*** 'sdl-config --version' returned 1.1.7, but the minimum version
*** of SDL required is 1.2.7. If sdl-config is correct, then it is
*** best to upgrade to the required version.
*** If sdl-config was wrong, set the environment variable SDL_CONFIG
*** to point to the correct copy of sdl-config, and remove the file
*** config.cache before re-running configure
no
configure: error: *** Please upgrade your SDL version
要怎么装SDL才能玩游戏,请教各位了谢谢