emacs/wrapper.nix: link included executables by their resolved paths (#395705)

            local origin_path=$2

            local dest_path=$3

            # Add the path to the search path list, but only if it exists

            # Add the path to the search path list, but only if it exists.

            # Executables in /bin are linked by their resolved paths in case they are

            # relative symlinks (which break when 'lndir'ed as is);

            # see https://github.com/NixOS/nixpkgs/issues/395442

            if [[ -d "$pkg/$origin_path" ]]; then

              $lndir/bin/lndir -silent "$pkg/$origin_path" "$out/$dest_path"

              case "$origin_path" in

                bin)

                  for exe in $pkg/$origin_path/*; do

                    ln -s "$(realpath "$exe")" "$out/$dest_path/$(basename "$exe")"

                  done

                  ;;

                *) $lndir/bin/lndir -silent "$pkg/$origin_path" "$out/$dest_path";;

              esac

            fi

          }