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

[Stefan Monnier]

> How harder would it be if 'foo-available-p', or 'require', or 'load',
> or whatever we call it, would return a list of the features supported
> by the module?

It'll be `require' because that's what it already is.
We can't really change what `require' returns.
And even if we could, it would suffer from the usual problem that we
don't know which subfeatures will be important to know.
Hence fboundp,


        Stefan