I'm looking for a (preferably open source) tool that, given a large body of C/C++ code, will generate a visual or maybe XML graph of dependencies between classes (C++) and/or files (C).
The idea would be that, if you had to convert the code to another language, you'd like to be able to get the lowest level classes compiling first, and build up from there. So, you'd first need to identify which classes those are.
As far as I can tell, Doxygen doesn't have quite this capability, but I could be wrong.