[ODE] Autotools update.

[Rodrigo Hernandez]

Don't worry I wont :)

In fact I've been picking some tricks from other packages,
and let me tell you, I am not so proud of the mess I wrote for ODE anymore.

The issue I just fixed would prevent anyone from getting past ./configure,
so I was wondering if its being used.

Bram Stolk wrote:
> autotools support is important to me.
> And yes, I use it.
> So do the debian/suse/redhat/whatever package maintainers for ode, I 
> presume
> So whatever you do... don't break it! :-)
>
>   Bram