Hi, That append just does: PACKAGECONFIG_append_vexpressa9 = " gles egl" But 8.0.5 (and actually some of the 8.0.4 releases) have: PACKAGECONFIG ??= "${@base_contains('DISTRO_FEATURES', 'x11', 'x11', '', d)} egl gles" So you can drop the bbappend entirely on your master branch. Ross