content: import os
  from os.path import join
  
  import numpy
  from numpy.distutils.misc_util import Configuration
  from sklearn._build_utils import get_blas_info
  
  
  def configuration(parent_package="", top_path=None):
      config = Configuration("manifold", parent_package, top_path)
      libraries = []
      if os.name == 'posix':
          libraries.append('m')
      config.add_extension("_utils",
                           sources=["_utils.c"],
                           include_dirs=[numpy.get_include()],
                           libraries=libraries,
                           extra_compile_args=["-O3"])
      cblas_libs, blas_info = get_blas_info()
      eca = blas_info.pop('extra_compile_args', [])
      eca.append("-O4")
      config.add_extension("_barnes_hut_tsne",
                           libraries=cblas_libs,
                           sources=["_barnes_hut_tsne.c"],
                           include_dirs=[join('..', 'src', 'cblas'),
                                         numpy.get_include(),
                                         blas_info.pop('include_dirs', [])],
                           extra_compile_args=eca, **blas_info)
  
      config.add_subpackage('tests')
  
      return config
  
  if __name__ == "__main__":
      from numpy.distutils.core import setup
      setup(**configuration().todict())
  