Sort the compiler flags, remove most of -Wno

[evelikov]

Nothing too spectacular here ... Although the sorting does break the Pink Floyd meme ;-)

Seems like the Android folks have copied it literally - too subtle?

[lucasdemarchi]

Nothing too spectacular here ... Although the sorting does break the Pink Floyd meme ;-)

ok... I added a commit on top. It was hard to let it go: it was one of the first songs I learned to play on guitar. But it's the right thing to do.

[evelikov]

Ftr I don't mind keeping it and/or moving things a bit so it makes sense.

I even tried keeping it in meson, although meson complains loudly (with no way to silence) when we manually try to use -Wall :-(

[lucasdemarchi]

Applied, thanks

[lucasdemarchi]