From e1dc4d8ea82ebeb1a96113facab3f7f0ab7d882f Mon Sep 17 00:00:00 2001
From: "Jason \\\"Don\\\" O'Conal" <lovek323@gmail.com>
Date: Fri, 6 Sep 2013 09:00:56 +1000
Subject: [PATCH] libusb1: fix build on darwin via dropping udev (close #920)

vcunat edit: we have udev (systemd) only on Linux systems,
extend platforms so we know about breakages from Hydra.
---
 pkgs/development/libraries/libusb1/default.nix | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/libraries/libusb1/default.nix b/pkgs/development/libraries/libusb1/default.nix
index a39e33f4f2729..c01baa2fd0f64 100644
--- a/pkgs/development/libraries/libusb1/default.nix
+++ b/pkgs/development/libraries/libusb1/default.nix
@@ -9,12 +9,12 @@ stdenv.mkDerivation rec {
   };
 
   buildInputs = [ pkgconfig ];
-  propagatedBuildInputs = [ udev ];
+  propagatedBuildInputs = stdenv.lib.optional (stdenv.isLinux) udev;
 
   meta = {
     homepage = http://www.libusb.org;
     description = "User-space USB library";
-    platforms = stdenv.lib.platforms.linux;
+    platforms = stdenv.lib.platforms.unix;
     maintainers = [ stdenv.lib.maintainers.urkud ];
   };
 }