From e272080f0df44ef6cc7c47c6ef745251096d91e1 Mon Sep 17 00:00:00 2001
From: Tim Pope <code@tpope.net>
Date: Fri, 26 May 2017 19:34:15 -0400
Subject: [PATCH] Don't trust CSApprox_loaded

Capitalized variables can end up in session files, folks.  Don't use
them for include guards.
---
 plugin/fugitive.vim | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/plugin/fugitive.vim b/plugin/fugitive.vim
index 9cda172..b962a7a 100644
--- a/plugin/fugitive.vim
+++ b/plugin/fugitive.vim
@@ -2197,7 +2197,7 @@ function! s:BlameSyntax() abort
       continue
     endif
     let seen[hash] = 1
-    if &t_Co > 16 && exists('g:CSApprox_loaded')
+    if &t_Co > 16 && get(g:, 'CSApprox_loaded') && !empty(findfile('autoload/csapprox/per_component.vim', escape(&rtp, ' ')))
           \ && empty(get(s:hash_colors, hash))
       let [s, r, g, b; __] = map(matchlist(hash, '\(\x\x\)\(\x\x\)\(\x\x\)'), 'str2nr(v:val,16)')
       let color = csapprox#per_component#Approximate(r, g, b)