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Re:Let's write a setjmp by kevin_thibedeau on Sunday February 12, 2023 @01:56PM (#34765656)
You can have all that with m4. It's a perfectly suitable C preprocessor.
Re:Let's write a setjmp by badsectoracula on Friday February 24, 2023 @01:43AM (#34921622)
m4 is a bit weird but if you can use that you can use any preprocessor - including a custom one.

The issue is that chances are said preprocessor wont work with editors and IDEs that can parse C to provide tools like syntax completion, jumping to definitions, etc - if anything you'd be lucky if you get working line numbers t use a debugger with.