sdl2: Namespace SMALL_SCREEN
Namespace sdl2-client macro SMALL_SCREEN so that we can have control for it in global scale (set configure time for entire freeciv build). Maybe prefer suffix instead of prefix to make sure we don't conflict with sdl2 library.
Namespace sdl2-client macro SMALL_SCREEN so that we can have control for it in global scale (set configure time for entire freeciv build). Maybe prefer suffix instead of prefix to make sure we don't conflict with sdl2 library.