ref: f9216942946e320476d75cb77809de1b0792630f dir: /vs2019_project/ft2-clone/sdl/include/SDL2/SDL_revision.h/
#define SDL_REVISION "https://github.com/libsdl-org/SDL.git@25f9ed87ff6947d9576fc9d79dee0784e638ac58" #define SDL_REVISION_NUMBER 0