No such file or directory when compiling 2.5.46: sd.h

I get the following error when compiling 2.5.46

Where is that file?

--------

gcc -Wp,-MD,drivers/message/i2o/.i2o_scsi.o.d -D__KERNEL__ -Iinclude -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fomit-frame-pointer -fno-strict-aliasing -fno-common -pipe -mpreferred-stack-boundary=2 -march=i386 -Iarch/i386/mach-generic -nostdinc -iwithprefix include
-DKBUILD_BASENAME=i2o_scsi -c -o drivers/message/i2o/i2o_scsi.o
drivers/message/i2o/i2o_scsi.c drivers/message/i2o/i2o_scsi.c:60: ../../scsi/sd.h: No such file or directory
make[3]: *** [drivers/message/i2o/i2o_scsi.o] Error 1 make[2]: *** [drivers/message/i2o] Error 2
make[1]: *** [drivers/message] Error 2
make: *** [drivers] Error 2

Its no longer needed. Once 2.5.47 is out I'll put out a -ac (.46 hasnt passed my test sets)