bug#62645: Failing `guix install gnash`.

[Vinicius Monego]

Hi,

Gnash is incompatible with Boost 1.80.0. The latest commit in Gnash, from 2019, says:

-This is the README file for the Gnash-0.8.8 release (or snapshot).

+Gnash is currently not being actively maintained, as most of the internet

+has moved to using HTML5. There are literally millions of flash files

+that Gnash can play, as well as YouTube videos. As Adobe is letting their

+flash player die on most platforms, Gnash will be critical in the future

+for anyone wanting to play flash files for historical reasons. Gnash's code

+is very portable, and should be compilable for many years, long after

+Adobe flash is dead.

It may not be feasible to support Gnash long-term. You could use Lightspark instead, which is still actively maintained and up to date in Guix, or use time-machine to move to a commit where Gnash was building, prior to the core-updates merge that introduced Boost 1.80.0.

IMO we should remove Gnash from the repository, unless someone wants to patch it for the latest Boost.

Vinicius