text: #
  # Copyright 2019, Couchbase, Inc.
  # All Rights Reserved
  #
  # 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.
  #
  import sys
  
  from setuptools import Extension
  import platform
  import warnings
  
  from cbuild_config import couchbase_core, install_headers, CBuildCommon
  
  
  def gen_cmodule(extoptions):
      if platform.python_implementation() != 'PyPy':
          print("sources are {}".format(extoptions['sources']))
          module = Extension(
              str(couchbase_core + '._libcouchbase'), **extoptions)
      else:
          warnings.warn('The C extension libary does not work on PyPy. '
                        'You should install the couchbase_ffi module. Installation of this '
                        'module will continue but will be unusable without couchbase_ffi')
          module = None
      return module
  
  
  def gen_distutils_build(extoptions, pkgdata):
      e_mods = [gen_cmodule(extoptions)]
      CBuildCommon.setup_build_info(extoptions, pkgdata)
      cmdclass = {'install_headers': install_headers, 'build_ext': CBuildCommon}
      return e_mods, cmdclass
  