running 32 bit apps on amd64 version of Ubuntu

[Paul Johnson]

I came from Fedora land about 6 months ago, please pardon me for my innocence.

In this Ubuntu 8.04 system, I have the amd64 version installed.  Some
programs are not compatible with 64 bit, and so I need to compile the
32 bit version of the program I need. The program is written in C++
and it relies on the wx GTK toolkit.

In Fedora, here is what would happen. There were i386 and x86_64
versions of libraries, and one could install both, and then when
programs were compiled, options were used to determine which version
was used.

In Ubuntu, I am trying to figure out a similar functionalit.  In
Synaptic, I don't see an option where I specify that I want the i386
version of wxGTK, for example.

And in the terminal, I don't see output from dpkg or apt-get that
helps me specify that I need the i386 libraries installed.  In fact,
the package names don't have the architecture names attached to them
(as they did in Fedora).

$ dpkg -l libwxgtk2.8-0
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Installed/Config-f/Unpacked/Failed-cfg/Half-inst/t-aWait/T-pend
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name                    Version                 Description
+++-=======================-=======================-==============================================================
ii  libwxgtk2.8-0           2.8.7.1-0ubuntu3        wxWidgets
Cross-platform C++ GUI toolkit (GTK+ runtime)

So, I guess in the ideal case, I'd like to install the i386 version of
libwxgtk2.8-0, and have all of the attendant requirements installed.
Presumably, the'd go into /usr/lib32 and /usr/include32 or some
separate path.


Huh?

-- 
Paul E. Johnson
Professor, Political Science
1541 Lilac Lane, Room 504
University of Kansas