Allow (with a license warning) "options ZFS" to work in static kernels.

The 'make depend' rules have to use custom -I paths for the special compat
includes for the opensolaris/zfs headers.

This option will pull in the couple of files that are shared with dtrace,
but they appear to correctly use the MODULE_VERSION/MODULE_DEPEND rules
so loader should do the right thing, as should kldload.

Reviewed by:	pjd (glanced at)

12 files changed, 156 insertions, 4 deletions

diff --git a/sys/conf/files b/sys/conf/files
index 22b6693475ad..e7d65582ea83 100644
--- a/sys/conf/files
+++ b/sys/conf/files
@@ -139,6 +139,131 @@ cam/scsi/scsi_sg.c		optional sg
 cam/scsi/scsi_targ_bh.c		optional targbh
 cam/scsi/scsi_target.c		optional targ
 cam/scsi/smp_all.c		optional scbus
+# shared between zfs and dtrace
+cddl/compat/opensolaris/kern/opensolaris.c				optional zfs compile-with "${ZFS_C}"
+cddl/compat/opensolaris/kern/opensolaris_cmn_err.c			optional zfs compile-with "${ZFS_C}"
+cddl/compat/opensolaris/kern/opensolaris_kmem.c				optional zfs compile-with "${ZFS_C}"
+cddl/compat/opensolaris/kern/opensolaris_misc.c				optional zfs compile-with "${ZFS_C}"
+cddl/compat/opensolaris/kern/opensolaris_sunddi.c			optional zfs compile-with "${ZFS_C}"
+# zfs specific
+cddl/compat/opensolaris/kern/opensolaris_acl.c				optional zfs compile-with "${ZFS_C}"
+cddl/compat/opensolaris/kern/opensolaris_kobj.c				optional zfs compile-with "${ZFS_C}"
+cddl/compat/opensolaris/kern/opensolaris_kstat.c			optional zfs compile-with "${ZFS_C}"
+cddl/compat/opensolaris/kern/opensolaris_lookup.c			optional zfs compile-with "${ZFS_C}"
+cddl/compat/opensolaris/kern/opensolaris_policy.c			optional zfs compile-with "${ZFS_C}"
+cddl/compat/opensolaris/kern/opensolaris_string.c			optional zfs compile-with "${ZFS_C}"
+cddl/compat/opensolaris/kern/opensolaris_sysevent.c			optional zfs compile-with "${ZFS_C}"
+cddl/compat/opensolaris/kern/opensolaris_taskq.c			optional zfs compile-with "${ZFS_C}"
+cddl/compat/opensolaris/kern/opensolaris_uio.c				optional zfs compile-with "${ZFS_C}"
+cddl/compat/opensolaris/kern/opensolaris_vfs.c				optional zfs compile-with "${ZFS_C}"
+cddl/compat/opensolaris/kern/opensolaris_zone.c				optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/common/acl/acl_common.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/common/avl/avl.c				optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/common/nvpair/nvpair.c				optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/common/nvpair/nvpair_alloc_fixed.c		optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/common/unicode/u8_textprep.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/common/zfs/zfs_comutil.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/common/zfs/zfs_deleg.c				optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/common/zfs/zfs_fletcher.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/common/zfs/zfs_ioctl_compat.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/common/zfs/zfs_namecheck.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/common/zfs/zfs_prop.c				optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/common/zfs/zpool_prop.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/common/zfs/zprop_common.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/gfs.c				optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/vnode.c				optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/bplist.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/bpobj.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/dbuf.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/ddt.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/ddt_zap.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/dmu.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_diff.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_object.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_objset.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_send.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_traverse.c		optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_tx.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_zfetch.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/dnode.c			optional zfs compile-with "${ZFS_C}" \
+	warning "kernel contains CDDL licensed ZFS filesystem"
+cddl/contrib/opensolaris/uts/common/fs/zfs/dnode_sync.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_dataset.c		optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_deadlist.c		optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_deleg.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_dir.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_pool.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_prop.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_scan.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_synctask.c		optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/gzip.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/lzjb.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/metaslab.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/refcount.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/rrwlock.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/sa.c				optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/sha256.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/spa.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/spa_config.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/spa_errlog.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/spa_history.c		optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/spa_misc.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/space_map.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/txg.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/uberblock.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/unique.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/vdev.