Re: Objects that can't be purified during dumping

[Eli Zaretskii]

> From: Lynn Winebarger <owinebar@gmail.com>
> Date: Sat, 23 Jul 2022 08:19:35 -0400
> 
> In my quest to have a "fully loaded" emacs, I'm attempting to dump a version 
> that loads about 2400 features
> in site-load.el.

Dump how? with the portable dumping?  If so, we don't yet fully
support re-dumping, although it's a goal we'd like to reach.

> Attempting to load email/rfc2047 produces an error to the effect that 
> purecopy does not know how to purify a
> char table (specifically a syntax table).  
> Is there a reason objects that aren't specifically recognized as being 
> "purifiable" can't just be marked as
> pinned like hash table without the purecopy attribute?  I mean, if I put that 
> in the code, are there foreseeable
> bugs that would result?

Pure space will go away at some point, so we are unlikely to invest
any effort into fixing this.