diff -rupN --no-dereference netgen-6.2.2103/ng/Togl2.1/CMakeLists.txt netgen-6.2.2103-new/ng/Togl2.1/CMakeLists.txt
--- netgen-6.2.2103/ng/Togl2.1/CMakeLists.txt	2021-06-07 12:54:51.824239332 +0200
+++ netgen-6.2.2103-new/ng/Togl2.1/CMakeLists.txt	2021-06-07 12:54:51.956239335 +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})