bug#26646: 26.0.50; Segfault from find-font in "emacs -nw"

[Eli Zaretskii]

> From: John Mastro <john.b.mastro@gmail.com>
> Date: Mon, 24 Apr 2017 14:04:41 -0700
> 
> In both Emacs 25.1 and master (at 53f8f4b), calling find-font from an
> Emacs built with X support and started with `emacs -nw' results in a
> segfault.
> 
> In both cases I am testing on Fedora 25. The version of 25.1 I tested on
> was Fedora's default version built with GTK, and master was built myself
> with Lucid.
> 
> To reproduce:
>   - Run `emacs -Q -nw'
>   - Evaluate (find-font (font-spec :name "Anything-10"))
> 
> (It doesn't matter whether "Anything-10" is something made up or an
> actual font on the system.)

Thanks, fixed on the master branch.