GDC X86_64 port and dmd 0.173 upgrade attempt

[David Morian]

Hi,

I don't known it this is the best place for gdc development discussions, but
the sourceforge site seems inactive, so I do it here.

I have been playing with gdc in the last days and I have made an
experimental port to X86_64 and an *incomplete* upgrade to dmd 0.173. It
seems to work, at least with simple tests and in my home.

The patch can be downloaded from:
http://wuwei.iespana.es/gdc/gdc-0.20_mo.patch.gz

md5sum: 883fe2481f79e50be731d26c7f334999

The file it's some big because I have moved the patch files in gdc from
the "d" root to a nice (to me) "d/patches", sorry.

I want to warn some points:

* It's the first time I get into the gcc/gdc/dmd internals, and I have made
the patch in a few hours in my free time, so you can expect many things
wrong. 

* The port to X86_64 is experimental. Many things remain to do, specially in
the phobos area.

* The upgrade to dmd 0.173 is experimental too and incompleted. Array
literals, foreach_reverse and template variadics seems to work in simple
cases. But I am sure that I had left out many things. Moreover, I have only
upgraded the key parts of phobos.

* I haved patched some things in the installation process because, in my
machine, gdc was installing ligphobos.a and libgphobos.spec in /lib64. With
some luck, the install will continue working in other machines...

* In the patch you will see some artifacts from a port to the sony psp in
which I'm working too, they should be harmless.

* I have only tested it in a X86_64 machine with gcc 4.0.2.

* I am sure that I have broken many things that worked, so use with caution.

Oh, I have some questions about gdc and I would like to known if this is the
place for them.


Regards.

-- 
David Morian.