Fix fileno(get_pipe()) for MSVC
Fix fileno(get_pipe()) for MSVC

MSVC is unable to parse the code:
  fileno(get_pipe())
when directly as an argument for ppack() or punpack(). This may
be because fileno() is replaced with _fileno() in a #define.

git-svn-id: d023f1085a36f7a677188d00334e37d38ffecf51@954 64e312b2-a51f-0410-8e61-82d0ca0eb02a

krichter722/check,brarcher/check,krichter722/check,libcheck/check,brarcher/check,9fcc/check,libcheck/check,9fcc/check,brarcher/check,9fcc/check,9fcc/check,krichter722/check,libcheck/check,libcheck/check,brarcher/check,brarcher/check,libcheck/check,krichter722/check,krichter722/check,9fcc/check