package/mesa3d: add explicit option for Gallium VDPAU state tracker

Dependencies are too complex to have them handled automatically:

- needs mesa3d platform x11:
  https://cgit.freedesktop.org/mesa/mesa/tree/meson.build?h=19.2#n452
- needs specific gallium drivers:
  https://cgit.freedesktop.org/mesa/mesa/tree/meson.build?h=19.2#n459

Fixes:
http://autobuild.buildroot.net/results/a2c/a2c120193f5bace3a8bbcfa728dae7e290e15d6c/

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Reviewed-by: Romain Naour <romain.naour@gmail.com>
[Arnout: fix check-package issue]
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

package/mesa3d/Config.in

@@ -222,6 +222,23 @@ config BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_VIRGL
 	  virgl is the 3D acceleration backend for the virtio-gpu
 	  shipping with qemu.
 
+config BR2_PACKAGE_MESA3D_VDPAU
+	bool "Gallium VDPAU state tracker"
+	depends on BR2_PACKAGE_XORG7
+	depends on BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_NOUVEAU \
+		|| BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_R600 \
+		|| BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_RADEONSI
+	select BR2_PACKAGE_LIBVDPAU
+	help
+	  VDPAU state tracker (needs r600, radeonsi or nouveau gallium
+	  drivers).
+
+comment "Gallium VDPAU state tracker needs X.org and gallium drivers r600, radeonsi or nouveau"
+	depends on !BR2_PACKAGE_XORG7 || \
+		!(BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_NOUVEAU \
+		|| BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_R600 \
+		|| BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_RADEONSI)
+
 config BR2_PACKAGE_MESA3D_XVMC
 	bool "Gallium XvMC state tracker"
 	depends on BR2_i386 || BR2_x86_64

package/mesa3d/mesa3d.mk

@@ -230,7 +230,7 @@ else
 MESA3D_CONF_OPTS += -Dlibunwind=false
 endif
 
-ifeq ($(BR2_PACKAGE_LIBVDPAU),y)
+ifeq ($(BR2_PACKAGE_MESA3D_VDPAU),y)
 MESA3D_DEPENDENCIES += libvdpau
 MESA3D_CONF_OPTS += -Dgallium-vdpau=true
 else