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)