diff -rupN --no-dereference netgen-6.2.2105/ng/Togl2.1/CMakeLists.txt netgen-6.2.2105-new/ng/Togl2.1/CMakeLists.txt
--- netgen-6.2.2105/ng/Togl2.1/CMakeLists.txt	2021-10-04 10:13:57.722143528 +0200
+++ netgen-6.2.2105-new/ng/Togl2.1/CMakeLists.txt	2021-10-04 10:13:57.858139103 +0200
@@ -25,6 +25,8 @@ else(WIN32)
 
   set_target_properties(togl PROPERTIES OUTPUT_NAME "ngtogl")
   set_target_properties(togl PROPERTIES VERSION ${NETGEN_VERSION_MAJOR}.${NETGEN_VERSION_MINOR})
+
+  install(TARGETS togl ${NG_INSTALL_DIR})
 endif(WIN32)
 
 target_link_libraries(togl ${OPENGL_LIBRARIES})