After doing a cvs update an hour or so ago (i.e. current -current) I
see this when I try to build a GENERIC kernel:

cc  -O2 -Werror -Wall -Wmissing-prototypes -Wstrict-prototypes 
-Wpointer-arith -Wno-uninitialized -Wno-main -I. -I../../../../arch
-I../../../.. -nostdinc -DLKM -DDIAGNOSTIC -DMAXUSERS=32 -D_KERNEL -Di386  -c
../../../../dev/i2o/ld_iop.c
cc1: warnings being treated as errors
../../../../dev/i2o/ld_iop.c: In function `ld_iop_detach':
../../../../dev/i2o/ld_iop.c:339: warning: implicit declaration of function
`lddrain'
../../../../dev/i2o/ld_iop.c:352: warning: implicit declaration of function
`lddetach'
*** Error code 1

Stop.