This would only apply if they were distributing the GPL licensed code alongside their own code.
If my MIT-licensed one-line Python library has this line of code…
run([“bash”, “-c”, “echo hello”])
…I’m not suddenly subject to bash’s licensing. For anyone wanting to run my stuff though, they’re going to need to make sure they themselves have bash installed.
(But, to argue against my own point, if an OS vendor ships my library alongside a copy of bash, do they have to now relicense my library as GPL?)
If my MIT-licensed one-line Python library has this line of code…
…I’m not suddenly subject to bash’s licensing. For anyone wanting to run my stuff though, they’re going to need to make sure they themselves have bash installed.(But, to argue against my own point, if an OS vendor ships my library alongside a copy of bash, do they have to now relicense my library as GPL?)