The ifcpu.c32 and ifcpu64.c32 modules take arguments including
the form <true_label> -- <false_label>.  It is convenient to
allow these labels to be not just a single word, but to include
parameters.  This is useful for <TAB>-editing and modifying the
command-line to include parameters you'd like to pass.

Not-yet-tested: Shao Miller <shao.miller@yrdsb.edu.on.ca>

This adds (basic) support for GRUB stage2 image files.

Loading a stage2 image will probably give you a GRUB prompt, with GRUB's
"root" set at "(hd0)" (ie, entire first disk). Maybe the "root" will
differ in less common setups. (One can of course select another disk
and/or partition with GRUB's "root" command.)

This has only been tested with version 3.2 stage2 images (as used by
GRUB 0.97). I'm not familiair with differences with other versions.

GRUB's loading mechanism allows to somehow provide stage2 with the
selected disk and partition, BSD slice, etc. (ie, to tell stage2 what
it's "root" is). I don't yet understand the notation used in that
mechanism. Besides, since stage2 images will not necessarily be loaded
from the disk (and partition, etc.) they were installed to, it seems
best to just use the first disk.

GRUB stage1_5 image files load quite similarly. However, for some
reason, a short test only got those images to print an error ("Error
17"). This could be related to the partition info these images are
provided with when they're loaded. I have never used stage1_5 images,
and do not know how to properly use and configure those, so my test
stopped there, and stage1_5 images are not supported.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

Resolved Conflicts:
	com32/modules/cat.c

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

Loop over multiple files, use argv[0] for the program name, and copy
4K at a time.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

Remove unused variable as part of -Werror cleanup.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

Remove unused variable as part of -Werror cleanup.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

Remove unused variable as part of -Werror cleanup.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

Part of -Werror cleanup.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

Remove unused variable as part of -Werror cleanup.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>