-SUBDIRS= base adns hbytes cdb crypto dgram tuntap
+SUBDIRS= base adns hbytes cdb crypto dgram
+
+ifneq ($(wildcard /usr/include/linux/if_tun.h),)
+SUBDIRS+= tuntap
+endif
ifneq ($(wildcard /usr/include/wiringPi.h /usr/include/arm-*/wiringPi.h),)
SUBDIRS+= wiringpi