How to convert ARC project to Non-ARC?

Question

As per my knowledge, I know that we use -fno-objc-arc flag to disable ARC for files that NOT support ARC in an ARC project.

And also we can use -fobjc-arc flag to enable ARC for files support ARC in a Non-ARC project.

But if I want to convert my ARC project(not particular file) to Non-ARC project, then how should I go ahead for the same?

Anyone please brief me about the same.

Thanks in Advance.