From c93579d0fa772c95c0298d4d838ef53bdd07982d Mon Sep 17 00:00:00 2001
From: Timo Kaufmann <timokau@zoho.com>
Date: Wed, 7 Mar 2018 18:45:46 +0100
Subject: fflas-ffpack: enable checks, disable simd

---
 .../development/libraries/fflas-ffpack/default.nix | 31 +++++++++++++++++++---
 1 file changed, 28 insertions(+), 3 deletions(-)

diff --git a/pkgs/development/libraries/fflas-ffpack/default.nix b/pkgs/development/libraries/fflas-ffpack/default.nix
index edea352ae2dd..82ece22b7c7d 100644
--- a/pkgs/development/libraries/fflas-ffpack/default.nix
+++ b/pkgs/development/libraries/fflas-ffpack/default.nix
@@ -1,4 +1,7 @@
-{stdenv, fetchFromGitHub, autoreconfHook, givaro, pkgconfig, openblas, liblapack}:
+{ stdenv, fetchFromGitHub, autoreconfHook, givaro, pkgconfig, openblas, liblapack
+, gmpxx
+, optimize ? false # impure
+}:
 stdenv.mkDerivation rec {
   name = "${pname}-${version}";
   pname = "fflas-ffpack";
@@ -9,9 +12,31 @@ stdenv.mkDerivation rec {
     rev = "v${version}";
     sha256 = "1cqhassj2dny3gx0iywvmnpq8ca0d6m82xl5rz4mb8gaxr2kwddl";
   };
-  nativeBuildInputs = [ autoreconfHook pkgconfig ];
+  checkInputs = [
+    gmpxx
+  ];
+  nativeBuildInputs = [
+    autoreconfHook
+    pkgconfig
+  ] ++ stdenv.lib.optionals doCheck checkInputs;
   buildInputs = [ givaro (liblapack.override {shared = true;}) openblas];
-  configureFlags = "--with-blas-libs=-lopenblas --with-lapack-libs=-llapack";
+  configureFlags = [
+    "--with-blas-libs=-lopenblas"
+    "--with-lapack-libs=-llapack"
+  ] ++ stdenv.lib.optionals (!optimize) [
+    # disable SIMD instructions (which are enabled *when available* by default)
+    "--disable-sse"
+    "--disable-sse2"
+    "--disable-sse3"
+    "--disable-ssse3"
+    "--disable-sse41"
+    "--disable-sse42"
+    "--disable-avx"
+    "--disable-avx2"
+    "--disable-fma"
+    "--disable-fma4"
+  ];
+  doCheck = true;
   meta = {
     inherit version;
     description = ''Finite Field Linear Algebra Subroutines'';
-- 
cgit 1.4.1