[Bug: 21.5-b28] Crash while searching

[Stephen J. Turnbull]

Pete Forman writes:

> Fatal error: assertion failed, file 
 > c:\XEmacsBuild\xemacs-21.5-2007-09-26\src\search.c, line 1487, 
 > (this_pos) > ((Bytebpos) 1) && this_pos <= ((buf)->text->z + 0)

This crash was fixed fairly recently, I think:

2007-12-05  Stephen J. Turnbull  <stephen at xemacs.org>

	* search.c (simple_search): Fix underrun in reverse search.
	(search_buffer): Clarify decision to use boyer_moore or not.

To avoid it you'll need to update to the tip of the trunk.  We've
moved to Mercurial (see http://www.xemacs.org/Develop/hgaccess.html
for a brief introduction to usage) for mainline development.  But for
a little longer this will be mirrored to the old CVS repository (this
patch should be in in there).