From 3dcff360858d2e9fbdfe3543f739a8eb058b70eb Mon Sep 17 00:00:00 2001
From: Thomas Tuegel <ttuegel@gmail.com>
Date: Wed, 16 Sep 2015 11:19:03 -0500
Subject: [PATCH] julia: build dependencies with same openblas

---
 pkgs/development/compilers/julia/0.3.nix | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/pkgs/development/compilers/julia/0.3.nix b/pkgs/development/compilers/julia/0.3.nix
index 7f0f263283d..82b35e2b9b3 100644
--- a/pkgs/development/compilers/julia/0.3.nix
+++ b/pkgs/development/compilers/julia/0.3.nix
@@ -5,11 +5,22 @@
 , libunwind, llvm, readline, utf8proc, zlib
 # standard library dependencies
 , double_conversion, fftwSinglePrec, fftw, glpk, gmp, mpfr, pcre
+# linear algebra
 , openblas, arpack, suitesparse
 }:
 
 with stdenv.lib;
 
+# All dependencies should use the same OpenBLAS.
+let
+  arpack_ = arpack;
+  suitesparse_ = suitesparse;
+in
+let
+  arpack = arpack_.override { inherit openblas; };
+  suitesparse = suitesparse_.override { inherit openblas; };
+in
+
 stdenv.mkDerivation rec {
   pname = "julia";
   version = "0.3.11";