Hi, I developed some C code that makes use of the 'cleanup' attribute: I tested it with gcc 4.3.2 on an x86 based processor running in 32 bit mode, and it works great. I am now told that such code should also compile using gcc 3.4.3 targeting a PowerPC processor running either in 32 or 64 bit mode: would such combination work? If not, what would be the oldest version of the compiler that does reliably support the cleanup attribute targeting PowerPC processors? Would I need to enable/disable any special compiler flags for better results? Thanks a lot for all the information you can provide me. One last question: what is the oldest version of gcc that reliably supports the no-attributes flag (I noticed that gcc 3.4.3 doesn't recognize it)? Regards, Chris