compiling linux-2.6.10-1.ydl.1: no go

[Eric Björkvall]

Hi!

I'm trying to compile linux-2.6.10-1.ydl.1 ( I'm using software raid so 
I have to compile the kernel... )
on a G5 MP 1.8

No go, fails when linking:

   LD      .tmp_vmlinux1
arch/ppc/platforms/built-in.o(.text+0x1068): In function 
`flush_disable_caches':
: undefined reference to `__flush_disable_L1'
make: *** [.tmp_vmlinux1] Error 1

Any clues?

Cheers,
Eric