diff -rupN --no-dereference netgen-6.2.2101/ng/CMakeLists.txt netgen-6.2.2101-new/ng/CMakeLists.txt

--- netgen-6.2.2101/ng/CMakeLists.txt	2021-01-24 22:34:32.573549791 +0100

+++ netgen-6.2.2101-new/ng/CMakeLists.txt	2021-01-24 22:34:32.618549464 +0100

@@ -21,6 +21,7 @@ if(USE_GUI)

     )

     add_executable(netgen ngappinit.cpp)

+    set_target_properties(netgen PROPERTIES OUTPUT_NAME netgen-mesher)

     if(WIN32)

       target_sources(netgen PRIVATE ../windows/netgen.rc)

     endif(WIN32)