bug#25474: 26.0.50; Buffer content invisible

[Ivor Durham]

"#define HAVE_XDBE 1" is in src/config.h

-----Original Message-----
From: Eli Zaretskii [mailto:eliz@gnu.org] 
Sent: Thursday, January 19, 2017 7:51 AM
To: Ivor Durham
Cc: 25474@debbugs.gnu.org
Subject: Re: bug#25474: 26.0.50; Buffer content invisible

> From: "Ivor Durham" <ivor.durham@ivor.cc>
> Cc: <25474@debbugs.gnu.org>
> Date: Wed, 18 Jan 2017 21:03:02 -0800
> 
> emacs -Q -xrm "emacs.synchronous: true" -- still produces a blank 
> buffer area.

Thanks.  One possible suspect could be the double-buffering feature we have
on master.  Do you have HAVE_XDBE defined in src/config.h?