Ask HN: What is the SDL.h file in SuperTux?

• supertux

  7 2,439 9.7 C++

  SuperTux source code

  

Looking at the repo for SuperTux as featured here in https://news.ycombinator.com/item?id=39528726 and trying to understand how the cross platform aspect works. Am I correct in my thoughts that it's OpenGL based, using a cross platform library called Simple DirectMedia Layer aka SDL, found at https://www.libsdl.org?

I see a frequently occurring header file called SDL.h, but when I search the repo at https://github.com/SuperTux/supertux I can't find it.

What is SDL.h and why am I unable to locate it?

• SDL

  9 394 4.8 C

  DEPRECATED: Official development moved to GitHub

I don't know for sure, but could it be this?

https://github.com/libsdl-org/SDL

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