From d40894cbeaa41e314602a490f67627c4ef548eb7 Mon Sep 17 00:00:00 2001
From: Robert Scott <code@humanleg.org.uk>
Date: Mon, 22 Apr 2019 12:34:12 +0100
Subject: [PATCH] pythonPackages.box2d: remove unnecessary pkgs-box2d
 buildInput

this dependency turns out to be completely unnecessary - the pypi
package includes its own bundled copy of the source (i know - ew.)
and building without pkgs-box2d results in a binary-identical .so.

this has the side-effect of enabling this package on darwin, which was
previously restricted by the apparently linux-only pkgs-box2d.
---
 pkgs/development/python-modules/box2d/default.nix | 2 --
 pkgs/top-level/python-packages.nix                | 2 +-
 2 files changed, 1 insertion(+), 3 deletions(-)

diff --git a/pkgs/development/python-modules/box2d/default.nix b/pkgs/development/python-modules/box2d/default.nix
index cd0087a84ab..5870bdcdb73 100644
--- a/pkgs/development/python-modules/box2d/default.nix
+++ b/pkgs/development/python-modules/box2d/default.nix
@@ -2,7 +2,6 @@
 , buildPythonPackage
 , fetchPypi
 , swig2
-, pkgs-box2d
 , isPy3k
 }:
 
@@ -21,7 +20,6 @@ buildPythonPackage rec {
   '';
 
   nativeBuildInputs = [ swig2 ];
-  buildInputs = [ pkgs-box2d ];
 
   # tests not included with pypi release
   doCheck = false;
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 94f062a6dc1..85c961a40e9 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -1314,7 +1314,7 @@ in {
 
   bottle = callPackage ../development/python-modules/bottle { };
 
-  box2d = callPackage ../development/python-modules/box2d { pkgs-box2d = pkgs.box2d; };
+  box2d = callPackage ../development/python-modules/box2d { };
 
   branca = callPackage ../development/python-modules/branca { };