Trying to add google play c++ sdk to android project

Hello guys, I’m trying to get to compile the sdk from google play for android in my sdl2 game (android c++ library .so project) what i do is to add the GooglePlay SDK into the client app project, and including a file from the includes directory, I’ve posted the errors from compilation in a pastebin here:
and i’m trying to fix those it, looks like it is not using the right c++ sdk from android, no?