From 1e0605738a94d834c97d6e7b9d1fc920f649facb Mon Sep 17 00:00:00 2001
From: Andreas Herrmann <andreash87@gmx.ch>
Date: Sun, 6 Jul 2014 23:13:04 +0200
Subject: [PATCH] openmpi: Optional configure flags

 * Activate support for the Sun Grid Engine
 * Pass PATH/LD_LIBRARY_PATH pointing to the current mpi installation
   to other processes by default.
---
 pkgs/development/libraries/openmpi/default.nix | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/libraries/openmpi/default.nix b/pkgs/development/libraries/openmpi/default.nix
index 678a439fe0a..15160d3afc4 100644
--- a/pkgs/development/libraries/openmpi/default.nix
+++ b/pkgs/development/libraries/openmpi/default.nix
@@ -1,4 +1,13 @@
-{stdenv, fetchurl, gfortran}:
+{stdenv, fetchurl, gfortran
+
+# Enable the Sun Grid Engine bindings
+, enableSGE ? false
+
+# Pass PATH/LD_LIBRARY_PATH to point to current mpirun by default
+, enablePrefix ? false
+}:
+
+with stdenv.lib;
 
 stdenv.mkDerivation {
   name = "openmpi-1.6.5";
@@ -7,6 +16,10 @@ stdenv.mkDerivation {
     sha256 = "11gws4d3z7934zna2r7m1f80iay2ha17kp42mkh39wjykfwbldzy";
   };
   buildInputs = [ gfortran ];
+  configureFlags = []
+    ++ optional enableSGE "--with-sge"
+    ++ optional enablePrefix "--enable-mpirun-prefix-by-default"
+    ;
   meta = {
     homePage = http://www.open-mpi.org/;
     description = "Open source MPI-2 implementation";