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_cache.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_file.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_geom.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_label.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_mirror.c		optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_missing.c		optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_queue.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_raidz.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_root.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/zap.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/zap_leaf.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/zap_micro.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_acl.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_byteswap.c		optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ctldir.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_debug.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_dir.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_fm.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_fuid.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_log.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_onexit.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_replay.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_rlock.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_sa.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_znode.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/zil.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/zio_checksum.c		optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/zio_compress.c		optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/zio_inject.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/zle.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/zrlock.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/fs/zfs/zvol.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/os/callb.c				optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/os/fm.c				optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/os/list.c				optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/os/nvpair_alloc_system.c		optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/zmod/adler32.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/zmod/deflate.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/zmod/inffast.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/zmod/inflate.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/zmod/inftrees.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/zmod/opensolaris_crc32.c		optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/zmod/trees.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/zmod/zmod.c				optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/zmod/zmod_subr.c			optional zfs compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/uts/common/zmod/zutil.c			optional zfs compile-with "${ZFS_C}"
 contrib/altq/altq/altq_cbq.c	optional altq \
 	compile-with "${NORMAL_C} -I$S/contrib/pf"
 contrib/altq/altq/altq_cdnr.c	optional altq
@@ -415,7 +540,7 @@ crypto/rijndael/rijndael-api.c	optional crypto | ipsec | wlan_ccmp
 crypto/sha1.c			optional carp | crypto | ipsec | \
 					 netgraph_mppc_encryption | sctp
 crypto/sha2/sha2.c		optional crypto | geom_bde | ipsec | random | \
-					 sctp
+					 sctp | zfs
 ddb/db_access.c			optional	ddb
 ddb/db_break.c			optional	ddb
 ddb/db_capture.c		optional	ddb
diff --git a/sys/conf/files.amd64 b/sys/conf/files.amd64
index ce3c30773cc9..d243a6d1097d 100644
--- a/sys/conf/files.amd64
+++ b/sys/conf/files.amd64
@@ -133,6 +133,7 @@ amd64/amd64/uio_machdep.c	standard
 amd64/amd64/uma_machdep.c	standard
 amd64/amd64/vm_machdep.c	standard
 amd64/pci/pci_cfgreg.c		optional	pci
+cddl/contrib/opensolaris/common/atomic/amd64/opensolaris_atomic.S	optional zfs compile-with "${ZFS_S}"
 crypto/aesni/aesencdec_amd64.S	optional aesni
 crypto/aesni/aeskeys_amd64.S	optional aesni
 crypto/aesni/aesni.c		optional aesni
diff --git a/sys/conf/files.arm b/sys/conf/files.arm
index 588779048277..5469c6b8d0e0 100644
--- a/sys/conf/files.arm
+++ b/sys/conf/files.arm
@@ -47,6 +47,7 @@ arm/arm/vm_machdep.c		standard
 arm/fpe-arm/armfpe_glue.S	optional	armfpe
 arm/fpe-arm/armfpe_init.c	optional	armfpe
 arm/fpe-arm/armfpe.S		optional	armfpe
+cddl/compat/opensolaris/kern/opensolaris_atomic.c	optional zfs compile-with "${ZFS_C}"
 dev/hwpmc/hwpmc_arm.c		optional	hwpmc
 dev/ofw/openfirm.c		optional	fdt
 dev/ofw/openfirmio.c		optional	fdt
diff --git a/sys/conf/files.i386 b/sys/conf/files.i386
index 2a65043ef646..427bce54ba72 100644
--- a/sys/conf/files.i386
+++ b/sys/conf/files.i386
@@ -71,6 +71,7 @@ hptrr_lib.o			optional	hptrr			\
 	compile-with	"uudecode < $S/dev/hptrr/i386-elf.hptrr_lib.o.uu" \
 	no-implicit-rule
 #
+cddl/contrib/opensolaris/common/atomic/i386/opensolaris_atomic.S	optional zfs compile-with "${ZFS_S}"
 compat/linprocfs/linprocfs.c	optional linprocfs
 compat/linsysfs/linsysfs.c	optional linsysfs
 compat/linux/linux_emul.c	optional compat_linux
diff --git a/sys/conf/files.ia64 b/sys/conf/files.ia64
index e3412306571a..f9a62afbacb8 100644
--- a/sys/conf/files.ia64
+++ b/sys/conf/files.ia64
@@ -28,6 +28,7 @@ ukbdmap.h			optional	ukbd_dflt_keymap	\
 	no-obj no-implicit-rule before-depend				\
 	clean		"ukbdmap.h"
 #
+cddl/contrib/opensolaris/common/atomic/ia64/opensolaris_atomic.S	optional zfs compile-with "${ZFS_S}"
 compat/freebsd32/freebsd32_ioctl.c	optional	compat_freebsd32
 compat/freebsd32/freebsd32_misc.c	optional	compat_freebsd32
 compat/freebsd32/freebsd32_syscalls.c	optional	compat_freebsd32
diff --git a/sys/conf/files.mips b/sys/conf/files.mips
index b95d0620926e..2ae3bc938058 100644
--- a/sys/conf/files.mips
+++ b/sys/conf/files.mips
@@ -85,6 +85,7 @@ libkern/ucmpdi2.c		standard
 #libkern/mips/strcmp.S		standard
 #libkern/mips/strncmp.S		standard
 
