cc  -O -pipe  -I/usr/src/usr.sbin/802_11/wpa_supplicant -I/usr/src/usr.sbin/802_11/wpa_supplicant/../../../contrib/wpa_supplicant/src -I/usr/src/usr.sbin/802_11/wpa_supplicant/../../../contrib/wpa_supplicant/src/common -I/usr/src/usr.sbin/802_11/wpa_supplicant/../../../contrib/wpa_supplicant/src/crypto -I/usr/src/usr.sbin/802_11/wpa_supplicant/../../../contrib/wpa_supplicant/src/l2_packet -I/usr/src/usr.sbin/802_11/wpa_supplicant/../../../contrib/wpa_supplicant/src/utils -DCONFIG_CTRL_IFACE -DCONFIG_CTRL_IFACE_UNIX -DCONFIG_BACKEND_FILE  -DCONFIG_DEBUG_SYSLOG  -DCONFIG_DRIVER_BSD  -DCONFIG_DRIVER_NDIS  -DCONFIG_DRIVER_WIRED  -DCONFIG_PEERKEY  -DCONFIG_SMARTCARD  -DCONFIG_TERMINATE_ONLASTIF  -DCONFIG_WPS  -DCONFIG_WPS2  -DCONFIG_WPS_UPNP  -DCONFIG_TLS=openssl  -DCONFIG_IEEE80211R  -DCONFIG_INTERWORKING  -DCONFIG_PRIVSEP  -DCONFIG_HS20  -DCONFIG_GAS  -DPKCS12_FUNCS  -DEAP_GTC  -DEAP_LEAP  -DEAP_MD5  -DEAP_MSCHAPv2  -DEAP_OTP  -DEAP_PEAP  -DEAP_PSK  -DEAP_TLS  -DEAP_TTLS  -DEAP_GTC  -DEAP_OTP  -DEAP_LEAP  -DIEEE8021X_EAPOL -DCONFIG_SHA256 -DEAP_TLS_OPENSSL -I/usr/src/usr.sbin/802_11/wpa_supplicant -I/usr/src/usr.sbin/802_11/wpa_supplicant/../../../contrib/wpa_supplicant/src -I/usr/src/usr.sbin/802_11/wpa_supplicant/../../../contrib/wpa_supplicant/src/common -I/usr/src/usr.sbin/802_11/wpa_supplicant/../../../contrib/wpa_supplicant/src/crypto -I/usr/src/usr.sbin/802_11/wpa_supplicant/../../../contrib/wpa_supplicant/src/l2_packet -I/usr/src/usr.sbin/802_11/wpa_supplicant/../../../contrib/wpa_supplicant/src/utils -DCONFIG_CTRL_IFACE -DCONFIG_CTRL_IFACE_UNIX   -std=gnu99 -Wmissing-include-dirs -Wsystem-headers -Werror -c /usr/src/usr.sbin/802_11/wpa_supplicant/../../../contrib/wpa_supplicant/src/drivers/driver_bsd.c
In file included from /usr/include/netproto/802_11/ieee80211_ioctl.h:35:0,
                 from /usr/src/usr.sbin/802_11/wpa_supplicant/../../../contrib/wpa_supplicant/src/drivers/driver_bsd.c:31:
/usr/include/netproto/802_11/ieee80211.h:801:0: error: "WPA_OUI_TYPE" redefined [-Werror]
In file included from /usr/src/usr.sbin/802_11/wpa_supplicant/../../../contrib/wpa_supplicant/src/drivers/driver_bsd.c:18:0:
/usr/src/usr.sbin/802_11/wpa_supplicant/../../../contrib/wpa_supplicant/src/common/wpa_common.h:115:0: note: this is the location of the previous definition
cc1: all warnings being treated as errors
*** Error code 1

Stop.
make: stopped in /usr/src/usr.sbin/802_11/wpa_supplicant