Is there a tool or some source I could compile that would tell me all the posix features on that particular system?
As I understand it, a system might have compliance to one of three different posix versions and even then maybe only partial compliance. I already know that my system has some posix 1995 features, like pthreads, but there is a long list of posix features I am not sure about. Rather than using trial and error, I'd prefer a tool that would tell me what is available so I can go off and read about it.