iASL patches in Debian

Hi Robert,

Here is a series of patches that I've been carrying in the iasl Debian package for some time. They are all refreshed and reworked to apply cleanly on top of acpica-unix-20100528.
The series consists a couple of trivial patches to fix building on the FreeBSD and Hurd kernel flavours of Debian and some larger ones to enable compiling ASL on big endian architectures.
It would be great if you could apply the patches to your source tree and ship new release with this work included.
Let me know if you want me to run more tests or change something in the patches.

I tested building tests/misc/grammar.asl (plus a number or other DSDTs I have here) with the whole set applied and the results were identical on BE and LE machines as well as being identical to what a clean iasl produces on x86[1].
You can see build logs for all the architectures supported here:
https://buildd.debian.org/status/package.php?p=acpica-unix

Thanks

[1]: checked with (1) an hex dump of the AML file, (2) the C file generated with -tc and (3) by decompiling the AML to DSL on x86 and comparing the results.
As a side note pristine iasl on x86 sefaults when building test/misc/grammar.asl, with these patches applied it doesn't.

mattia