From 756a650b2fc4a6a9164f126cb3f61c66d2de17df Mon Sep 17 00:00:00 2001
From: John Wellbelove <smartgit@wellbelove.co.uk>
Date: Sun, 13 Mar 2016 12:19:41 +0000
Subject: [PATCH] Fixed warning

---
 src/intrusive_list.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/intrusive_list.h b/src/intrusive_list.h
index 5b6c05ff..e08c3a49 100644
--- a/src/intrusive_list.h
+++ b/src/intrusive_list.h
@@ -1038,7 +1038,9 @@ namespace etl
     /// Counter type based on count option.
     //*************************************************************************
     template <const size_t OPTION, bool dummy = true>
-    class counter_type;
+    class counter_type
+    {
+    };
 
     //*************************************************************************
     /// Slow type.