From 4ad3ca961587402953ef85abc56daec2c604d365 Mon Sep 17 00:00:00 2001
From: Jonathan Kotta <jpkotta@packetdigital.com>
Date: Tue, 17 May 2016 17:27:42 -0500
Subject: [PATCH] don't assume vc-git-diff-switches is defined

---
 diff-hl.el | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/diff-hl.el b/diff-hl.el
index c52bf0e2a..017e5ca59 100644
--- a/diff-hl.el
+++ b/diff-hl.el
@@ -213,7 +213,8 @@
           ;; https://github.com/dgutov/diff-hl/issues/67
           (cons "-U0"
                 ;; https://github.com/dgutov/diff-hl/issues/9
-                (and (listp vc-git-diff-switches)
+                (and (boundp 'vc-git-diff-switches)
+                     (listp vc-git-diff-switches)
                      (cl-remove-if-not
                       (lambda (arg)
                         (member arg '("--histogram" "--patience" "--minimal")))
-- 
2.39.2