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How many different languages does Flycheck support?
Out of the box Flycheck supports over 40 different programming languages with more than 80 different syntax checking tools, and comes with a simple interface to define new syntax checkers. Many 3rd party extensions provide new syntax checkers and other features like alternative error displays or mode line indicators.
Which is better flymake or Flycheck for Emacs?
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. For a detailed comparison to Flymake see Flycheck versus Flymake.
Where can I find a Flycheck user guide?
For a gentle introduction into Flycheck features go through Quickstart guide. If Flycheck fails to run properly or gives you any error messages please take a look at the troubleshooting section which covers some common setup issues and helps you debug and fix problems with Flycheck. The User Guide provides installation and usage help for Flycheck.
Is there any warranty for the use of Flycheck?
Flycheck is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
What kind of Emacs do I need to use Flycheck?
Flycheck needs GNU Emacs 24.3+, 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!
Is there a way to contribute to Flycheck?
The Contributor Guide explains how to contribute to Flycheck. Flycheck is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
What’s the difference between flymake and Flycheck syntax checking?
For a detailed comparison to Flymake see Flycheck versus Flymake. 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: