Debian compilation fixes

[Rudd-O]

Max Mehnert has contributed a series of fixes to make gas and gcc
happy on Debian. Please test them on other distributions.

As usual, my code is in my repo:

http://git.rudd-o.com/zfs/

And I don't need to remind you that the resync I made with Emmannuel's
tarball is segfaulting. So if you need the compile fix, just cherry-
pick the latest commit.

[Emmanuel Anne]

Just tested this and it seems ok.
I couldn't import the mirrored pool because it detected it's in use by another machine so it's not a very good test though.

But while doing so I found a new minor bug, the message I got was like :
"The pool is being used by another machine "machine name" which accessed it for the last time on "date""
and the date given was 1st January 1970, so clearly the access time is not updated for the pool.

I'll try to find a way to create a non mirrored pool on an external drive to do more testing.

2009/7/14 Rudd-O <rud...@rudd-o.com>

[Rudd-O]

can you verify this erroneous behavior *both* with the revision with
the patch to fix GAS, and with the revision immediately before it?

We really need someone to do a bisect on their machines of every new
revision since the last Correia one, test every revision to find
obvious bugs. I wish I could do this myself but my storage options
are very limited in terms of hardware to go around testing these.