Hello. In the documentation, the command line optionoverview (http://gcc.gnu.org/onlinedocs/gcc-4.1.2/gcc/Option-Summary.html#Option-Summ ary) shows a command line option for ARM: -mapcs-stack-check. However, in the detailed documentation for the ARM options (http://gcc.gnu.org/onlinedocs/gcc-4.1.2/gcc/ARM-Options.html#ARM-Options), I cannot find a description for this option. Does this option actually exist, and how does it work? I found an old post to the bugs mailing list where a Richard Earnshaw stated that the option was recognised by gcc, but does not work. It was suggested that the option be removed from the documentation until it was implemented. I have compiled my code with it enabled using gcc 4.2.1, and it adds a few bytes to the size of my binary. Thanks, Bruce Sutherland