An endian error

[Unga]

Hi all

I'm trying to compile RELENG_7 kernel on i386.

The "make buildkernel" develops an endian related error:

===> xl (depend)
@ -> /usr/src/sys
machine -> /usr/src/sys/i386/include
awk -f @/tools/makeobjops.awk @/kern/device_if.m -h
awk -f @/tools/makeobjops.awk @/kern/bus_if.m -h
awk -f @/tools/makeobjops.awk @/dev/pci/pci_if.m -h
awk -f @/tools/makeobjops.awk @/dev/mii/miibus_if.m -h
rm -f .depend
mkdep -f .depend -a   -nostdinc -D_KERNEL -DKLD_MODULE -DHAVE_KERNEL_OPTION_HEADERS -I. -I@ -I@/contrib/altq /usr/src/sys/modules/xl/../../pci/if_xl.c
===> zfs (depend)
@ -> /usr/src/sys
machine -> /usr/src/sys/i386/include
awk -f @/tools/vnode_if.awk @/kern/vnode_if.src -p
awk -f @/tools/vnode_if.awk @/kern/vnode_if.src -q
awk -f @/tools/vnode_if.awk @/kern/vnode_if.src -h
rm -f .depend
mkdep -f .depend -a   -nostdinc -DFREEBSD_NAMECACHE -D_SOLARIS_C_SOURCE -D_KERNEL -DKLD_MODULE -I/usr/src/sys/modules/zfs/../../cddl/compat/opensolaris 
:
:
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_geom.c

/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/rpc/xdr.c:63:2: error: #error "Only one of _BIG_ENDIAN or _LITTLE_ENDIAN may be defined"
mkdep: compile failed
*** Error code 1

Stop in /usr/src/sys/modules/zfs.
*** Error code 1

Where could possibly be wrong? Any ideas?

Many thanks in advance.

Best regards
Unga