gcc: cpp pre-defined variables

Chuck Swiger cswiger at mac.com
Wed Aug 2 13:42:24 UTC 2006

Lorin Lund wrote:
> How can I find all the variables that are pre-defined in the pre-processor.
> Do these come from a configuration file? Or are the compiled in to cpp when
> it is ported to a platform?

Something like:

	touch test.h; cpp -dM test.h

...will show you all of the predefined macros.  These are compiled into the 
compiler when the toolchain is built.


More information about the freebsd-questions mailing list