Bug#650601: transition: libpng 1.5

["Adam D. Barratt" <adam@adam-barratt.org.uk>]

On Thu, 1 Dec 2011 09:16:41 +0900, Nobuhiro Iwamatsu wrote:
> Libpng maintainers want to update libpng from 1.2 to 1.5.
> libpng of ABI and API has been changed by change of 1.2 to 1.5, so it
> needs a transition from libopng12 to libpng15.
> We tested building of the package depending on libpng12.
> FTBFS by this change is reported and is summarized below.
>
>
> http://bugs.debian.org/cgi-bin/pkgreport.cgi?tag=libpng15-transition;users=libpng@packages.debian.org
> Almost all packages have not been corrected yet.
>
> And it is necessary to change Build-depends of almost all packages
> into libpng-dev from libpng12-dev.

Is there a good reason why the new libpng-dev couldn't at least Provide 
libpng12-dev in the short term?  Would this allow some (most?) packages 
to be binNMUed?

Regards,

Adam