defined.
Fixed if statement in __WS_FD_SET2 which used a = where a == is
needed, in additition the if did not have its outer set of
parenthesis.
Removed parentheses around type to be cast in __WS_FD_SET macro.
Removed WS macro usage from within other macros because the WS macro
is undefined when these macros are expanded.
Added WINAPI attributee to select definition.