DEPRECATED Use this function to get the revision number of SDL that is linked against your program.
int SDL_GetRevisionNumber(void)
Returns a number uniquely identifying the exact revision of the SDL library in use.
After SDL's migration to GitHub (before the 2.0.16 release), this function is marked deprecated and hardcoded to return zero. Don't call this anymore. SDL_GetRevision still works, and if SDL was carefully built, will return a git hash.