It's long been my experience...i've not touched an IDE in well more than 10 years
It's long been that your experience is outdated. A modern IDE will refactor C code just fine, and emacs is a pale shadow of a proper IDE. I understand you are proud to be using an old tool and doing things "the old fashioned way" but you are just using an objectively worse tool for this thing you're talking about throughout the thread. Find and replace is not the correct way to rename a method or variable for obvious reasons.
Comments
It's long been that your experience is outdated. A modern IDE will refactor C code just fine, and emacs is a pale shadow of a proper IDE. I understand you are proud to be using an old tool and doing things "the old fashioned way" but you are just using an objectively worse tool for this thing you're talking about throughout the thread. Find and replace is not the correct way to rename a method or variable for obvious reasons.