+cddl/compat/opensolaris/kern/opensolaris_atomic.c	optional zfs compile-with "${ZFS_C}"
 compat/freebsd32/freebsd32_ioctl.c	optional	compat_freebsd32
 compat/freebsd32/freebsd32_misc.c	optional	compat_freebsd32
 compat/freebsd32/freebsd32_syscalls.c	optional	compat_freebsd32
diff --git a/sys/conf/files.pc98 b/sys/conf/files.pc98
index dd47ee91aa66..a8c71a56c861 100644
--- a/sys/conf/files.pc98
+++ b/sys/conf/files.pc98
@@ -38,6 +38,7 @@ ukbdmap.h			optional	ukbd_dflt_keymap	\
 	no-obj no-implicit-rule before-depend				\
 	clean		"ukbdmap.h"
 #
+cddl/contrib/opensolaris/common/atomic/i386/opensolaris_atomic.S	optional zfs compile-with "${ZFS_S}"
 compat/linprocfs/linprocfs.c	optional linprocfs
 compat/linsysfs/linsysfs.c	optional linsysfs
 compat/linux/linux_emul.c	optional compat_linux
@@ -204,7 +205,6 @@ i386/svr4/svr4_locore.s		optional compat_svr4	\
 	dependency	"svr4_assym.h"	\
 	warning "COMPAT_SVR4 is broken and should be avoided"
 i386/svr4/svr4_machdep.c	optional compat_svr4
-#
 kern/kern_clocksource.c		standard
 kern/imgact_aout.c		optional compat_aout
 kern/imgact_gzip.c		optional gzip
diff --git a/sys/conf/files.powerpc b/sys/conf/files.powerpc
index 9af9d9350de1..6a94caac9a2d 100644
--- a/sys/conf/files.powerpc
+++ b/sys/conf/files.powerpc
@@ -14,6 +14,9 @@ font.h				optional	sc			\
 	no-obj no-implicit-rule before-depend				\
 	clean	"font.h ${SC_DFLT_FONT}-8x14 ${SC_DFLT_FONT}-8x16 ${SC_DFLT_FONT}-8x8"
 #
+# There is only an asm version on ppc64.
+cddl/compat/opensolaris/kern/opensolaris_atomic.c			optional zfs powerpc compile-with "${ZFS_C}"
+cddl/contrib/opensolaris/common/atomic/powerpc64/opensolaris_atomic.S	optional zfs powerpc64 compile-with "${ZFS_S}"
 crypto/blowfish/bf_enc.c	optional	crypto | ipsec
 crypto/des/des_enc.c		optional	crypto | ipsec | netsmb
 dev/bm/if_bm.c			optional	bm powermac
diff --git a/sys/conf/files.sparc64 b/sys/conf/files.sparc64
index 1ff61b1147b1..68c041357311 100644
--- a/sys/conf/files.sparc64
+++ b/sys/conf/files.sparc64
@@ -22,6 +22,7 @@ ukbdmap.h			optional	ukbd_dflt_keymap	\
 	no-obj no-implicit-rule before-depend				\
 	clean		"ukbdmap.h"
 #
+cddl/contrib/opensolaris/common/atomic/sparc64/opensolaris_atomic.S	optional zfs compile-with "${ZFS_S}"
 crypto/blowfish/bf_enc.c	optional	crypto | ipsec
 crypto/des/des_enc.c		optional	crypto | ipsec | netsmb
 dev/atkbdc/atkbd.c		optional	atkbd atkbdc
diff --git a/sys/conf/kern.post.mk b/sys/conf/kern.post.mk
index 2a89294bd159..5f878d85e545 100644
--- a/sys/conf/kern.post.mk
+++ b/sys/conf/kern.post.mk
@@ -152,6 +152,12 @@ genassym.o: $S/$M/$M/genassym.c
 
