[tlbuild] Bug in libpng affecting Solaris 10

[Mojca Miklavec]

On 15 March 2016 at 22:08, Karl Berry <karl at freefriends.org> wrote:
>     Would it be possible to include it into TL sources to avoid having to
>     set additional flags when building on Solaris?
>
> This is software, anything's possible.  Before I merge it, though, do
> you know if another libpng release is planned for the near-ish future?
> Thanks, K.

In case this patch happens to break another exotic platform, it would
in fact be good to know that before the release.

Mojca