On Wed, Sep 19, 2012 at 1:41 AM, Mason <mpeg.blue@xxxxxxx> wrote: > > Is it even supported to compile some source files with gcc 4.3.2, and > some with gcc 4.6.3, when some source files are written in C++? Is the > C++ ABI stable over several releases? Yes, this is supported. The C++ ABI is stable. Well, it's stable except that apparently the CodeSourcery toolchain has a new format for unwind info, and the new format is not compatible with the old format. But I don't know anything about the new format. Ian