Cmake error on RPI

[yllawwally]

I'm trying to install SFML on a RPI3.  I'm following the compile with cmake tutorial https://en.sfml-dev.org/tutorials/2.5/compile-with-cmake.php . When I get to the step to configure, I get an error about x11. 

CMake Error at cmake/Macros.cmake:296 (message):
  Missing item in X11_X11_LIB;X11_Xrandr_LIB

[eXpl0it3r]

You'll have to install X11 to compile it. There are currently efforts being made to provide alternatives, especially regarding RPI: https://en.sfml-dev.org/forums/index.php?topic=27102.0