addhandler standalone_sdt_bbappend_distrocheck
standalone_sdt_bbappend_distrocheck[eventmask] = "bb.event.SanityCheck"
python standalone_sdt_bbappend_distrocheck() {
    skip_check = e.data.getVar('SKIP_META_XILINX_STANDALONE_SDT_SANITY_CHECK') == "1"
    if e.data.getVar('XILINX_WITH_ESW') != 'sdt' and not skip_check:
        bb.warn("You have included the meta-xilinx-standalone-sdt layer, but \
it has not been enabled using XILINX_WITH_ESW in your configuration. Some \
bbappend files and preferred version setting may not take effect. See the \
meta-xilinx-standalone-sdt README for details.")
}