bug#19346: 25.0.50; url-http-parse-headers: Symbol's function definition is void: gnutls-available-p

[Lars Magne Ingebrigtsen]

Ted Zlatanov <tzz@lifelogs.com> writes:

> Your fix uses `fboundp'. Should we make `gnutls-available-p' always
> defined to return nil, to simplify this in the future?

Yes, that's how I thought it worked.

I dimly recall this being discussed before, but I don't remember the
outcome.

I think we discussed making a lot of these `*-available-p' functions so
that we would have a standard way to check whether the capability can be
used, and `featurep' can't be used since (under Windows) Emacs may be
compiled with support for it, but the libraries may not be available
run-time.

Perhaps Eli remembers what the conclusion was?

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