stdenv bootstrap: hack around glibc version mismatch

        # Rewrap the binutils with the new glibc, so both the next

        # stage's wrappers use it.

        libc = getLibc self;

        # Unfortunately, when building gcc in the next stage, its LTO plugin

        # would use the final libc but `ld` would use the bootstrap one,

        # and that can fail to load.  Therefore we upgrade `ld` to use newer libc;

        # apparently the interpreter needs to match libc, too.

        bintools = self.stdenvNoCC.mkDerivation {

          inherit (prevStage.bintools.bintools) name;

          dontUnpack = true;

          dontBuild = true;

          # We wouldn't need to *copy* all, but it's easier and the result is temporary anyway.

          installPhase = ''

            mkdir -p "$out"/bin

            cp -a '${prevStage.bintools.bintools}'/bin/* "$out"/bin/

            chmod +w "$out"/bin/ld.bfd

            patchelf --set-interpreter '${getLibc self}'/lib/ld*.so.? \

              --set-rpath "${getLibc self}/lib:$(patchelf --print-rpath "$out"/bin/ld.bfd)" \

              "$out"/bin/ld.bfd

          '';

        };

      };

    };

  })