GentooBuild

First of all I used the 3.2.1 pre-ogsi bundle available available here http://www-unix.globus.org/toolkit/downloads/3.2.1/#pre-ws
Next, I modify the install-gt3 file in the download. On about line 34, I change it from alpha|ia64) to alpha|ia64|x86_64).
Also, I comment out lines 167-183. These are the information-services-* bundles, and we don't need them (openldap refuses to compile at least on x86_64, I'm not sure about x86, but I don't need this stuff).
Finally, I change install-gt3 to use gpt 3.2 instead of gpt 3.0.1. So I replace all references to gpt-3.0.1 to gpt-3.2. You can get my install-gt3 file here http://www.cs.indiana.edu/~machrist/wiki/files/install-gt3 .
Download gpt-3.2 from http://www.gridpackagingtools.org/ , and replace the gpt-3.0.1 tarball with the gpt-3.2 tarball in the globus 3.2.1 installation bundle.
Now, unzip gpt-3.2 and remove the support/Compress-Zlib-1.21 with Compress-Zlib-1.34 which can be retrieved from http://www.cpan.org
now ./install-gt3 /path/to/install/directory should work