vchoi_fork

[svn-r2747] 
Purpose:
    Detect whether the system has the netinet/tcp.h header file.
Description:
    The Stream VFD uses setsockopt(2) to set TCP_NODELAY on an opened
    socket. This constant is defined normally in netinet/tcp.h
    except for GNU cc under Windows where this header doesn't exist.
Platforms tested:
    Windows NT, GNU cc