failing to link custom kernel on 10.0-release

[Benjamin Kaduk]

Hi all,

I'm trying to build this kernel config (amd64) on a 10-release machine:
http://web.mit.edu/kaduk/freebsd/tmp/PALAVER

It gets to "linking kernel.debug" and then spews a pile of errors about 
"undefined reference to '__mtx_assert'" for (presumably) every object 
file.

I suspect that this is related to DEBUG_LOCKS, but what am I missing?

Thanks,

Ben Kaduk