# For prompting ...
CFLAGS32+=     -DMOTD -DIMAGE_MENU
# [...]
# Change download protocol to NFS, default is TFTP
CFLAGS32+=      -DDOWNLOAD_PROTO_NFS
# For prompting and default on timeout
CFLAGS32+=     -DASK_BOOT=3 -DANS_DEFAULT=ANS_NETWORK
# [...]
# Enabling this makes the boot ROM require a Vendor Class Identifier
# of "Etherboot" in the Vendor Encapsulated Options
CFLAGS32+=      -DREQUIRE_VCI_ETHERBOOT