wine users - Jul 2012 - Getting all needed dependencies to compile standard wine on 64-bit system

I have looked and don't see instructions for getting dependencies for any
current Ubuntu systems.
apt-get build-dep wine1.5 gets the 64-bit libraries. 
apt-get build-dep wine1.5-386 and 386:386 gets "unable to find source
package."
Using the script install-wine-deps.sh gives me a message that it can't find
32-bit libraries for my version of Ubuntu, which is Precise 64-bit.
There seems to be no current list of Precise 32-bit packages so I can install
them myself.