From be3a2d2b7d34dce5351a0ef2806e206f7709b5a3 Mon Sep 17 00:00:00 2001
From: Yorick van Pelt <yorick@yorickvanpelt.nl>
Date: Mon, 15 Jul 2019 16:11:17 +0200
Subject: [PATCH 1/2] elixir: default 1.7.4 -> 1.9.0

---
 pkgs/development/beam-modules/default.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/development/beam-modules/default.nix b/pkgs/development/beam-modules/default.nix
index 63d046c7b47e..eb9353a4a637 100644
--- a/pkgs/development/beam-modules/default.nix
+++ b/pkgs/development/beam-modules/default.nix
@@ -41,7 +41,7 @@ let
         buildMix = callPackage ./build-mix.nix {};
 
         # BEAM-based languages.
-        elixir = elixir_1_7;
+        elixir = elixir_1_9;
 
         elixir_1_9 = lib.callElixir ../interpreters/elixir/1.9.nix {
           inherit rebar erlang;

From 1b0459741f5afee4f0267b6e3dd140103395093e Mon Sep 17 00:00:00 2001
From: Yorick van Pelt <yorick@yorickvanpelt.nl>
Date: Tue, 16 Jul 2019 11:12:38 +0200
Subject: [PATCH 2/2] rabbitmq-server: bump elixir dependency to 1.8

---
 pkgs/servers/amqp/rabbitmq-server/default.nix | 1 +
 pkgs/top-level/all-packages.nix               | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/pkgs/servers/amqp/rabbitmq-server/default.nix b/pkgs/servers/amqp/rabbitmq-server/default.nix
index 3d36202e8616..57cec51933fc 100644
--- a/pkgs/servers/amqp/rabbitmq-server/default.nix
+++ b/pkgs/servers/amqp/rabbitmq-server/default.nix
@@ -8,6 +8,7 @@ stdenv.mkDerivation rec {
 
   version = "3.7.15";
 
+  # when updating, consider bumping elixir version in all-packages.nix
   src = fetchurl {
     url = "https://github.com/rabbitmq/rabbitmq-server/releases/download/v${version}/${name}.tar.xz";
     sha256 = "14ipnvcrwln9mwr4r32461js2gdlrr4h4hy92393ixbkscf9wdir";
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 1acc477c0664..674c9dd25a72 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -14743,7 +14743,7 @@ in
 
   rabbitmq-server = callPackage ../servers/amqp/rabbitmq-server {
     inherit (darwin.apple_sdk.frameworks) AppKit Carbon Cocoa;
-    elixir = elixir_1_6;
+    elixir = elixir_1_8;
     erlang = erlang_nox;
   };