Subject: Re: bug#20677: tooltips generate garbage

From: Wolfgang Jenkner <[email-masked]>
Date: Tue, 02 Jun 2015 02:31:56 +0200

On Mon, Jun 01 2015, Angelo Graziosi wrote:

> maybe, on linux+X Emacs needs something like this
>
> # if def(...X11..)
>   [...]
>   x_clear_area (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f)...

The commit log says

    (USE_CAIRO): Default to yes for Gtk+ 3.  Add code to test for cairo,

So I guess x_clear_area uses the new cairo specific code in your case.

You could try to configure --without-cairo.