[tlbuild] dvisvgm-2.1 trial build

[Mojca Miklavec]

On 1 February 2017 at 01:08, Karl Berry wrote:
> Hello TL builders - I've imported a major new version of dvisvgm (2.1)
> into TeX Live. If you're up for it, feel free to try a build and see how
> it fails :).
>
> I believe that C++ as of 2011 is now required.

That basically makes it nearly mission impossible to support Mac OS X < 10.7.

(Theoretically it's possible to ship TeX Live with a private libstdc++
build, but that will be a huge headache.)

Mojca