[boost] Boost Interchange / Carbon

Hello I am new to this list. I wonder if someone can help me: Is it possible to use XCode on OS X 10.7 to build a .dylib which depends on Boost Interchange library (which we need to be statically linked), for Carbon? The reason I ask is that: when XCode version >=4.2, Carbon is (apparently) no longer supported, but Boost Interchange Library compiles successfully. when XCode version <4.2, Carbon is supported, but Boost Interchange library cannot compile (due to an compiler error involving the handling of Templates, where it appears the library employs a mechanism supported only in the later XCode versions). Is it possible to achieve this? Could somebody offer some pointers? Thank you in advance Tom