 ${SYSTEM_OBJS} genassym.o vers.o: opt_global.h
 
+# We have "special" -I include paths for opensolaris/zfs files in 'depend'.
+CFILES_NOZFS=	${CFILES:N*/opensolaris/*}
+SFILES_NOZFS=	${SFILES:N*/opensolaris/*}
+CFILES_ZFS=	${CFILES:M*/opensolaris/*}
+SFILES_ZFS=	${SFILES:M*/opensolaris/*}
+
 kernel-depend: .depend
 # The argument list can be very long, so use make -V and xargs to
 # pass it to mkdep.
@@ -160,10 +166,14 @@ SRCS=	assym.s vnode_if.h ${BEFORE_DEPEND} ${CFILES} \
 	${MFILES:T:S/.m$/.h/}
 .depend: .PRECIOUS ${SRCS}
 	rm -f .newdep
-	${MAKE} -V CFILES -V SYSTEM_CFILES -V GEN_CFILES | \
+	${MAKE} -V CFILES_NOZFS -V SYSTEM_CFILES -V GEN_CFILES | \
 	    MKDEP_CPP="${CC} -E" CC="${CC}" xargs mkdep -a -f .newdep ${CFLAGS}
-	${MAKE} -V SFILES | \
+	${MAKE} -V CFILES_ZFS | \
+	    MKDEP_CPP="${CC} -E" CC="${CC}" xargs mkdep -a -f .newdep ${ZFS_CFLAGS}
+	${MAKE} -V SFILES_NOZFS | \
 	    MKDEP_CPP="${CC} -E" xargs mkdep -a -f .newdep ${ASM_CFLAGS}
+	${MAKE} -V SFILES_ZFS | \
+	    MKDEP_CPP="${CC} -E" xargs mkdep -a -f .newdep ${ZFS_ASM_CFLAGS}
 	rm -f .depend
 	mv .newdep .depend
 
diff --git a/sys/conf/kern.pre.mk b/sys/conf/kern.pre.mk
index 6b57c454f873..b09342821618 100644
--- a/sys/conf/kern.pre.mk
+++ b/sys/conf/kern.pre.mk
@@ -131,6 +131,12 @@ NORMAL_C_NOWERROR= ${CC} -c ${CFLAGS} ${PROF} ${.IMPSRC}
 NORMAL_M= ${AWK} -f $S/tools/makeobjops.awk ${.IMPSRC} -c ; \
 	  ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.PREFIX}.c
 
+# Special flags for managing the compat compiles for ZFS
+ZFS_CFLAGS=	-DFREEBSD_NAMECACHE -DBUILDING_ZFS -nostdinc -I$S/cddl/compat/opensolaris -I$S/cddl/contrib/opensolaris/uts/common/fs/zfs -I$S/cddl/contrib/opensolaris/uts/common/zmod -I$S/cddl/contrib/opensolaris/uts/common -I$S -I$S/cddl/contrib/opensolaris/common/zfs -I$S/cddl/contrib/opensolaris/common ${CFLAGS} -Wno-unknown-pragmas -Wno-missing-prototypes -Wno-undef -Wno-strict-prototypes -Wno-cast-qual -Wno-parentheses -Wno-redundant-decls -Wno-missing-braces -Wno-uninitialized -Wno-unused -Wno-inline -Wno-switch -Wno-pointer-arith -Wno-unknown-pragmas
+ZFS_ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${ZFS_CFLAGS}
+ZFS_C=		${CC} -c ${ZFS_CFLAGS} ${WERROR} ${PROF} ${.IMPSRC}
+ZFS_S=		${CC} -c ${ZFS_ASM_CFLAGS} ${WERROR} ${.IMPSRC}
+
 .if ${MK_CTF} != "no"
 NORMAL_CTFCONVERT=	${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
 .elif ${MAKE_VERSION} >= 5201111300
diff --git a/sys/conf/options b/sys/conf/options
index 675c204face9..e602a39a4a0a 100644
--- a/sys/conf/options
+++ b/sys/conf/options
@@ -837,6 +837,8 @@ XBOX			opt_xbox.h
 # XFS
 XFS
 
+ZFS			opt_dontuse.h
+
 # Interrupt filtering
 INTR_FILTER