From 5f36c16ff56df4ac90ae18e3b4579d8832332ab2 Mon Sep 17 00:00:00 2001
From: Marco Hinz <mh.codebro@gmail.com>
Date: Mon, 30 Sep 2013 09:40:46 +0200
Subject: [PATCH] Test if 'sign unplace *' is supported

---
 autoload/sy.vim | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/autoload/sy.vim b/autoload/sy.vim
index 831d5d5..92e2c82 100644
--- a/autoload/sy.vim
+++ b/autoload/sy.vim
@@ -7,6 +7,13 @@ let b:autoloaded_sy = 1
 
 " Init: values {{{1
 let g:signify_sign_overwrite = get(g:, 'signify_sign_overwrite', 1)
+if g:signify_sign_overwrite && (v:version < 703 || (v:version == 703 && !has('patch596')))
+  echohl WarningMsg
+  echomsg 'signify: Vim is outdated. Sign overwriting will be disabled.'
+  echohl NONE
+  let g:signify_sign_overwrite = 0
+endif
+
 let g:id_top = 0x100
 let g:sy_cache = {}