From 2933681be0e04e3ef87b3977b41e423cba6249b3 Mon Sep 17 00:00:00 2001
From: arcnmx <arcnmx@users.noreply.github.com>
Date: Sat, 22 Jun 2019 22:30:04 -0700
Subject: [PATCH] pythonPackages.hidapi: enable on darwin

---
 pkgs/development/python-modules/hidapi/default.nix | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/pkgs/development/python-modules/hidapi/default.nix b/pkgs/development/python-modules/hidapi/default.nix
index d06cc89ff1f6..2d78a45da8c0 100644
--- a/pkgs/development/python-modules/hidapi/default.nix
+++ b/pkgs/development/python-modules/hidapi/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, libusb1, udev, fetchPypi, buildPythonPackage, cython }:
+{ stdenv, libusb1, udev, darwin, fetchPypi, buildPythonPackage, cython }:
 
 buildPythonPackage rec {
   pname = "hidapi";
@@ -9,10 +9,13 @@ buildPythonPackage rec {
     sha256 = "e0be1aa6566979266a8fc845ab0e18613f4918cf2c977fe67050f5dc7e2a9a97";
   };
 
-  propagatedBuildInputs = [ libusb1 udev cython ];
+  propagatedBuildInputs =
+    stdenv.lib.optionals stdenv.isLinux [ libusb1 udev ] ++
+    stdenv.lib.optionals stdenv.isDarwin [ darwin.IOKit darwin.apple_sdk.frameworks.CoreFoundation ] ++
+    [ cython ];
 
   # Fix the USB backend library lookup
-  postPatch = ''
+  postPatch = stdenv.lib.optionalString stdenv.isLinux ''
     libusb=${libusb1.dev}/include/libusb-1.0
     test -d $libusb || { echo "ERROR: $libusb doesn't exist, please update/fix this build expression."; exit 1; }
     sed -i -e "s|/usr/include/libusb-1.0|$libusb|" setup.py