bug#49660: 28.0.50; json-available-p should exist

[Lars Ingebrigtsen]

Eli Zaretskii <eliz@gnu.org> writes:

> Compile json.c always, but have a HAVE_LIBJANSSON preprocessor symbol
> that would effectively ifdef away all of json.c except that single
> function (and syms_of_json).

Yeah, I guess there's really no other cleanish way to do this?  And it's
the pattern we follow in all the other library-specific src/*.c files, I
think...

So unless somebody protests (or beats me to it), I'll do this in a few
days.

-- 
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   bloggy blog: http://lars.ingebrigtsen.no