From 74e4f6befab4514c6ee5bef7a4f3cfdae302ce68 Mon Sep 17 00:00:00 2001
From: Thomas Tuegel <ttuegel@gmail.com>
Date: Fri, 12 Jun 2015 07:26:47 -0500
Subject: [PATCH] ipopt: build with openblas

---
 .../development/libraries/science/math/ipopt/default.nix | 9 +++++++--
 pkgs/top-level/all-packages.nix                          | 2 +-
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/pkgs/development/libraries/science/math/ipopt/default.nix b/pkgs/development/libraries/science/math/ipopt/default.nix
index 4dd1ca46e956..89d2a242f963 100644
--- a/pkgs/development/libraries/science/math/ipopt/default.nix
+++ b/pkgs/development/libraries/science/math/ipopt/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, unzip, blas, liblapack, gfortran }:
+{ stdenv, fetchurl, unzip, openblas, gfortran }:
 
 stdenv.mkDerivation rec {
   version = "3.12.3";
@@ -13,9 +13,14 @@ stdenv.mkDerivation rec {
      export CXXDEFS="-DHAVE_RAND -DHAVE_CSTRING -DHAVE_CSTDIO"
   '';
 
+  configureFlags = [
+    "--with-blas-lib=-lopenblas"
+    "--with-lapack-lib=-lopenblas"
+  ];
+
   nativeBuildInputs = [ unzip ];
 
-  buildInputs = [ gfortran blas liblapack ];
+  buildInputs = [ gfortran openblas ];
 
   enableParallelBuilding = true;
 
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 69c46414c9e3..937c404d74f6 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -13883,7 +13883,7 @@ let
   suitesparse_4_4 = callPackage ../development/libraries/science/math/suitesparse {};
   suitesparse = suitesparse_4_4;
 
-  ipopt = callPackage ../development/libraries/science/math/ipopt { };
+  ipopt = callPackage ../development/libraries/science/math/ipopt { openblas = openblasCompat; };
 
   ### SCIENCE/MOLECULAR-DYNAMICS