On Thu, 26 Nov 2009 17:19:47 +0000, you wrote: >I know if I use gcc, it will define __GNUC__, and no doubt many other things >too. Does anyone know how to get a list of them all? Is there a command I can >execute which will list them? I use 'gcc -dM -E -xc /dev/null' to get all predefines. Philipp