[head tinderbox] failure on amd64/amd64

[FreeBSD Tinderbox]

TB --- 2006-05-12 14:19:17 - tinderbox 2.3 running on freebsd-current.sentex.ca
TB --- 2006-05-12 14:19:17 - starting HEAD tinderbox run for amd64/amd64
TB --- 2006-05-12 14:19:17 - cleaning the object tree
TB --- 2006-05-12 14:20:03 - checking out the source tree
TB --- 2006-05-12 14:20:03 - cd /tinderbox/HEAD/amd64/amd64
TB --- 2006-05-12 14:20:03 - /usr/bin/cvs -f -R -q -d/home/ncvs update -Pd -A src
TB --- 2006-05-12 14:27:50 - building world (CFLAGS=-O2 -pipe)
TB --- 2006-05-12 14:27:50 - cd /src
TB --- 2006-05-12 14:27:50 - /usr/bin/make -B buildworld
>>> Rebuilding the temporary build tree
>>> stage 1.1: legacy release compatibility shims
>>> stage 1.2: bootstrap tools
>>> stage 2.1: cleaning up the object tree
>>> stage 2.2: rebuilding the object tree
>>> stage 2.3: build tools
>>> stage 3: cross tools
>>> stage 4.1: building includes
>>> stage 4.2: building libraries
>>> stage 4.3: make dependencies
>>> stage 4.4: building everything
>>> stage 5.1: building 32 bit shim libraries
TB --- 2006-05-12 16:20:05 - generating LINT kernel config
TB --- 2006-05-12 16:20:05 - cd /src/sys/amd64/conf
TB --- 2006-05-12 16:20:05 - /usr/bin/make -B LINT
TB --- 2006-05-12 16:20:05 - building LINT kernel (COPTFLAGS=-O2 -pipe)
TB --- 2006-05-12 16:20:05 - cd /src
TB --- 2006-05-12 16:20:05 - /usr/bin/make buildkernel KERNCONF=LINT
>>> Kernel build for LINT started on Fri May 12 16:20:05 UTC 2006
>>> stage 1: configuring the kernel
>>> stage 2.1: cleaning up the object tree
>>> stage 2.2: rebuilding the object tree
>>> stage 2.3: build tools
>>> stage 3.1: making dependencies
[...]
===> sound/driver/ess (depend)
@ -> /src/sys
machine -> /src/sys/amd64/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 @/isa/isa_if.m -h
awk -f @/tools/makeobjops.awk @/dev/pci/pci_if.m -h
make: don't know how to make es1888.c. Stop
*** Error code 2

Stop in /src/sys/modules/sound/driver.
*** Error code 1

Stop in /src/sys/modules/sound.
*** Error code 1

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

Stop in /obj/amd64/src/sys/LINT.
*** Error code 1

Stop in /src.
*** Error code 1

Stop in /src.
TB --- 2006-05-12 16:23:26 - WARNING: /usr/bin/make returned exit code  1 
TB --- 2006-05-12 16:23:26 - ERROR: failed to build lint kernel
TB --- 2006-05-12 16:23:26 - tinderbox aborted
TB --- 1.70 user 6.86 system 7449.29 real