builder.nix b/pkgs/development/interpreters/elixir/generic-builder.nix
index b4e1cacfe26..844d6eeb4fb 100644
--- a/pkgs/development/interpreters/elixir/generic-builder.nix
+++ b/pkgs/development/interpreters/elixir/generic-builder.nix
@@ -7,7 +7,7 @@
 , sha256 ? null
 , rev ? "v${version}"
 , src ? fetchFromGitHub { inherit rev sha256; owner = "elixir-lang"; repo = "elixir"; }
-}:
+} @ args:
 
 let
   inherit (stdenv.lib) getVersion versionAtLeast;
@@ -62,6 +62,7 @@ in
             --replace "/usr/bin/env elixir" "${coreutils}/bin/env elixir"
     '';
 
+    pos = builtins.unsafeGetAttrPos "sha256" args;
     meta = with stdenv.lib; {
       homepage = https://elixir-lang.org/;
       description = "A functional, meta-programming aware language built on top of the Erlang VM";