Looks like r22100 breaks the build (at least for me):
[CC] ntoskrnl\cm\ntfunc.c
ntoskrnl\cm\ntfunc.c: In function `NtCreateKey':
ntoskrnl\cm\ntfunc.c:474: warning: implicit declaration of function
`ObpReleaseCapturedName'
make: *** [obj-i386\ntoskrnl\cm\ntfunc.o] Error 1