eclipse-plugins: make: unknown option -- jobserver-auth=gmake_semaphore_172 when using post-build steps

Hi @ilg-ul ,

When I am using C/C++ Build -> Settings -> Build Steps and add post build steps as below, and save it, and then rebuild it, I will face this issue in Windows.

I think this is caused by && not recognized by windows, I need to disable auto makefile generation and change it like this, then this issue will disappear.

If I want to fix it in this plugin, how can I fix it.

Thanks