[tex-eplain] Warnings about redefinition of xref labels

[Dorai Sitaram]

Oleg wrote:
> Really weird -- this does not work for me (on Linux).  This
> could be either a newer pdfetex or a "smarter" Acrobat
> Reader.  My pdfetex is an old one:
> 
>   $ pdfetex --version
>   pdfeTeX (Web2C 7.4.5) 3.14159-1.10b-2.1
>   kpathsea version 3.4.5
>   Copyright (C) 1997-2003 The NTS Team (eTeX)/Han The Thanh (pdfTeX).
>   [...]

My pdfetex is a bit older:

  pdfeTeX (Web2C 7.4.5) 3.14159-1.10a-2.1
  kpathsea version 3.4.5
  Copyright (C) 1997-2003 The NTS Team (eTeX)/Han The Thanh (pdfTeX).
  [...]

> I use Acrobat Reader 7.0.1 for Linux.  And this also does
> not work on my xpdf version 3.01.

My acroread is older too: version 5.  By the way, my experiment on Mac OS X
didn't produce a hyperlink, but that's because Preview (the PDF viewer on
the Mac) seems incapable of showing any links, even the ones that are
noncontroversial.

> Could you maybe mail me the resulting PDF?  

I'm enclosing the f.pdf file with this email.

> My PDF has the
> following object in it:
> 
>   15 0 obj <<
>   /Type /Annot
>   /BS<</Type/Border/S/S/W 1>>
>   /Rect [224.982 757.99 294.167 766.846]
>   /Subtype/Link/A<</Type/Action /S/URI/URI(#apagetag)>>
>   >> endobj
> 
> so my pdfetex obviously creates a URI link.  Maybe yours
> does something different.

Here's the corresponding excerpt from mine:

  15 0 obj <<
  /Type /Annot
  /BS<</Type/Border/S/S/W 1>>
  /Rect [137.38 746.035 192.728 754.891]
  /Subtype/Link/A<</Type/Action /S/URI/URI(#apagetag)>>
  >> endobj

> > Whatever the reason, it works as expected (by me at least)!  Please don't
> > disable it now! :-)
> 
> ...So you would get the same functionality, plus the ability to
> customize the type and options for the internal link.  In
> any case, I would not touch \hlstart, so it will continue to
> work as now.  Is this fair enough :) ?

More than!

Dorai
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