On Feb 20, 2008 5:33 AM, Pete Forman <pete.forman(a)westerngeco.com&gt; wrote: > "Stephen J. Turnbull" <stephen(a)xemacs.org&gt; writes: > > > 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(a)xemacs.org&gt; > > > > * 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). > > I do not have the tools to build on XP myself. Is that fix > incorporated here? > > http://ftp.xemacs.org/windows/testing/XEmacs_Setup_21.5-2008-01-24.exe Yes, at least according to the ChangeLog. I have not yet verified your test case.