Licence

Bibliothèques SFML

SFML est complétement gratuite pour toute utilisation, commerciale ou non, open-source ou non. C'est-à-dire que vous pouvez utiliser la SFML dans vos projets sans aucune restriction.
Une indication que vous utilisez la SFML n'est pas obligatoire, mais serait appréciée.

Le code source est fourni sous les termes de la licence zlib/png : 

SFML - Copyright (c) 2007-2008 Laurent Gomila

This software is provided 'as-is', without any express or
implied warranty. In no event will the authors be held
liable for any damages arising from the use of this software.

Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute
it freely, subject to the following restrictions:

1. The origin of this software must not be misrepresented;
   you must not claim that you wrote the original software.
   If you use this software in a product, an acknowledgment
   in the product documentation would be appreciated but
   is not required.

2. Altered source versions must be plainly marked as such,
   and must not be misrepresented as being the original software.

3. This notice may not be removed or altered from any
   source distribution.

Bibliothèques externes utilisées par SFML