Hi, I have some C++ code that compiles and links fine under gcc 3.2.2 (Red Hat 9). I have just migrated to Fedora Core 5. This code will not build using gcc 4.1 and I am at a lose as to where to begin fixing this. I have recently read about how the C++ ABI was recently changed/finalized and that now gcc follows the standard better. Wonderful. However, knowing this does not really help me resolve the problem at hand--that is, my existing code will not build using gcc 4.1. Is there any migration guide (hopefully with examples) available that specifies where you guys made changes to gcc that will break existing code? Are there any other recourses available to help with migration issues like this? Thank you for any help you can provide. -Andres ---------------------- Andres C. Gonzalez III Agora Labs, Inc. (732) 212-8500 andres@xxxxxxxxxxxxx