{ stdenv }:

{
  # Note [Cross-compiler stripping]
  # gcc requires delicate stripping as it installs ELF files for both
  # HOST and TARGET platforms. It requires according strip tool otherwise
  # strip could remove sections it's not aware of.
  # Example ARM breakage by x86_64 strip: https://bugs.gentoo.org/697428
  #
  # Let's recap the file layout for directories with object files for a
  # cross-compiler (host != target):
  # `- bin: HOST
  #    lib/*.{a,o}: HOST
  #      `- gcc/<TARGET>/<VERSION>/*.{a,o}: TARGET
  #                               `- plugin/: HOST
  #  `- lib{,32,64,x32}: symlink to lib or identical layout
  #  `- libexec/: HOST
  #  `- <TARGET>/: TARGET
  #
  # (host == target) has identical directory layout.

  # The rest of stripDebugList{Host,Target} will be populated in
  # postInstall.
  stripDebugList = [ "bin" "libexec" ];
  stripDebugListTarget = [ stdenv.targetPlatform.config ];

  preFixup = ''
    # Populate most delicated lib/ part of stripDebugList{,Target}
    updateDebugListPaths() {
      local oldOpts
      oldOpts="$(shopt -p nullglob)" || true
      shopt -s nullglob

      pushd $out

      local -ar hostFiles=(
        lib{,32,64}/*.{a.o}
        lib{,32,64}/gcc/${stdenv.targetPlatform.config}/*/plugin
      )
      local -ar targetFiles=(
        lib{,32,64}/gcc/${stdenv.targetPlatform.config}/*/*.{a.o}
      )

      stripDebugList="$stripDebugList ''${hostFiles[*]}"
      stripDebugListTarget="$stripDebugListTarget ''${targetFiles[*]}"

      popd

      eval "$oldOpts"
    }
    updateDebugListPaths
  '';
}