From d8f7873d5359cc0ff3b7a18ac86b79536b2458b9 Mon Sep 17 00:00:00 2001
From: Matthias Koefferlein <matthias@koefferlein.de>
Date: Sat, 8 May 2021 23:16:27 +0200
Subject: [PATCH] Fixed #793 - problem was a wrong declaration of the
 iterator's return value

---
 src/img/img/gsiDeclImg.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/img/img/gsiDeclImg.cc b/src/img/img/gsiDeclImg.cc
index 3bc83c39a..ebe23675e 100644
--- a/src/img/img/gsiDeclImg.cc
+++ b/src/img/img/gsiDeclImg.cc
@@ -1282,7 +1282,7 @@ public:
   typedef ImageRef value_type;
   typedef std::map<img::Service::obj_iterator, unsigned int>::const_iterator iterator_type;
   typedef void pointer; 
-  typedef const value_type &reference;
+  typedef value_type reference;
   typedef std::forward_iterator_tag iterator_category;
   typedef void difference_type;