执行
$ yum install libsdl-dev
报错：No package libsdl-dev available.
解决办法：
$ yum search sdl | grep devel
显示sdl是大写的：
SDL-devel.i686 : Files needed to develop Simple DirectMedia Layer applications
SDL-devel.x86_64 : Files needed to develop Simple DirectMedia Layer applications
执行下面命令即可：
$ yum install SDL-devel
还有sdl2
yum install SDL2-devel
