From 8346343aa5e2f92fb75a71217cdd68a53efdf227 Mon Sep 17 00:00:00 2001
From: Andreas Herrmann <andreash87@gmx.ch>
Date: Tue, 1 Jul 2014 15:55:12 +0200
Subject: [PATCH] hdf5: Add mpi support

Optionally, build the parallel version of hdf5.
---
 pkgs/tools/misc/hdf5/default.nix | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/pkgs/tools/misc/hdf5/default.nix b/pkgs/tools/misc/hdf5/default.nix
index a7d03d1335f..43b3a3240e6 100644
--- a/pkgs/tools/misc/hdf5/default.nix
+++ b/pkgs/tools/misc/hdf5/default.nix
@@ -3,6 +3,7 @@
 , fetchurl
 , zlib ? null
 , szip ? null
+, mpi ? null
 }:
 stdenv.mkDerivation rec {
   version = "1.8.13";
@@ -12,11 +13,22 @@ stdenv.mkDerivation rec {
     sha256 = "1h9qdl321gzm3ihdhlijbl9sh9qcdrw94j7izg64yfqhxj7b7xl2";  			
   };
 
+  passthru = {
+    mpiSupport = (mpi != null);
+    inherit mpi;
+  };
+
   buildInputs = []
     ++ stdenv.lib.optional (zlib != null) zlib
     ++ stdenv.lib.optional (szip != null) szip;
 
-  configureFlags = if szip != null then "--with-szlib=${szip}" else "";
+  propagatedBuildInputs = []
+    ++ stdenv.lib.optional (mpi != null) mpi;
+
+  configureFlags = "
+    ${if szip != null then "--with-szlib=${szip}" else ""}
+    ${if mpi != null then "--enable-parallel" else ""}
+  ";
   
   patches = [./bin-mv.patch];