From 215b49a8814093ef6b953b84efe30de1c3111665 Mon Sep 17 00:00:00 2001
From: Ludovic Courtès <ludovic.courtes@inria.fr>
Date: Thu, 24 Sep 2020 15:08:15 +0200
Subject: gnu: openmpi: Have 'mpirun' look for executables under $prefix.

* gnu/packages/mpi.scm (openmpi)[arguments]: Add
"--enable-mpirun-prefix-by-default" to #:configure-flags.
---
 gnu/packages/mpi.scm | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/gnu/packages/mpi.scm b/gnu/packages/mpi.scm
index d831766ef2..06a82cce95 100644
--- a/gnu/packages/mpi.scm
+++ b/gnu/packages/mpi.scm
@@ -1,6 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2014, 2015, 2018, 2019 Eric Bavier <bavier@member.fsf.org>
-;;; Copyright © 2014, 2015, 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2014, 2015, 2016, 2017, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2014 Ian Denhardt <ian@zenhack.net>
 ;;; Copyright © 2016 Andreas Enge <andreas@enge.fr>
 ;;; Copyright © 2017 Dave Love <fx@gnu.org>
@@ -221,6 +221,10 @@ bind processes, and much more.")
                            "--with-hwloc=external"
                            "--with-libevent"
 
+                           ;; Help 'orterun' and 'mpirun' find their tools
+                           ;; under $prefix by default.
+                           "--enable-mpirun-prefix-by-default"
+
                            ;; InfiniBand support
                            "--enable-openib-control-hdr-padding"
                            "--enable-openib-dynamic-sl"
-- 
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