build.sh is failing for me during the cleandir phase.  Here is the
output:

cleandir ===> usr.bin/kdump
rm -f kdump.o subr.o setemul.o siginfo.o kdump-ioctl.o  kdump.ln subr.ln setemul.ln siginfo.ln kdump-ioctl.ln
rm -f siginfo.c kdump-ioctl.c
rm -f a.out [Ee]rrs mklog core *.core .gdbinit kdump
rm -f kdump.cat1
rm -f .depend kdump-ioctl.d kdump.d setemul.d siginfo.d subr.d /usr/src/usr.bin/kdump/tags
cleandir ===> usr.bin/ktrace
rm -f ktrace.o subr.o  ktrace.ln subr.ln
rm -f a.out [Ee]rrs mklog core *.core .gdbinit ktrace
rm: ktrace: is a directory
*** Error code 1

What am I doing wrong?

-russ