On Wed, 28 Jan 2015 17:32:43 +0200, in message 83pp9yor8k.fsf@gnu.org,
Eli Zaretskii wrote:

> > From: Lars Ingebrigtsen <larsi@gnus.org>
> > Date: Wed, 28 Jan 2015 17:12:03 +1100
> > Cc: help-gnu-emacs@gnu.org, ding@gnus.org
> > 
> > I'm on a Fedora laptop, and installing libidn doesn't seem to
> > install idna.el
> 
> That's a packaging problem: if you build libidn yourself, "make
> install" does install the Lisp interface.
> 

The Emacs package is available for Fedora, as
"emacs-libidn.noarch".  Doing a "yum list \*idn\*" will find it.
"yum install emacs-libidn" will pull in the emacs package.  I
haven't used it, but it looks to me like you'll need a
(require 'idna) in your ~/.emacs.d/init.el.

Hope this helps.

--Dale

-- 
Mickey Mouse wears a Spiro Agnew watch.