1.1 --- a/lemon/concepts/graph_components.h	Wed Sep 12 17:51:20 2012 +0200
     1.2 +++ b/lemon/concepts/graph_components.h	Thu Sep 13 11:52:50 2012 +0200
     1.3 @@ -494,6 +494,8 @@
     1.4            _GraphItemIt it2;
     1.5            _GraphItemIt it3 = it1;
     1.6            _GraphItemIt it4 = INVALID;
     1.7 +          ignore_unused_variable_warning(it3);
     1.8 +          ignore_unused_variable_warning(it4);
     1.9  
    1.10            it2 = ++it1;
    1.11            ++it2 = it1;
    1.12 @@ -583,6 +585,8 @@
    1.13            _GraphIncIt it2;
    1.14            _GraphIncIt it3 = it1;
    1.15            _GraphIncIt it4 = INVALID;
    1.16 +          ignore_unused_variable_warning(it3);
    1.17 +          ignore_unused_variable_warning(it4);
    1.18  
    1.19            it2 = ++it1;
    1.20            ++it2 = it1;