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List:       suse-linux-e
Subject:    [opensuse]  Re: Xemacs x-symbol error (Invalid tag set, (mule-fonts))
From:       Sitsofe Wheeler <sitsofe () yahoo ! com>
Date:       2006-11-29 23:23:06
Message-ID: 1164842585.4335.9.camel () galvatron ! localdomain
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On Tue, 2006-11-28 at 23:40 +0000, Sitsofe Wheeler wrote:
> Trying to test x-symbol as per the instructions
> ( http://x-symbol.sourceforge.net/man/x-symbol_2.html#SEC20 ) within
> SUSE 10.1's xemacs ( 21.5.25.20060327 ) always results in an error. This
> happens of both the 32bit and 64bit versions of xemacs. Typing M-x
> x-symbol-grid in buffer `*scratch*' always produces the following error
> at the bottom of xemacs:
> 
> "Invalid argument: Invalid tag set, (mule-fonts)"

The answer turned out to be to add:
(define-specifier-tag 'mule-fonts)
to the user's ~/.xemacs/init.el . Attempting to to do M-x x-symbol-grid
now results in a segfault but xsymbol seems to kind of work in day to
day use.

The problem is apparently due to a break in the backwards compatibility
of xemacs. As of 21.x the mule-fonts tag is no longer used internally
( http://thread.gmane.org/gmane.emacs.xemacs.beta/20171/focus=20172 ) .
Further, the x-symbol package is unmaintained thus this problem may
become worse in the future (
http://thread.gmane.org/gmane.emacs.xemacs.beta/22891/focus=22900 ).
This issue also tends to surface in relation to proofgeneral/isabelle
when used with xemacs.


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