Bug#969284: xorg-server: FTBFS: configure: error: Xwayland build explicitly requested, but required modules not found

[Julien Cristau <jcristau@debian.org>]

Control: reassign -1 libwayland-dev 1.18.0-2~exp1
Control: affects -1 + src:xorg-server

On Sun, Aug 30, 2020 at 09:21:55PM +0200, Salvatore Bonaccorso wrote:
> Source: xorg-server
> Version: 2:1.20.8-2
> Severity: serious
> Justification: FTBFS
> X-Debbugs-Cc: carnil@debian.org
> 
> Hi
> 
> When trying to build xorg-server 2:1.20.8-2 in unstable, the build
> fails (on configure already) with:
> 
> configure: error: Xwayland build explicitly requested, but required modules not found
> 
> full build log though attached (and I have not further checked if
> another dependency is actually at fault).
> 
Log says:

Package 'libffi', required by 'wayland-client', not found

Cheers,
Julien