I want to move my current project to C++11. The code all compiles using clang++ -std=c++0x. That is the easy part :-) . The difficult part is dealing with external libraries. One cannot rely on linking one's C++11 objects with external libraries that were not compiled with c++11 (see http://gcc.gnu.org/wiki/Cxx11AbiCompatibility). Boost, for example, certainly needs re-building (Why can't clang with libc++ in c++0x mode link this boost::program_options example?). I have source for all of the external libraries I use, so I can (with some pain) theoretically re-build these libs with C++11. However, that still leaves me with some problems:
Developing in a mixed C++03/C++11 environment: I have some old projects using C++03 that require occasional maintenance. Of course, I'll want to link these with existing versions of external libraries. But for my current (and new) projects, I want to link with my re-built C++11 versions of the libraries. How do I organise my development environments (currently Ubuntu 12.04 and Mac OS X 10.7) to cope with this?
I'm assuming that this problem will be faced by many developers. It's not going to go away, but I haven't found a recommended and generally approved solution.
Deployment: Currently, I deploy to Ubuntu 12.04 LTS servers in the cloud. Experience leads one to depend (where possible) on the standard packages (e.g. libboost) available with the linux distribution. If I move my current project to c++11, my understanding is that I will have to build my own versions of the external libraries I use. My guess is that at some point this will change, and their will be 'standard' versions of library packages with C++11 compatibility. Does anyone have any idea