Change Emacs Default Coding System

Question

My problem stems from Emacs inserting the coding system headers into source files containing non-ascii characters:

# -*- coding: utf-8 -*-

My c

Answer 1

In root of your project create file called .dir-locals.el with content:

((nil . ((buffer-file-coding-system . utf-8))))

It will apply this coding to any mode and file. You may see more info here https://www.gnu.org/software/emacs/manual/html_node/emacs/Directory-Variables.html