From 5ac4f45f728fc44ddc95f7beabbdc0b9102e508f Mon Sep 17 00:00:00 2001
From: Theodore Ni <3806110+tjni@users.noreply.github.com>
Date: Thu, 22 Sep 2022 16:50:21 -0700
Subject: [PATCH] mxnet: patch to fix build on aarch64-darwin

The patches autodetect when the system is x86 and supports SSE.
---
 .../applications/science/math/mxnet/default.nix | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/pkgs/applications/science/math/mxnet/default.nix b/pkgs/applications/science/math/mxnet/default.nix
index 599d97639742..9a1b550d882d 100644
--- a/pkgs/applications/science/math/mxnet/default.nix
+++ b/pkgs/applications/science/math/mxnet/default.nix
@@ -1,4 +1,4 @@
-{ config, stdenv, lib, fetchurl, bash, cmake
+{ config, stdenv, lib, fetchurl, fetchpatch, bash, cmake
 , opencv3, gtest, blas, gomp, llvmPackages, perl
 , cudaSupport ? config.cudaSupport or false, cudaPackages ? {}, nvidia_x11
 , cudnnSupport ? cudaSupport
@@ -21,6 +21,21 @@ stdenv.mkDerivation rec {
     hash = "sha256-EephMoF02MKblvNBl34D3rC/Sww3rOZY+T442euMkyI=";
   };
 
+  patches = [
+    # Remove the following two patches when updating mxnet to 2.0.
+    (fetchpatch {
+      name = "1-auto-disable-sse-for-non-x86.patch";
+      url = "https://github.com/apache/incubator-mxnet/commit/55e69871d4cadec51a8bbb6700131065388cb0b9.patch";
+      hash = "sha256-uaMpM0F9HRtEBXz2ewB/dlbuKaY5/RineCPUE2T6CHU=";
+    })
+    (fetchpatch {
+      name = "2-auto-disable-sse-for-non-x86.patch";
+      url = "https://github.com/apache/incubator-mxnet/commit/c1b96f562f55dfa024ac941d7b104f00e239ee0f.patch";
+      excludes = ["ci/docker/runtime_functions.sh"];
+      hash = "sha256-r1LbC8ueRooW5tTNakAlRSJ+9aR4WXXoEKx895DgOs4=";
+    })
+  ];
+
   nativeBuildInputs = [ cmake perl ];
 
   buildInputs = [ opencv3 gtest blas.provider ]