[I] Stopping CppLite build does not kill compiler processes [netbeans]

["bbfgelman1 (via GitHub)" <gi...@apache.org>]

bbfgelman1 opened a new issue, #7064:
URL: https://github.com/apache/netbeans/issues/7064

   ### Apache NetBeans version
   
   Apache NetBeans 20
   
   ### What happened
   
   Stopping a build using the stop button on the "Output" pane does not kill all the compiler processes.
   
   The expected behavior of doing this during a long-running build is to kill the build tool (Ninja) as well as its child processes (GCC), or to at least kill the build tool in such a way that it is able to interrupt and clean up all the compilers.
   
   The actual behavior is that the child processes are not killed. All compilers running at the moment the build is stopped keep running. But they appear to be reparented to the init process (systemd).
   
   ### Language / Project Type / NetBeans Component
   
   C++ CppLite project
   
   ### How to reproduce
   
   Create a C++ program with many .cpp files that each take a long time to compile, and that uses CMake.
   
   Run CMake and tell it to use Ninja:
   
   ```
   cmake -S . -B build_dir -G Ninja -DCMAKE_EXPORT_COMPILE_COMMANDS=ON
   ```
   
   Add this as a new project to Netbeans using the Lightweight C/C++ Project type.
   
   Set the build command to invoke Ninja directly:
   
   ```
   ninja -C build_dir
   ```
   
   Start a build. Open a tool like `htop` in a terminal.
   
   Press the "Stop" button on the "Output" pane.
   
   Notice how all the gcc/g++ processes are still running.
   
   ### Did this work correctly in an earlier version?
   
   No / Don't know
   
   ### Operating System
   
   RHEL7 AMD64
   
   ### JDK
   
   jre-11-openjdk-11.0.22.0.7-1.el7_9.x86_64
   
   ### Apache NetBeans packaging
   
   Apache NetBeans binary zip
   
   ### Anything else
   
   This happens every time.
   
   It used to work correctly with Netbeans 8.2.
   
   ### Are you willing to submit a pull request?
   
   No


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