Re: C++ compilers on Linux supporting 64bit architecture?

[Chris Jones <jonesc hep phy cam ac uk>]

On Saturday 1 September 2007 12:49:37 pm Bo Berglund wrote:
> On Sat, 01 Sep 2007 05:23:18 -0600, Karl Larsen <k5di zianet com>
>
> wrote:
> >Bo Berglund wrote:
> >> 1) Is it possible to cross-compile on Linux 32 bit to produce an
> >> executable for the 64bit architecture Linux as well as 32 bit?
> >
> >    In Linux Bo, if you want to write in 64 bit you load the version of
> >Fedora 7 that is totally 64 bit. This is the f7 x86-64 distribution and
> >different than Microsoft, you can download this free. Then you can
> >compile in C or C++ with 64 bit. No need to cross/compile.
>
> Yes, I understand that in 64bit Linux you would be able to compile for
> the 64bit platform....
> But our development machines are mostly (95%) Windows 32bit systems
> and I had in mind to use VirtualPC in order to have the developers
> running Linux on their own Windows machines for compiles etc.
> Then we would use a single hardware Linux machine for actual testing.
>
> Unfortunately VirtualPC2007 does not support loading anything else
> than 32 bit operating systems into a virtual machine, so we are left
> with that. We use VPC2007 a lot for testing purposes, so we are
> comfortable with that system except for the 64bit support (or lack
> thereof).

You could take a different approach, and not use virtual machines at all ! 

Why not install the linux distro of your choice on some decent sized server or 
group of servers. Something with a decent cpu power and ram.

Then, on your developer machines install an X windows system. Something like 
the commercial exceed package or the free cygwin/X package. This will allow 
your developers to start full remote X sessions on your linux servers and use 
them directly for the compilation tests etc.

>
> Bo Berglund