From cc5dcdfb3334ba9966a07d0749ae81d5563f12e3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jurko=20Gospodneti=C4=87?= <jurko.gospodnetic@pke.hr>
Date: Fri, 23 May 2008 08:59:49 +0000
Subject: [PATCH] Worked around an unused variable compiler warning displayed
 in concept_check.hpp when _ITERATOR_ is not defined.

[SVN r45671]
---
 include/boost/concept_check.hpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/boost/concept_check.hpp b/include/boost/concept_check.hpp
index 4e9fddf..09f6e22 100644
--- a/include/boost/concept_check.hpp
+++ b/include/boost/concept_check.hpp
@@ -144,6 +144,8 @@ namespace boost
     void const_constraints(const TT& b) {
 #if !defined(_ITERATOR_) // back_insert_iterator broken for VC++ STL
       a = b;              // const required for argument to assignment
+#else
+      ignore_unused_variable_warning(b);
 #endif
     }
    private: