I have a closed source Pod which contains C++ objects and headers.
When I use it in a project, I have a 'string' file not found error. How can I tell to Xcode to consider some headers as C++ headers and having their implementations in a closed static library ?
'string' file not found
The problem is most likely that you are including the header in a non-c++ source file. See for example http://stackoverflow.com/a/8901658.
In the future, please ask usage questions on StackOverflow or our mailing-list. As described in the CONTRIBUTING file, we reserve this issue tracker for issues with the tools themselves.
I apologize! I'll post my next comments on stackoverflow. Thanks for your answer!