[Bug: 21.5-b29] gnus can't send in 21.5.29 but in 21.4.22

[Stephen J. Turnbull]

Uwe Brauer writes:

 > This is bizzare: I have install a no-gnus version which I
 > use either with 21.4.22 Or 21.5.29.
 > 
 > I wanted to send a message with 2 PDF attachments. It worked
 > fine in 21.4.22 but in 21.5.29 I obtained an error which I
 > attach. Since it works in 21.4.22 I hesitate to send a bug
 > report to the gnus list.

Unfortunately, this isn't bizarre at all.  Both XEmacs 21.5 and Gnus
use private space character sets internally for various purposes, and
you contribute to that by using X-symbol, most likely.  There are only
about 10 of them so it's a scarce resource.

Please show us the output of M-x list-character-sets so we can see
where the resource drain is coming from.

Aidan may be able to help you with XEmacs's use since he implemented
the JIT Unicode charset stuff, but IIRC he hard-coded it so there's
probably nothing you can do by customizing a variable---it will need
code changes.  It's more likely that a workaround can be found in Gnus
IMO, but since XEmacs is more a platform than an application, IMHO it
should be reserving private charsets for applications written in Emacs
Lisp.  So I wouldn't be surprised if the Gnus folks take the position
that this is an XEmacs 21.5 limitation, and put low priority on
addressing it.