Fixes: http://autobuild.buildroot.net/results/476/47665d417dbae76bf27e805a5bcb1d8d6ab1f445/ xwayland unconditionally includes xf86drm.h, so libdrm is required and not optional: grep -rs xf86drm.h glamor/glamor_egl.c:#include <xf86drm.h> hw/xwayland/xwayland-glamor.h:#include <xf86drm.h> hw/xwayland/xwayland-glamor-eglstream.c:#include <xf86drm.h> hw/xwayland/xwayland-window.h:#include <xf86drm.h> hw/xwayland/xwayland-drm-lease.c:#include <xf86drm.h> hw/xwayland/xwayland-glamor-gbm.c:#include <xf86drm.h> Signed-off-by: Peter Korsgaard <peter@korsgaard.com>