These should be __inline__, not inline.
Workaround older libpulse that fails in pa_context_new() with a NULL appname.

Newer libpulses do sane defaults if you pass a NULL there. In lieu of a
proper way to specify this in SDL at the moment, this will do.

Fixes Bugzilla #1119.
Fixed stack smashing crash when using the GCC compiled DLL with Visual Studio.