From 20268f6382dccc77bc9aba0e9b067c3fdf03613e Mon Sep 17 00:00:00 2001
From: Jude Taylor <me@jude.bio>
Date: Fri, 26 Jun 2015 09:53:28 -0700
Subject: [PATCH] darwin purity: libusb1 (depend on udev on linux only)

---
 pkgs/development/libraries/libusb1/default.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/development/libraries/libusb1/default.nix b/pkgs/development/libraries/libusb1/default.nix
index b2d75e155540..75d6bdb4cc6a 100644
--- a/pkgs/development/libraries/libusb1/default.nix
+++ b/pkgs/development/libraries/libusb1/default.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
 
   NIX_LDFLAGS = stdenv.lib.optionalString stdenv.isLinux "-lgcc_s";
 
-  preFixup = ''
+  preFixup = stdenv.lib.optionalString stdenv.isLinux ''
     sed 's,-ludev,-L${udev}/lib -ludev,' -i $out/lib/libusb-1.0.la
   '';