You have to install the library with all its components on your system.
On a Debian/Ubuntu machine you can simply do so by running the following command:
sudo apt-get install libsfml-devThis will install libsfml-audio2.5, libsfml-graphics2.5, libsfml-network2.5, libsfml-system2.5 and libsfml-window2.5.
If you also want SFML documentation you can install it by running:
sudo apt-get install libsfml-docAnd you are good to go, CMake should be able to find SFML in one of the following directories:
- ${SFML_ROOT}
- $ENV{SFML_ROOT}
- ~/Library/Frameworks
- /Library/Frameworks
- /usr/local
- /usr
- /sw
- /opt/local
- /opt/csw
- /opt
Note: if you want to install SFML to a custom directory, you can append -DSFML_ROOT=path/to/sfml to your cmake build command.