From 34a2c12be83b63a5e93b81e822116051a7999b4d Mon Sep 17 00:00:00 2001
From: Ian Cordasco <graffatcolmingov@gmail.com>
Date: Thu, 11 Sep 2014 20:14:07 -0500
Subject: [PATCH] Disable multiprocessing when using --diff

Fixed #166
---
 flake8/engine.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/flake8/engine.py b/flake8/engine.py
index fe26fc4..dd142a3 100644
--- a/flake8/engine.py
+++ b/flake8/engine.py
@@ -92,6 +92,9 @@ def get_style_guide(**kwargs):
     for options_hook in options_hooks:
         options_hook(options)
 
+    if options.diff:
+        options.jobs = None
+
     if multiprocessing and options.jobs:
         if options.jobs.isdigit():
             n_jobs = int(options.jobs)