From 78e557806e7bdd905a77c896d31a3365182b26c8 Mon Sep 17 00:00:00 2001
From: Jethro Kuan <jethrokuan95@gmail.com>
Date: Thu, 8 Nov 2018 22:06:13 +0800
Subject: [PATCH] add option to build without Tensorflow

---
 pkgs/development/python-modules/gin-config/default.nix | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/python-modules/gin-config/default.nix b/pkgs/development/python-modules/gin-config/default.nix
index 9203a6cf33ad..d1852a1392af 100644
--- a/pkgs/development/python-modules/gin-config/default.nix
+++ b/pkgs/development/python-modules/gin-config/default.nix
@@ -5,6 +5,7 @@
 , enum34
 , absl-py
 , tensorflow
+, withTensorflow ? true
 }:
 
 buildPythonPackage rec {
@@ -17,7 +18,7 @@ buildPythonPackage rec {
 
   };
 
-  buildInputs = [ six enum34 tensorflow ];
+  propogatedBuildInputs = [ six enum34 ] + lib.optional withTensorflow tensorflow;
   checkInputs = [ absl-py tensorflow ];
 
   meta = with lib; {