Hi Maxim, Maxim Cournoyer 写道: > I'd suggest we revisit 8cb1a49a3998c39f315a4199b7d4a121a6d66449 > to use > 'unspecified (the symbol) instead of *unspecified*, which *can* > be > serialized without any fuss in gexps. Bah. Could we provide our own reader? I'd much rather this be addressed in Guile (or failing that, transparently by Guix) than have to deal with some magical symbol. IIRC that was the argument for using *unspecified* in the first place, and I think it makes sense. This looks more like an unexplored oversight than a well-reasoned restriction to me. Kind regards, T G-R