exim hpux10

We're upgrading from hpux9.05 to hpux10.20.

in exim-1.62/OS/os.h-HP-UX we have:

#define KERNEL_PATH     "/hp-ux"

That's not true on hpux10.20. Now it appears to be
/stand/vmunix.

I know others are running exim on hpux10. What did you do? Symlink
/hp-ux?