Assume INET, INET6, and TCP_OFFLOAD when the driver is built out of tree and

KERNBUILDDIR is not set.

MFC after:	2 weeks

sys/modules/cxgbe/if_cxgbe/Makefile

@@ -2,6 +2,8 @@
 # $FreeBSD$
 #
 
+.include <bsd.own.mk>
+
 CXGBE = ${.CURDIR}/../../../dev/cxgbe
 .PATH: ${CXGBE} ${CXGBE}/common
 
@@ -17,4 +19,17 @@ CFLAGS+= -I${CXGBE}
 # Provide the timestamp of a packet in its header mbuf.
 #CFLAGS+= -DT4_PKT_TIMESTAMP
 
+.if !defined(KERNBUILDDIR)
+.if ${MK_INET_SUPPORT} != "no"
+opt_inet.h:
+	@echo "#define INET 1" > ${.TARGET}
+	@echo "#define TCP_OFFLOAD 1" >> ${.TARGET}
+.endif
+
+.if ${MK_INET6_SUPPORT} != "no"
+opt_inet6.h:
+	@echo "#define INET6 1" > ${.TARGET}
+.endif
+.endif
+
 .include <bsd.kmod.mk>

sys/modules/cxgbe/tom/Makefile

@@ -2,6 +2,8 @@
 # $FreeBSD$
 #
 
+.include <bsd.own.mk>
+
 CXGBE = ${.CURDIR}/../../../dev/cxgbe
 .PATH: ${CXGBE}/tom
 
@@ -12,4 +14,12 @@ SRCS+= opt_inet.h
 
 CFLAGS+= -I${CXGBE}
 
+.if !defined(KERNBUILDDIR)
+.if ${MK_INET_SUPPORT} != "no"
+opt_inet.h:
+	echo "#define INET 1" > ${.TARGET}
+	echo "#define TCP_OFFLOAD 1" >> ${.TARGET}
+.endif
+.endif
+
 .include <bsd.kmod.mk>