From dcd6847ddb75553129e666ee6f3f9763d1d18b4d Mon Sep 17 00:00:00 2001
From: Robert Scott <code@humanleg.org.uk>
Date: Sat, 12 Sep 2020 01:20:46 +0100
Subject: [PATCH] libxnd, pythonPackages.xnd: unstable-2018-11-27 ->
 unstable-2019-08-01

this is the most recent commit to upstream's master at time of writing

includes fixes of python package for darwin
---
 pkgs/development/libraries/libxnd/default.nix   | 16 ++++++++++++----
 pkgs/development/python-modules/xnd/default.nix | 13 ++++++++++++-
 2 files changed, 24 insertions(+), 5 deletions(-)

diff --git a/pkgs/development/libraries/libxnd/default.nix b/pkgs/development/libraries/libxnd/default.nix
index 7313b2582bea28..1fac0d86d4c72a 100644
--- a/pkgs/development/libraries/libxnd/default.nix
+++ b/pkgs/development/libraries/libxnd/default.nix
@@ -6,13 +6,13 @@
 
 stdenv.mkDerivation {
   pname = "libxnd";
-  version = "unstable-2018-11-27";
+  version = "unstable-2019-08-01";
 
   src = fetchFromGitHub {
-    owner = "plures";
+    owner = "xnd-project";
     repo = "xnd";
-    rev = "8a9f3bd1d01d872828b40bc9dbd0bc0184524da3";
-    sha256 = "10jh2kqvhpzwy50adayh9az7z2lm16yxy4flrh99alzzbqdyls44";
+    rev = "6f305cd40d90b4f3fc2fe51ae144b433d186a6cc";
+    sha256 = "1n31d64qwlc7m3qkzbafhp0dgrvgvkdx89ykj63kll7r1n3yk59y";
   };
 
   buildInputs = [ libndtypes ];
@@ -28,6 +28,14 @@ stdenv.mkDerivation {
       "--with-libs=${libndtypes}/lib"
   ];
 
+  # other packages which depend on libxnd seem to expect overflow.h, but
+  # it doesn't seem to be included in the installed headers. for now this
+  # works, but the generic name of the header could produce problems
+  # with collisions down the line.
+  postInstall = ''
+    cp libxnd/overflow.h $out/include/overflow.h
+  '';
+
   doCheck = true;
 
   meta = {
diff --git a/pkgs/development/python-modules/xnd/default.nix b/pkgs/development/python-modules/xnd/default.nix
index 558e414debf830..3178e171f84423 100644
--- a/pkgs/development/python-modules/xnd/default.nix
+++ b/pkgs/development/python-modules/xnd/default.nix
@@ -1,4 +1,6 @@
-{ buildPythonPackage
+{ stdenv
+, buildPythonPackage
+, python
 , ndtypes
 , libndtypes
 , libxnd
@@ -25,5 +27,14 @@ buildPythonPackage {
   postInstall = ''
     mkdir $out/include
     cp python/xnd/*.h $out/include
+  '' + stdenv.lib.optionalString stdenv.isDarwin ''
+    install_name_tool -add_rpath ${libxnd}/lib $out/${python.sitePackages}/xnd/_xnd.*.so
+  '';
+
+  checkPhase = ''
+    pushd python
+    mv xnd _xnd
+    python test_xnd.py
+    popd
   '';
 }