On 1/25/06, Jim Stapleton <stapleton.41@xxxxxxxxx> wrote: > I was looking through the GCC documentation trying to see what macros > I could find that were automatically defined, but I couldn't find an > comprehensive list of all of them, I could only find some to fit some > situations. Not sure whether this will help you, but the following command dumps all macros predefined by GCC: $ gcc -E -dM -xc /dev/null You might also want to check this website: predef.sourceforge.net Bye.