diff -rupN --no-dereference netgen-6.2.2105/libsrc/include/meshing.hpp netgen-6.2.2105-new/libsrc/include/meshing.hpp
--- netgen-6.2.2105/libsrc/include/meshing.hpp	2021-10-02 15:32:02.000000000 +0200
+++ netgen-6.2.2105-new/libsrc/include/meshing.hpp	2021-10-04 10:13:57.725143430 +0200
@@ -1 +1 @@
-#include <../meshing/meshing.hpp>
+#include "../meshing/meshing.hpp"
diff -rupN --no-dereference netgen-6.2.2105/libsrc/include/myadt.hpp netgen-6.2.2105-new/libsrc/include/myadt.hpp
--- netgen-6.2.2105/libsrc/include/myadt.hpp	2021-10-02 15:32:02.000000000 +0200
+++ netgen-6.2.2105-new/libsrc/include/myadt.hpp	2021-10-04 10:13:57.725143430 +0200
@@ -1 +1 @@
-#include <../general/myadt.hpp>
+#include "../general/myadt.hpp"
diff -rupN --no-dereference netgen-6.2.2105/libsrc/include/stlgeom.hpp netgen-6.2.2105-new/libsrc/include/stlgeom.hpp
--- netgen-6.2.2105/libsrc/include/stlgeom.hpp	2021-10-02 15:32:02.000000000 +0200
+++ netgen-6.2.2105-new/libsrc/include/stlgeom.hpp	2021-10-04 10:13:57.726143397 +0200
@@ -1 +1 @@
-#include <../stlgeom/stlgeom.hpp>
+#include "../stlgeom/stlgeom.hpp"