cpp-options for Windows need an update again (probably) to fix our broken CI

[Mikolaj]

This line

https://github.com/haskell-game/sdl2/blame/master/sdl2.cabal#L168

was written twice already and perhaps it needs another tweak to work, because otherwise we get in https://github.com/haskell-game/sdl2/actions/runs/3732668333/jobs/6332423036#step:9:21

Missing (or bad) C libraries: SDL2, SDL2main, SDL2

I wonder if something like

cpp-options: -D_SDL_main_h -DSDL_main_h_ -DSDLmain_h_

would do the trick, but I can't easily check, because

~/r/sdl2$ git push --set-upstream origin mikolaj/tweak-windows-cpp-options
ERROR: Permission to haskell-game/sdl2.git denied to Mikolaj.
fatal: Could not read from remote repository.

Halp!

[Mikolaj]

Nope -DSDLmain_h_ doesn't work.

[liamzee]

Use a msys workaround; i.e, get access to msys and use the older mingw msys packages (around 2.0.x) to get it to compile.