diff --git a/libsrc/general/CMakeLists.txt b/libsrc/general/CMakeLists.txt
index eb97a1c0..3bd0aba1 100644
--- a/libsrc/general/CMakeLists.txt
+++ b/libsrc/general/CMakeLists.txt
@@ -1,5 +1,4 @@
 target_sources(nglib PRIVATE
-    dynamicmem.cpp
     gzstream.cpp
     hashtabl.cpp
     mystring.cpp
@@ -13,12 +12,15 @@ target_sources(nglib PRIVATE
     table.cpp
 )
 
+# dynamicmem.cpp
+
 install(FILES
   ngarray.hpp autodiff.hpp autoptr.hpp ngbitarray.hpp
-  dynamicmem.hpp hashtabl.hpp myadt.hpp
+  hashtabl.hpp myadt.hpp
   mystring.hpp netgenout.hpp ngpython.hpp
   optmem.hpp parthreads.hpp seti.hpp sort.hpp
   spbita2d.hpp stack.hpp table.hpp template.hpp
   gzstream.h
   DESTINATION ${NG_INSTALL_DIR_INCLUDE}/general COMPONENT netgen_devel
 )
+# dynamicmem.hpp 
diff --git a/libsrc/general/dynamicmem.hpp b/libsrc/general/dynamicmem.hpp
index 089a124d..612aae5b 100644
--- a/libsrc/general/dynamicmem.hpp
+++ b/libsrc/general/dynamicmem.hpp
@@ -1,3 +1,6 @@
+not needed anymore ? 
+
+
 #ifndef FILE_DYNAMICMEM
 #define FILE_DYNAMICMEM
 
diff --git a/libsrc/general/myadt.hpp b/libsrc/general/myadt.hpp
index 871de4f1..d71e45b9 100644
--- a/libsrc/general/myadt.hpp
+++ b/libsrc/general/myadt.hpp
@@ -25,7 +25,7 @@ namespace netgen
 }
 #include "parthreads.hpp"
 // #include "moveablemem.hpp"
-#include "dynamicmem.hpp"
+// #include "dynamicmem.hpp"
 
 #include "template.hpp"
 #include "ngarray.hpp"