Now I can install GIZA++ on Mac OS X by just typing “sudo port install giza-pp”. It is very convenient. However the file system on the machine I’m using isn’t case sensitive. So *.a3.final and *.A3.final are the same file.
In order to solve this, I decided to install giza-pp 1.0.7 from source code instead and modify model3.cc like I did in 2006 on my iBook G4 and it still works ^^.
I used to use UFS instead of HFS+. And I also found in Wikipedia that HFS+ can be case sensitive too. But I think it is not good idea to format or modify too much the machine that is not mine :-P.