C++ compilers on Linux supporting 64bit architecture?

[Matthew Saltzman]

On Sat, 2007-09-01 at 05:23 -0600, Karl Larsen wrote:

>     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.

Just to be contrary, what would you suggest if Bo only has access to
32-bit hardware, but wants to create 64-bit binaries to run on another
machine?
-- 
                Matthew Saltzman

Clemson University Math Sciences
mjs AT clemson DOT edu
http://www.math.clemson.edu/~mjs