What steps will reproduce the problem?
1. Run "python build_mozc.py build -c Release mac/mac.gyp:GoogleJapaneseInput 
mac/mac.gyp:gen_launchd_confs", then it get errors.

What is the expected output? What do you see instead?
It should work well without errors even we're using Mac OS X Lion.

What version of the product are you using? On what operating system?
Mac OS X Lion 10.7
$ uname -rsv
Darwin 11.0.0 Darwin Kernel Version 11.0.0: Sat Jun 18 12:56:35 PDT 2011; 
root:xnu-1699.22.73~1/RELEASE_X86_64

$ xcodebuild -version
Xcode 4.2
Build version 4D75

$ svn info|grep Revision
Revision: 59

Please provide any additional information below.
Replace SetRect(&rect, 0, 0, 1, 1)  to rect.top = 0; rect.left = 0; rect.right 
= 1; rect.bottom = 1;
SetRect seems to be gone on Mac OS X Lion.

Also, need this patch I've posted due to latest Mac OS X SDK.
http://code.google.com/p/mozc/issues/detail?id=80

I think we've better to replace Carbon code to Cocoa one and if could, replace 
Qt as well to provide the best experiences on Mac OS X.