I've read a few variations of the disclaimer for this feature: "This is only meant to help gcc developers. The format is not documented, and it's subject to change at any time." Nevertheless, the dump output is enormously useful. We parse it and use it to automatically generate scripting language wrappers for API's that are impractical to wrap using other methods (like swig). The format generated by gcc-4.1.* and gcc-4.2.* is pretty consistent, but it appears to have changed significantly starting with 4.3.*. In particular, in the newer format, the identifier_node for a type_decl doesn't show template parameters. That has proven to be a show-stopper for us. Is it possible to recover the missing information, or generate it in a different way, using gcc-4.3+? And any chance for userland support for this feature? Thanks, Stefan Zager