Hi Changqing,

On 5/8/26 4:23 AM, Changqing Li via lists.openembedded.org wrote:
When vulkan is enabled in DISTRO_FEATURES without x11 or wayland,
do_configure will failed with error:
gst-libs/gst/vulkan/meson.build:311:4: ERROR: Problem encountered: No Windowing 
system found. vulkansink will not work

disable vulkan from PACKAGECONFIG when x11 and wayland is not enabled

Signed-off-by: Changqing Li <[email protected]>
---
  .../gstreamer/gstreamer1.0-plugins-bad_1.28.2.bb             | 5 ++++-
  1 file changed, 4 insertions(+), 1 deletion(-)

diff --git 
a/meta/recipes-multimedia/gstreamer/gstreamer1.0-plugins-bad_1.28.2.bb 
b/meta/recipes-multimedia/gstreamer/gstreamer1.0-plugins-bad_1.28.2.bb
index cdf3a20dff..c7f081e25b 100644
--- a/meta/recipes-multimedia/gstreamer/gstreamer1.0-plugins-bad_1.28.2.bb
+++ b/meta/recipes-multimedia/gstreamer/gstreamer1.0-plugins-bad_1.28.2.bb
@@ -21,10 +21,13 @@ DEPENDS += "gstreamer1.0-plugins-base"
inherit gobject-introspection +PACKAGECONFIG_VULKAN ?= "${@bb.utils.filter('DISTRO_FEATURES', 'vulkan', d)}"
+
  PACKAGECONFIG ??= " \
      ${GSTREAMER_ORC} \
+    ${@'${PACKAGECONFIG_VULKAN}' if (bb.utils.filter('DISTRO_FEATURES', 'x11 
wayland', d) != '') else ''} \
      ${@bb.utils.contains('DISTRO_FEATURES', 'bluetooth', 'bluez', '', d)} \
-    ${@bb.utils.filter('DISTRO_FEATURES', 'directfb vulkan x11', d)} \
+    ${@bb.utils.filter('DISTRO_FEATURES', 'directfb x11', d)} \
      ${@bb.utils.contains('DISTRO_FEATURES', 'wayland', 'wayland', '', d)} \
      ${@bb.utils.contains('DISTRO_FEATURES', 'opengl', 'gl', '', d)} \
      bz2 closedcaption curl dash dtls hls openssl sbc smoothstreaming \


Should we really build gstreamer-1.0-plugins-bad without vulkan support even if DISTRO_FEATURES contains it? Seems odd to me.

If we can fail the build, then we could probably do:

ANY_OF_DISTRO_FEATURES = "${@bb.utils.contains('DISTRO_FEATURES', 'vulkan', 'x11 wayland', '', d)}"

Otherwise if this isn't desired, we could go for:

 # Vulkan requires a windowing system
PACKAGECONFIG_VULKAN = "${@bb.utils.contains_any('DISTRO_FEATURES', 'x11 wayland', 'vulkan', '', d)}"

PACKAGECONFIG ??= "\
${@bb.utils.contains('DISTRO_FEATURES', 'vulkan', '${PACKAGECONFIG_VULKAN}', '', d)}"

Cheers,
Quentin
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