Experimentation reveals that gcc ignores -mrtd for the implicit
arithmetic functions (e.g. __udivdi3), but not for the implicit
memcpy() and memset() functions.  Mark the implicit arithmetic
functions with __attribute__((cdecl)) to compensate for this.

(Note: we cannot mark with with __cdecl, because we define __cdecl to
incorporate regparm(0) as well.)

allow the UNDI NIC interrupt to happen.

iSCSI hack.

This reverts commit 3cb133d27d.

This reverts commit ed06bd8a89.

This reverts commit 9e7b165017.

really ugly hack at present, but that doesn't hugely matter since I'm
aiming to change the interface to iSCSI devices anyway within the next
week.

already handled the INT13 call.

Inhibit -Werror when generating Makefile rules, to prevent warnings
from killing the dependency list.

Add some of the missing parts to libkir.h.

This driver really needs to be rewritten.
It tries to build both ISA and PCI images,
and makes life diffifult for the build system
and rom-o-matic.net.  The warning was just a reminder
that it needs to be cleaned up and re-factored
to split the PCI and ISA drivers.