title: How to define the include & lib path when building pybind11 proj
body: <p>I am building a pybind11 project with Visual Studio (2017). The setup file is like below:</p>
  <pre><code>
  from setuptools import setup, Extension
  import pybind11
  
  # The following is for GCC compiler only.
  #cpp_args = ['-std=c++11', '-stdlib=libc++', '-mmacosx-version-min=10.7']
  cpp_args = []
  
  sfc_module = Extension(
      'test_sample',
      sources=['Test.cpp'],
      include_dirs=[pybind11.get_include()],
      language='c++',
      extra_compile_args=cpp_args,
      )
  
  setup(
      name='test_sample',
      version='1.0',
      description='Python package with Test C++ extension (PyBind11)',
      ext_modules=[sfc_module],
  )
  
  </code></pre>
  <p>Then in the windows power shell, I will run</p>
  <blockquote>
  <p>python setup.py build</p>
  </blockquote>
  <p>However it complains cannot find multiple include files, I believe it will complain about missing library files later too:</p>
  <pre><code>C:\VS2017Pro\VC\Tools\MSVC\xxxx\bin\HostX86\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -IC:\Anaconda3_CS\lib\site-packages\pybind11\include -IC:\Anaconda3_CS\include -IC:\Anaconda3_CS\include -IC:\VS2017Pro\VC\Tools\MSVC\xxxx\ATLMFC\include -IC:\VS2017Pro\VC\Tools\MSVC\xxxx\include /EHsc /TpCppPython.cpp /Fobuild\temp.win-amd64-3.7\Release\Test.obj
  Test.cpp
  
  Z:\test_pybind11\stdafx.h(8): fatal error C1083: Cannot open include file: 'targetver.h': No such file or directory
  </code></pre>
  <p>I know where this targetver.h is, just don't know how to add its location to the include path.</p>
  <p>Your help will be greatly appreciated.</p>