From a3cb3fb64b3035d1b40c05f9d9df6b141ca6ffd9 Mon Sep 17 00:00:00 2001
From: Markus Kowalewski <markus.kowalewski@gmail.com>
Date: Sat, 10 Nov 2018 16:27:47 +0100
Subject: [PATCH] openmpi: refactor version string for auto updates

---
 pkgs/development/libraries/openmpi/default.nix | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/pkgs/development/libraries/openmpi/default.nix b/pkgs/development/libraries/openmpi/default.nix
index c98249e89c4d..345dffa87f5b 100644
--- a/pkgs/development/libraries/openmpi/default.nix
+++ b/pkgs/development/libraries/openmpi/default.nix
@@ -9,14 +9,13 @@
 }:
 
 let
-  majorVersion = "3.1";
-  minorVersion = "3";
+  version = "3.1.3";
 
 in stdenv.mkDerivation rec {
-  name = "openmpi-${majorVersion}.${minorVersion}";
+  name = "openmpi-${version}";
 
-  src = fetchurl {
-    url = "http://www.open-mpi.org/software/ompi/v${majorVersion}/downloads/${name}.tar.bz2";
+  src = with stdenv.lib.versions; fetchurl {
+    url = "http://www.open-mpi.org/software/ompi/v${major version}.${minor version}/downloads/${name}.tar.bz2";
     sha256 = "1dks11scivgaskjs5955y9wprsl12wr3gn5r7wfl0l8gq03l7q4b";
   };