drm_bufs.c not compiling on i386-current

[Hisashi T Fujinaka <htodd%twofifty.com@localhost>]

#   compile  drm/drm_bufs.o
/usr/src/obj.i386/tooldir.NetBSD-4.99.66-i386/bin/i386--netbsdelf-gcc -O2 -Wall 
-Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith -Wno-sign-compare 
-Wno-traditional  -Werror  -ffreestanding  -fno-strict-aliasing 
-Wno-pointer-sign  -I/usr/src/common/include -I/usr/src/common/include  
-nostdinc -I. -I/usr/src/sys/modules/drm -isystem /usr/src/sys -isystem 
/usr/src/sys/arch -isystem /usr/src/sys/../common/include -D_KERNEL -D_LKM 
-D_MODULE -c    /usr/src/sys/dev/drm/drm_bufs.c
cc1: warnings being treated as errors
/usr/src/sys/dev/drm/drm_bufs.c: In function 'drm_addmap':
/usr/src/sys/dev/drm/drm_bufs.c:181: warning: implicit declaration of function 
'btop'
*** Error code 1

--
Hisashi T Fujinaka - htodd%twofifty.com@localhost
BSEE(6/86) + BSChem(3/95) + BAEnglish(8/95) + MSCS(8/03) + $2.50 = latte