[tex-live] xdvi and X11R7.4 (cygwin)

[George N. White III]

On Sat, Nov 22, 2008 at 8:53 AM, Ken Brown <kbrown at cornell.edu> wrote:

> On 11/21/2008 4:54 PM, Stefan Ulrich wrote:
>>
>> Ken Brown <kbrown at cornell.edu> writes:
>>
>> This doesn't look good - a stack corruption somewhere in the X
>> library.  The stack is probably already corrupted in those weird
>> looking type converter warnings. Since it used to work with X11R6.99,
>> I'd say it's a problem with that X version and/or cygwin ... I must
>> admit that I'm still running an ancient version of X.org (on ancient
>> hardware ;-) and I'm afraid of upgrading, so I haven't tested it
>> with X11R7.4 yet. Maybe you could forward this to the cygwin
>> developers, they might be in a better position to debug this.
>
> I've been asking for help on the cygwin-xfree list also, with no luck yet:
>
>        http://cygwin.com/ml/cygwin-xfree/2008-11/msg00116.html
>        http://cygwin.com/ml/cygwin-xfree/2008-11/msg00214.html
>
> I haven't yet sent them the gdb transcript.  I have a feeling that there's
> actually a very simple fix, but I don't know where to look.

I'd be looking closely at your X11R7.4.  Are other applications having
problems with Cygwin X11R7.4?

> Is it possible that this problem is related to the libXp library?  When
> texlive is built under X11R6.99, libXp gets pulled in.  Here's a line from
> build.log under X11R6.99:
>
>        checking for XpQueryVersion in -lXp... yes
>
> whereas the answer is "no" when I build texlive under X11R7.4.  (libXp
> provides the obsolete Xprint extension, which no longer exists in the newer
> X11.)  The effect of this is that the compilation of xdvi passes -lXp to gcc
> under the old X11 but not under the new one.  Does xdvi require libXp?  If
> so, I would have expected the configuration to quit with an error after not
> finding it.

Ubuntu 8.10 uses X11R7.4.  I just did a TL build from svn sources, firstly
to see if it would work, but also to look into the xdvi bug reported in
another thread (the "g" command doesn't accept '0' as a valid digit, so
"11 g" works, but "10 g" goes to page 1.).

Configure for xdvik gave:

checking for XpQueryVersion in -lXp... no

So far, my locally compiled Xdvi appears to be bug compatible with the
version in the TL2008 build.


-- 
George N. White III <aa056 at chebucto.ns.ca>
Head of St. Margarets Bay, Nova Scotia