error npfs on compilation

[Harald Barth]

> nnpfs is arla's kernel module, the filesystem driver that allows arla/afs
> to be mounted and used just like local filesystems. Unfortunately, nnpfs is
> very dependent on kernel version and such things. 

> We haven't tried it on a
> sparc for a long time, so I have no idea if it should compile straight
> away. You do need the build tree for your kernel, for headers and linking
> against.

Actually, we don't have any Linux/sparc box available because there
seem to be very few users with that combination. On Linux, the syscall
table's organization depends on architecture. Arla's nnpfs module
wants to interface with the syscall table. So as is, it won't fit.
I have to ponder some more how much of these dependencies on the
syscall table cease to exist with the procfs ioctl. Someone
enlighten me. Hmm.

Harald.