def _make_relative(base):
        """
        In order to ensure that a filename always honors the
        indicated output_dir, make sure it's relative.
        Ref python/cpython#37775.
        """
        # Chop off the drive
        no_drive = os.path.splitdrive(base)[1]
        # If abs, chop off leading /
        return no_drive[os.path.isabs(no_drive) :]

        In order to ensure that a filename always honors the
        indicated output_dir, make sure it's relative.
        Ref python/cpython#37775.
        
product/gradle-plugin/src/main/python/setuptools/_distutils/ccompiler.py