old_contents: # Copyright 2016 The Meson development team
  
  # 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.
  
  def destdir_join(d1: str, d2: str) -> str:
      if not d1:
          return d2
      # c:\destdir + c:\prefix must produce c:\destdir\prefix
      if len(d2) > 1 and d2[1] == ':':
          return d1 + d2[2:]
      return d1 + d2
  
new_contents: # Copyright 2016 The Meson development team
  
  # 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 pathlib import PurePath
  
  def destdir_join(d1: str, d2: str) -> str:
      if not d1:
          return d2
      # c:\destdir + c:\prefix must produce c:\destdir\prefix
      return str(PurePath(d1, *PurePath(d2).parts[1:]))
  
subject: Fix destdir_join