From 5ad79dc4bb22326e5a98db7bf2b69a76a2e6f01e Mon Sep 17 00:00:00 2001
From: volth <volth@volth.com>
Date: Sun, 21 Apr 2019 17:06:50 +0000
Subject: compilation for particular x86_64 architecture

---
 pkgs/applications/science/math/nauty/default.nix | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

(limited to 'pkgs/applications/science/math/nauty/default.nix')

diff --git a/pkgs/applications/science/math/nauty/default.nix b/pkgs/applications/science/math/nauty/default.nix
index 7351de53cfc..226e13c004d 100644
--- a/pkgs/applications/science/math/nauty/default.nix
+++ b/pkgs/applications/science/math/nauty/default.nix
@@ -1,7 +1,6 @@
 { stdenv
 , lib
 , fetchurl
-, optimize ? false # impure
 }:
 stdenv.mkDerivation rec {
   name = "nauty-${version}";
@@ -11,13 +10,15 @@ stdenv.mkDerivation rec {
     sha256 = "05z6mk7c31j70md83396cdjmvzzip1hqb88pfszzc6k4gy8h3m2y";
   };
   outputs = [ "out" "dev" ];
-  configureFlags = lib.optionals (!optimize) [
+  configureFlags = {
     # Prevent nauty from sniffing some cpu features. While those are very
     # widely available, it can lead to nasty bugs when they are not available:
     # https://groups.google.com/forum/#!topic/sage-packaging/Pe4SRDNYlhA
-    "--disable-popcnt"
-    "--disable-clz"
-  ];
+    "default"        = [ "--disable-clz" "--disable-popcnt" ];
+    "westmere"       = [ "--disable-clz" ];
+    "sandybridge"    = [ "--disable-clz" ];
+    "ivybridge"      = [ "--disable-clz" ];
+  }.${stdenv.hostPlatform.platform.gcc.arch or "default"} or [];
   buildInputs = [];
   installPhase = ''
     mkdir -p "$out"/{bin,share/doc/nauty} "$dev"/{lib,include/nauty}
-- 
cgit 1.4.1