diff -rupN --no-dereference OpenSceneGraph-OpenSceneGraph-3.6.5/examples/CMakeLists.txt OpenSceneGraph-OpenSceneGraph-3.6.5-new/examples/CMakeLists.txt

--- OpenSceneGraph-OpenSceneGraph-3.6.5/examples/CMakeLists.txt	2020-01-31 12:03:07.000000000 +0100

+++ OpenSceneGraph-OpenSceneGraph-3.6.5-new/examples/CMakeLists.txt	2021-11-13 21:34:02.524773210 +0100

@@ -205,11 +205,9 @@ IF(DYNAMIC_OPENSCENEGRAPH)

         ADD_SUBDIRECTORY(osgviewerFOX)

     ENDIF(FOX_FOUND)

-    IF   (wxWidgets_FOUND AND CMAKE_BUILD_TYPE)

-        IF (${CMAKE_BUILD_TYPE} STREQUAL "Release")

+    IF   (wxWidgets_FOUND)

             ADD_SUBDIRECTORY(osgviewerWX)

-        ENDIF()

-    ENDIF()

+    ENDIF(wxWidgets_FOUND)

     IF   (FLTK_FOUND AND FLTK_GL_LIBRARY)

         ADD_SUBDIRECTORY(osgviewerFLTK)