bug#73605: [PATCH] Replace SRFI-64 with a new implementation.

Hi,

lloda <[email protected]> skribis:

> I'm pleased to see all these fixes. However, I noticed a few breakages. They come from relying on undocumented behavior, but only using the public interface, so others might be affected. I don't propose to patch them, but perhaps to make a note in NEWS or (for the last two) to add a paragraph in the manual explaining how to achieve the same goal – the reference documentation doesn't have enough examples.
>
> * test-begin and test-end now require strings. The old version accepted symbols.
> * test-approximate requires real arguments. The old version accepted complex arguments.
> * The exported variable test-log-to-file is gone.

As discussed on IRC, I think we should consider restoring support for
these idioms, whether or not they conform to the reference, in an effort
to minimize breakage (especially since this is slated for a point
release).

WDYT, Tomas?

Ludo’.