Flycheck is a modern on-the-fly syntax checking extension for GNU Emacs, intended as replacement for the older Flymake extension which is part of GNU Emacs.
It uses various syntax checking and linting tools to automatically check the contents of buffers while you type, and reports warnings and errors directly in the buffer, or in an optional error list:
Many 3rd party extensions provide new syntax checkers and other features like alternative error displays or mode line indicators.
Flycheck needs GNU Emacs 24.1 or newer, and works best on Unix systems. Windows users, please be aware that Flycheck does not support Windows officially, although it should mostly work fine on Windows. See Windows support and watch out for known Windows issues!
Install some syntax checker tools and type the following in your
*scratch* buffer and run
(require 'package) (add-to-list 'package-archives '("melpa" . "http://stable.melpa.org/packages/") t) (package-initialize) (package-install 'flycheck) (global-flycheck-mode)
These are the latest news about Flycheck and it’s community: