offline-component-load-probes.patch called native_legacy_display_probe() from the IOMobileGraphicsFamily load probe in bsd_init.c behind a boot argument only. A configuration without the legacy display driver then fails the kernel link with an undefined native_legacy_display_probe, as examples/device/configs/example_defconfig does. Guard the block with XNU_NATIVE_LEGACY_DISPLAY, which bsd_init.o already receives, as the second call site in the same patch does. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>