Mine

Warning: Object directory not changed from original /root/HDA
@ -> /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/sound/pcm/channel_if.m -h
awk -f @/tools/makeobjops.awk @/dev/sound/pcm/mixer_if.m -h
cc -O2 -fno-strict-aliasing -pipe -DPCM_USE_64BIT_ARITH -Werror -D_KERNEL -DKLD_MODULE -nostdinc -I-   -I. -I@ -I@/contrib/altq -I@/../include -I/usr/include -finline-limit=8000 -fno-common  -mno-align-long-strings -mpreferred-stack-boundary=2  -mno-mmx -mno-3dnow -mno-sse -mno-sse2 -ffreestanding -Wall -Wredundant-decls -Wnested-externs -Wstrict-prototypes  -Wmissing-prototypes -Wpointer-arith -Winline -Wcast-qual  -fformat-extensions -std=c99 -c hdac.c
hdac.c: In function `hdac_audio_ctl_ossmixer_init':
hdac.c:2561: error: `SD_F_SOFTPCMVOL' undeclared (first use in this function)
hdac.c:2561: error: (Each undeclared identifier is reported only once
hdac.c:2561: error: for each function it appears in.)
hdac.c:2587: warning: implicit declaration of function `mix_setparentchild'
hdac.c:2587: warning: nested extern declaration of `mix_setparentchild'
hdac.c:2590: warning: implicit declaration of function `mix_setrealdev'
hdac.c:2590: warning: nested extern declaration of `mix_setrealdev'
*** Error code 1