Index: head/cddl/lib/libavl/Makefile
===================================================================
--- head/cddl/lib/libavl/Makefile	(revision 302140)
+++ head/cddl/lib/libavl/Makefile	(revision 302141)
@@ -1,11 +1,11 @@
 # $FreeBSD$
 
 .PATH: ${.CURDIR}/../../../sys/cddl/contrib/opensolaris/common/avl
 
 LIB=	avl
 SRCS=	avl.c
-WARNS?=	0
+WARNS?=	3
 CFLAGS+= -I${.CURDIR}/../../../sys/cddl/compat/opensolaris
 CFLAGS+= -I${.CURDIR}/../../../sys/cddl/contrib/opensolaris/uts/common
 
 .include <bsd.lib.mk>
Index: head/cddl/lib/libctf/Makefile
===================================================================
--- head/cddl/lib/libctf/Makefile	(revision 302140)
+++ head/cddl/lib/libctf/Makefile	(revision 302141)
@@ -1,33 +1,33 @@
 # $FreeBSD$
 
 .PATH:		${.CURDIR}/../../../cddl/contrib/opensolaris/common/ctf
 .PATH:		${.CURDIR}/../../../cddl/contrib/opensolaris/lib/libctf/common
 .PATH:		${.CURDIR}/../../../sys/cddl/contrib/opensolaris/common/ctf
 
 LIB=		ctf
 SRCS=		ctf_create.c \
 		ctf_decl.c \
 		ctf_error.c \
 		ctf_hash.c \
 		ctf_labels.c \
 		ctf_lib.c \
 		ctf_lookup.c \
 		ctf_open.c \
 		ctf_subr.c \
 		ctf_types.c \
 		ctf_util.c
 MAN=		ctf.5
 
-WARNS?=		0
+WARNS?=		2
 CFLAGS+=	-DCTF_OLD_VERSIONS
 
 CFLAGS+=	-I${.CURDIR}/../../../sys/cddl/compat/opensolaris \
 		-I${.CURDIR}/../../../cddl/compat/opensolaris/include \
 		-I${OPENSOLARIS_USR_DISTDIR}/head \
 		-I${OPENSOLARIS_USR_DISTDIR}/common/ctf \
 		-I${OPENSOLARIS_USR_DISTDIR}/lib/libctf/common \
 		-I${OPENSOLARIS_SYS_DISTDIR}/uts/common
 
 LIBADD+=	z
 
 .include <bsd.lib.mk>
Index: head/cddl/lib/libnvpair/Makefile
===================================================================
--- head/cddl/lib/libnvpair/Makefile	(revision 302140)
+++ head/cddl/lib/libnvpair/Makefile	(revision 302141)
@@ -1,34 +1,34 @@
 # $FreeBSD$
 
 .PATH: ${.CURDIR}/../../../cddl/contrib/opensolaris/lib/libnvpair
 .PATH: ${.CURDIR}/../../../sys/cddl/contrib/opensolaris/common/nvpair
 
 LIB=	nvpair
 
 SRCS=	libnvpair.c \
 	nvpair_alloc_system.c \
 	nvpair_json.c \
 	opensolaris_fnvpair.c \
 	opensolaris_nvpair.c \
 	opensolaris_nvpair_alloc_fixed.c
 
-WARNS?=	0
+WARNS?=	1
 CFLAGS+= -I${.CURDIR}/../../../cddl/compat/opensolaris/include
 CFLAGS+= -I${.CURDIR}/../../../cddl/contrib/opensolaris/lib/libzpool/common
 CFLAGS+= -I${.CURDIR}/../../../sys/cddl/compat/opensolaris
 CFLAGS+= -I${.CURDIR}/../../../sys/cddl/contrib/opensolaris/uts/common
 CFLAGS+= -I${.CURDIR}/../../../sys/cddl/contrib/opensolaris/uts/common/fs/zfs
 CFLAGS+= -I${.CURDIR}/../../../sys
 CFLAGS+= -I${.CURDIR}/../../../cddl/contrib/opensolaris/head
 CFLAGS+= -I${.CURDIR}/../../../cddl/compat/opensolaris/lib/libumem
 
 # This library uses macros to define fprintf behavior for several object types
 # The compiler will see the non-string literal arguments to the fprintf calls and
 # omit warnings for them. Quiesce these warnings in contrib code: 
 #
 # cddl/contrib/opensolaris/lib/libnvpair/libnvpair.c:743:12: warning: format
 #   string is not a string literal (potentially insecure) [-Wformat-security]
 #    ARENDER(pctl, nvlist_array, nvl, name, val, nelem);
 #
 CFLAGS+= -Wno-format-security
 .include <bsd.lib.mk>
Index: head/cddl/lib/libumem/Makefile
===================================================================
--- head/cddl/lib/libumem/Makefile	(revision 302140)
+++ head/cddl/lib/libumem/Makefile	(revision 302141)
@@ -1,10 +1,10 @@
 # $FreeBSD$
 
 .PATH: ${.CURDIR}/../../../cddl/compat/opensolaris/lib/libumem
 
 LIB=	umem
 SRCS=	umem.c
-WARNS?=	0
+WARNS?=	3
 CFLAGS+= -I${.CURDIR}/../../../cddl/compat/opensolaris/lib/libumem
 
 .include <bsd.lib.mk>
Index: head/cddl/lib/libuutil/Makefile
===================================================================
--- head/cddl/lib/libuutil/Makefile	(revision 302140)
+++ head/cddl/lib/libuutil/Makefile	(revision 302141)
@@ -1,26 +1,26 @@
 # $FreeBSD$
 
 .PATH: ${.CURDIR}/../../../cddl/contrib/opensolaris/lib/libuutil/common
 .PATH: ${.CURDIR}/../../../sys/cddl/contrib/opensolaris/common/avl
 
 LIB=	uutil
 SRCS=	avl.c \
 	uu_alloc.c \
 	uu_avl.c \
 	uu_dprintf.c \
 	uu_ident.c \
 	uu_list.c \
 	uu_misc.c \
 	uu_open.c \
 	uu_pname.c \
 	uu_strtoint.c
 
-WARNS?=	0
+WARNS?=	1
 CFLAGS+= -DNATIVE_BUILD
 CFLAGS+= -I${.CURDIR}/../../../cddl/contrib/opensolaris/lib/libuutil/common
 CFLAGS+= -I${.CURDIR}/../../../sys/cddl/compat/opensolaris
 CFLAGS+= -I${.CURDIR}/../../../sys/cddl/contrib/opensolaris/uts/common
 CFLAGS+= -I${.CURDIR}/../../../cddl/compat/opensolaris/include
 CFLAGS+= -I${.CURDIR}/../../../cddl/contrib/opensolaris/head
 
 .include <bsd.lib.mk>