old_contents: #   Copyright 2012 Sergey Kirillov
  #
  #   Licensed under the Apache License, Version 2.0 (the "License");
  #   you may not use this file except in compliance with the License.
  #   You may obtain a copy of the License at
  #
  #       http://www.apache.org/licenses/LICENSE-2.0
  #
  #   Unless required by applicable law or agreed to in writing, software
  #   distributed under the License is distributed on an "AS IS" BASIS,
  #   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  #   See the License for the specific language governing permissions and
  #   limitations under the License.
  #
  
  from distutils.extension import Extension
  from setuptools import setup, Extension
  
  try:
      from Cython.Distutils import build_ext
  except ImportError:
      print("No Cython installed. Building from pregenerated C source.")
      build_ext = None
  
  import os.path
  here = os.path.dirname(os.path.abspath(__file__))
  
  libsass_sources = [
      'libsass/selector.cpp', 
      'libsass/eval_apply.cpp', 
      'libsass/node_emitters.cpp', 
      'libsass/document.cpp', 
      'libsass/prelexer.cpp', 
      'libsass/node_factory.cpp', 
      'libsass/functions.cpp', 
      'libsass/constants.cpp', 
      'libsass/node.cpp', 
      'libsass/context.cpp', 
      'libsass/document_parser.cpp', 
      'libsass/sass_interface.cpp'
  ]
  
  ext_modules = [Extension("sass", 
                 libsass_sources + ["sass.pyx"],
                 libraries=['stdc++'],
                 library_dirs=['./libsass'],
                 include_dirs=['.', 'libsass'],
                 language='c++'
  )]
  
  cmdclass = {}
  if build_ext:
      cmdclass = {'build_ext': build_ext}
  
  
  setup(
    name = 'sass',
    cmdclass = cmdclass,
    ext_modules = ext_modules,
    version = '2.0',
    author = 'Sergey Kirilov',
    author_email = 'sergey.kirillov@gmail.com',
    url='https://github.com/pistolero/python-scss', 
    install_requires=[],
    extras_require = {
  #    'develop': ['Cython']
    },
    license="Apache License 2.0",   
    keywords="sass scss libsass",  
    description='Python bindings for libsass',
    long_description=open(os.path.join(here, 'README.rst'), 'rb').read().decode('utf-8')    
  )
  
new_contents: #   Copyright 2012 Sergey Kirillov
  #
  #   Licensed under the Apache License, Version 2.0 (the "License");
  #   you may not use this file except in compliance with the License.
  #   You may obtain a copy of the License at
  #
  #       http://www.apache.org/licenses/LICENSE-2.0
  #
  #   Unless required by applicable law or agreed to in writing, software
  #   distributed under the License is distributed on an "AS IS" BASIS,
  #   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  #   See the License for the specific language governing permissions and
  #   limitations under the License.
  #
  
  from distutils.extension import Extension
  from setuptools import setup, Extension
  
  try:
      from Cython.Distutils import build_ext
  except ImportError:
      print("No Cython installed. Building from pregenerated C source.")
      build_ext = None
  
  import os.path
  here = os.path.dirname(os.path.abspath(__file__))
  
  libsass_sources = [
      'libsass/ast.cpp',
      'libsass/base64vlq.cpp',
      'libsass/bind.cpp',
      'libsass/constants.cpp',
      'libsass/context.cpp',
      'libsass/contextualize.cpp',
      'libsass/copy_c_str.cpp',
      'libsass/emscripten_wrapper.cpp',
      'libsass/error_handling.cpp',
      'libsass/eval.cpp',
      'libsass/expand.cpp',
      'libsass/extend.cpp',
      'libsass/file.cpp',
      'libsass/functions.cpp',
      'libsass/inspect.cpp',
      'libsass/output_compressed.cpp',
      'libsass/output_nested.cpp',
      'libsass/parser.cpp',
      'libsass/prelexer.cpp',
      'libsass/sassc++.cpp',
      'libsass/sass.cpp',
      'libsass/sass_interface.cpp',
      'libsass/source_map.cpp',
      'libsass/test_paths.cpp',
      'libsass/test_selector_difference.cpp',
      'libsass/test_specificity.cpp',
      'libsass/test_subset_map.cpp',
      'libsass/test_superselector.cpp',
      'libsass/test_unification.cpp',
      'libsass/to_c.cpp',
      'libsass/to_string.cpp',
      'libsass/trim.cpp',
      'libsass/units.cpp'
  ]
  
  ext_modules = [Extension("sass", 
                 libsass_sources + ["sass.pyx"],
                 libraries=['stdc++'],
                 library_dirs=['./libsass'],
                 include_dirs=['.', 'libsass'],
                 language='c++'
  )]
  
  cmdclass = {}
  if build_ext:
      cmdclass = {'build_ext': build_ext}
  
  
  setup(
    name = 'sass',
    cmdclass = cmdclass,
    ext_modules = ext_modules,
    version = '2.0',
    author = 'Sergey Kirilov',
    author_email = 'sergey.kirillov@gmail.com',
    url='https://github.com/pistolero/python-scss', 
    install_requires=[],
    extras_require = {
  #    'develop': ['Cython']
    },
    license="Apache License 2.0",   
    keywords="sass scss libsass",  
    description='Python bindings for libsass',
    long_description=open(os.path.join(here, 'README.rst'), 'rb').read().decode('utf-8')    
  )
  
subject: adjust list of libsass_sources (libsass/*.cpp)