[Libva] Robust configure without Wayland (see bug 79478)

[Gilles Chanteperdrix]

On Fri, Nov 27, 2015 at 06:51:53PM +0100, Thomas Orgis wrote:
> Hi,
> 
> I was told to send the attached patch to this list for discussion. It
> is about troubles trying to build libva without wayland stuff
> installed. The configure of libva-1.6.0 fails:
> 
> checking for WAYLAND... no
> checking for pkg-config... (cached) /usr/bin/pkg-config
> checking pkg-config is at least version 0.9.0... yes
> checking for WAYLAND_SCANNER... no
> configure: error: Package requirements (wayland-scanner) were not met:
> 
> No package 'wayland-scanner' found
> 
> Consider adjusting the PKG_CONFIG_PATH environment variable if you
> installed software in a non-standard prefix.
> 
> Alternatively, you may set the environment variables WAYLAND_SCANNER_CFLAGS
> and WAYLAND_SCANNER_LIBS to avoid the need to call pkg-config.
> See the pkg-config man page for more details.
> 
> 
> The same  for libva-1.6.1 works. It also works for 1.6.0 when
> regenerating the configure script using `autoreconf -iv`. The whole
> thing is discussed in
> 
> 	https://bugs.freedesktop.org/show_bug.cgi?id=79478
> 
> and I made a patch that moves the wayland scanner code into the main
> conditional and assume that this should fix things. But: I now realized
> that the simple regeneration of the configure script without any patch
> also works. I guess that a system with wayland installed creates
> configure scripts that fail without wayland and systems without wayland
> create configure scripts that are missing pieces to enable wayland …
> 
> I hope future releases of libva can me made to include a configure
> script that works for both cases.

I think I posted a mail about the same bug for libva-intel-driver
1.6.0 in July:
http://lists.freedesktop.org/archives/libva/2015-July/003413.html

-- 
					    Gilles.
https://click-hack.org