bug#8013: 23.2.93; png not available

[Eli Zaretskii]

> Date: Fri, 11 Feb 2011 11:20:03 +0000
> From: Uday S Reddy <u.s.reddy@cs.bham.ac.uk>
> Cc: Uday S Reddy <u.s.reddy@cs.bham.ac.uk>,
>     8013@debbugs.gnu.org
> 
> The libpng package I have installed is 1.2.37, which is the latest
> version available on GnuWin32.
> 
>   http://gnuwin32.sourceforge.net/packages.html

You can find a newer one here:

   http://www.gtk.org/download-windows.html

The reason we switched to newer versions is that the old ones had
security problems.  Unfortunately, the new ones and the old ones are
incompatible in their interfaces, so we cannot use both.

> Sean Sieger's pre-compiled Emacs distribution that I downloaded
> doesn't seem to have the README.W32 file.  So, it has gone missing
> somewhere.

Sean, could you please fix this for the next pretest and the upcoming
release?

> I also wonder if it would be useful to provide diagnostic information
> about package support somehow, e.g., with an optional argument to
> image-type-available-p which prints diagnostic information.

Patches are welcome.

I'm closing the bug report.