在Xcode 3.2.5中缺少项目信息/构建选项卡中的GCC 4.2选项

I have two very similar iPhone application projects open side by side, and in the Project Info Build tab of one, I have a bunch of GCC 4.2 option sections (in between Versioning and Interface Builder XIB Compiler - Options) in one of the projects but not the other.I have two very similar iPhone application proj