fix accessing std::list functions from within PtrList

diff --git a/utils/asyncio_ptr_list.hpp b/utils/asyncio_ptr_list.hpp
index c26d631..453760d 100644 (file)
--- a/utils/asyncio_ptr_list.hpp
+++ b/utils/asyncio_ptr_list.hpp
@@ -143,7 +143,7 @@ class PtrList
                 // nothing to do since item is already in the list
                 return;
             }
-            push_back(item);
+            this->push_back(item);
         } // eo add
 
 
@@ -181,7 +181,7 @@ class PtrList
                 return;
             }
             // remove the NULL elements now:
-            erase(
+            this->erase(
                 std::remove( inherited::begin(), inherited::end(), (T*)NULL),
                 inherited::end() );
             Dirty= false;