linux-2.6.11.8 failure to build...kernel

[mel kravitz <melk@switchpwr.com>]

Hi,
Anyone building kernels succesfully after linux-2.6.10?.. 2.6.11.8 
failes 'make boot' with:
<snip>
 LD      .tmp_vmlinux1
kernel/built-in.o(.spinlock.text+0x58): In function `_read_trylock':
: undefined reference to `_raw_read_trylock'
kernel/built-in.o(.spinlock.text+0x64): In function `_read_trylock':
: undefined reference to `_raw_read_trylock'
make: *** [.tmp_vmlinux1] Error 1
</snip>
-Mel