< two different macros in order not to cause issues with a special variable when working with Parenscript from different sources >

It sounds like you're talking about something important, but I'd need to see an example in order to get it. However, I'd like an answer to the first question first - does anybody actually need this? - because if not, then maybe the original let can be restored (either by removing or renaming the new one).

Another point: the new let generates different code for variables defined with "defvar" than "var". If the intention is to create Lispy bindings for special variables (indicated by "defvar") then an alternative solution would be to generate fancy code only for variables declared this way, and return to generating plain-old-JS for variables not declared this way. That might be a simple way to get the best of both worlds.

Daniel