From ab9f109fd557ae1f9b8d28f92540a5aa8d4d0300 Mon Sep 17 00:00:00 2001
From: tv <tv@krebsco.de>
Date: Sun, 3 Jul 2016 20:49:02 +0200
Subject: tv vim: unlet b:current_syntax if exists

---
 tv/2configs/vim.nix | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tv/2configs/vim.nix b/tv/2configs/vim.nix
index 0a8466202..86c5d05d6 100644
--- a/tv/2configs/vim.nix
+++ b/tv/2configs/vim.nix
@@ -180,7 +180,9 @@ let
           sigil = ''\(${concatStringsSep ''\|'' startAlts}\)[ \t\r\n]*'';
         in /* vim */ ''
           syn include @nix_${lang}_syntax syntax/${lang}.vim
-          unlet b:current_syntax
+          if exists("b:current_syntax")
+            unlet b:current_syntax
+          endif
 
           syn match nix_${lang}_sigil
             \ X${replaceStrings ["X"] ["\\X"] sigil}\ze\('''\|"\)X
-- 
cgit v1.2.3