For the last several days, I've been unable to do a 'build.sh release'
because of problems in XEN0:

#    create  XEN0/config_time.h
cp config_time.src config_time.h
#    create  XEN0/.depend
/usr/BUILD/tools/bin/nbmkdep -a -- -x assembler-with-cpp -traditional-cpp -D_LOC
ORE -Di386 -I. -I/usr/BUILD/obj/sys/arch/i386/compile/XEN0/xen-ma -I/usr/src/sys
/arch -I/usr/src/sys -nostdinc -DLKM -DDIAGNOSTIC -DDEBUG -DMAXUSERS=32 -D_KERNE
L -D_KERNEL_OPT -I/usr/src/sys/dist/ipf rm -f i386 ln -s /usr/src/sys/arch/i386/
include i386 rm -f x86 ln -s /usr/src/sys/arch/x86/include x86 rm -rf xen-ma mkd
ir xen-ma ln -s ../i386 xen-ma/machine /usr/src/sys/arch/xen/i386/locore.S /usr/
src/sys/arch/xen/i386/spl.S /usr/src/sys/arch/xen/i386/vector.S /usr/src/sys/arc
h/i386/i386/db_dbgreg.S /usr/src/sys/arch/i386/i386/in_cksum.S /usr/src/sys/cryp
to/des/arch/i386/des_enc.S /usr/src/sys/crypto/des/arch/i386/des_cbc.S /usr/src/
sys/crypto/blowfish/arch/i386/bf_enc.S /usr/src/sys/crypto/blowfish/arch/i386/bf
_cbc.S /usr/src/sys/arch/i386/i386/svr4_sigcode.S /usr/src/sys/arch/i386/i386/ib
cs2_sigcode.S /usr/src/sys/arch/i386/i386/linux_sigcode.S /usr/src/sys/arch/i386
/i386/freebsd_sigcode.S
i386--netbsdelf-gcc: rm: No such file or directory
i386--netbsdelf-gcc: ln: No such file or directory
i386--netbsdelf-gcc: rm: No such file or directory
i386--netbsdelf-gcc: ln: No such file or directory
i386--netbsdelf-gcc: rm: No such file or directory
i386--netbsdelf-gcc: mkdir: No such file or directory
i386--netbsdelf-gcc: ln: No such file or directory
i386--netbsdelf-gcc: ../i386: No such file or directory
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
cc1: error: unrecognized option `-f'
nbmkdep: compile failed.