Don't load filessytem module for filesystem that was found but isn't used
for booting.

Obtain and/or use ETHER_ADDR_LEN.

Make libsa fsmod string pointer const.

branches: 1.9.2; 1.9.4;
Remove the code that tries to load the "ffs" kernel module during boot.
This is in line with the core decision than even modular kernels should
contain the ffs code.
I've left in the code that tries to load "nfs" and "ext2fs", but it
isn't clear that is necessary.
Removes a warning message that (usually) flashes past to fast to read.
AFAICT all the relevant kernels contain ffs (and nfs for that matter).

branches: 1.8.16; 1.8.20; 1.8.22;
For the x86 boot loader, autoload a kernel module corresponding to the
root file system type.

branches: 1.7.100; 1.7.104; 1.7.110; 1.7.114;
There is no point in initializing "rootpath" to "/".
Move it into BSS.

remove stuff just moved to bootparam.c and some variables which are
never used.

Move files[] from globals.c to its own file. Including all of globals.o
breaks the size limit for at least the pmax bootblocks.

Fixes PR port-pmax/15924 from Gregory McGarry.

Move files[] from open.c to globals.c, so that it's possible to
use libsa in an application where there are no file systems or
devices.

branches: 1.3.44; 1.3.46;
Another round of clean up, including fixes presented by Matthias Drochner
(PR#1404). Things to be noted:
- all IP addresses are now `struct in_addr's.
- the function rarp_getipaddress() no longer return `myip'; in stead
it returns -1 on failure (errno set), 0 on success. `myip' is set
as a size-effect.

new RCS ID format.

Standalone networking for network boot loaders.