diff --git a/src/db/db/dbPlugin.cc b/src/db/db/dbPlugin.cc
index e69de29bb..7c322575f 100644
--- a/src/db/db/dbPlugin.cc
+++ b/src/db/db/dbPlugin.cc
@@ -0,0 +1,24 @@
+
+/*
+
+  KLayout Layout Viewer
+  Copyright (C) 2006-2020 Matthias Koefferlein
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+*/
+
+#include "dbPlugin.h"
+
diff --git a/src/db/db/gsiDeclDbManager.cc b/src/db/db/gsiDeclDbManager.cc
index 33d437dc5..e3a14b4c8 100644
--- a/src/db/db/gsiDeclDbManager.cc
+++ b/src/db/db/gsiDeclDbManager.cc
@@ -132,4 +132,5 @@ Class<db::Manager> decl_Manager ("db", "Manager",
   "This class has been introduced in version 0.19.\n"
 );
 
-}
\ No newline at end of file
+}
+
diff --git a/src/db/db/gsiDeclDbTechnologies.cc b/src/db/db/gsiDeclDbTechnologies.cc
index e92e31488..62fdf9685 100644
--- a/src/db/db/gsiDeclDbTechnologies.cc
+++ b/src/db/db/gsiDeclDbTechnologies.cc
@@ -1,3 +1,4 @@
+
 /*
 
   KLayout Layout Viewer
diff --git a/src/plugins/streamers/dxf/db_plugin/gsiDeclDbDXF.cc b/src/plugins/streamers/dxf/db_plugin/gsiDeclDbDXF.cc
index 3b16e644b..a25f5f6cb 100755
--- a/src/plugins/streamers/dxf/db_plugin/gsiDeclDbDXF.cc
+++ b/src/plugins/streamers/dxf/db_plugin/gsiDeclDbDXF.cc
@@ -383,4 +383,5 @@ gsi::ClassExt<db::SaveLayoutOptions> dxf_writer_options (
   ""
 );
 
-}
\ No newline at end of file
+}
+
diff --git a/src/plugins/streamers/oasis/db_plugin/gsiDeclDbOASIS.cc b/src/plugins/streamers/oasis/db_plugin/gsiDeclDbOASIS.cc
index 37608f494..0e8c45f46 100644
--- a/src/plugins/streamers/oasis/db_plugin/gsiDeclDbOASIS.cc
+++ b/src/plugins/streamers/oasis/db_plugin/gsiDeclDbOASIS.cc
@@ -292,4 +292,5 @@ gsi::ClassExt<db::SaveLayoutOptions> oasis_writer_options (
   ""
 );
 
-}
\ No newline at end of file
+}
+
diff --git a/src/plugins/tools/net_tracer/db_plugin/gsiDeclDbNetTracer.cc b/src/plugins/tools/net_tracer/db_plugin/gsiDeclDbNetTracer.cc
index c5606cd27..968d01661 100644
--- a/src/plugins/tools/net_tracer/db_plugin/gsiDeclDbNetTracer.cc
+++ b/src/plugins/tools/net_tracer/db_plugin/gsiDeclDbNetTracer.cc
@@ -1,3 +1,4 @@
+
 /*
 
   KLayout Layout Viewer
diff --git a/src/tl/tl/tlVector.cc b/src/tl/tl/tlVector.cc
index e69de29bb..c709838ae 100644
--- a/src/tl/tl/tlVector.cc
+++ b/src/tl/tl/tlVector.cc
@@ -0,0 +1,24 @@
+
+/*
+
+  KLayout Layout Viewer
+  Copyright (C) 2006-2020 Matthias Koefferlein
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+*/
+
+#include "dbVector.h"
+