old_contents: from distutils.core import setup, Extension
  import numpy.distutils.misc_util
  
  c_ext = Extension("nansum", ["reduce2.c"])
  
  setup(
      ext_modules=[c_ext],
      include_dirs=numpy.distutils.misc_util.get_numpy_include_dirs(),
  )
  
new_contents: from distutils.core import setup, Extension
  import numpy as np
  
  c_ext = Extension("nansum", ["reduce2.c"])
  
  setup(
      ext_modules=[c_ext],
      include_dirs=np.get_include(),
  )
  
subject: remove reduce2 build warning