解决setup.py中的标头依赖关系

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bpf = Extension(name=\'bpf\',
        sources=[ \'pcs/bpf/bpf.pyx\' ],
        include_dirs=[\'/usr/include/pcap\'],
        library_dirs=[\'/usr/lib\'],
        libraries=[\'pcap\']
    )

winpcap development is free. http://www.winpcap.org/install/bin/WpdPack_4_0_2.zip

1) Download MinGW32. Install to c:\\wingw32
2) path=%path%;c:\\wingw32\\bin
3) Download winpcap development pack from above. Unzip to c:\\WpdPack
4) From pypcap-1.1 directory. 
   > python .\\setup.py --with-pcap=\"C:\\WpdPack\"
   > python .\\setup.py build -cmingw32
   > python .\\setup.py install