It might be easier to just run make clean after running make install. The make clean command deletes the dist directory.
I don’t see anything in my own dep directory after make install, so I’m not sure what to think about that.
You could automate by creating a script or batch file to run both commands. You could also add a command there to clean up dep however you want.
I don’t know how experienced you are with scripting, so let us know if you could use some help. I will be happy to show you.