import os
import sysconfig
from Cython.Distutils import build_ext

def get_ext_filename_without_platform_suffix(filename):
  name, ext = os.path.splitext(filename)
  ext_suffix = sysconfig.get_config_var('EXT_SUFFIX')

  if ext_suffix == ext:
    return filename

  ext_suffix = ext_suffix.replace(ext, '')
  idx = name.find(ext_suffix)

  if idx == -1:
    return filename
  else:
    return name[:idx] + ext

class BuildExtWithoutPlatformSuffix(build_ext):
  def get_ext_filename(self, ext_name):
    filename = super().get_ext_filename(ext_name)
    return get_ext_filename_without_platform_suffix(filename)