Re: GCC predefinitions

[Andris Pavenis <pavenis at latnet dot lv>]

On Thursday 22 February 2001 00:53, Stephen Smith wrote:
> How can I get gcc to dump the predefinitions.  For instance, how can I see
> that __GNUC__ is or is not defined and if it it what value it has.
>

Here is example (with output I'm getting under Linux):

bash-2.04$ gcc -E -dM -x c /dev/null
#define __linux__ 1
#define linux 1
#define __i386__ 1
#define __i386 1
#define __GNUC_MINOR__ 95
#define i386 1
#define __unix 1
#define __unix__ 1
#define __GNUC__ 2
#define __linux 1
#define __ELF__ 1
#define unix 1
bash-2.04$ gcc -E -dM -x c++ /dev/null
#define __linux__ 1
#define __EXCEPTIONS 1
#define linux 1
#define __i386__ 1
#define __i386 1
#define __cplusplus 1
#define __GNUC_MINOR__ 95
#define i386 1
#define __unix 1
#define __unix__ 1
#define __GNUC__ 2
#define __GNUG__ 2
#define __linux 1
#define __ELF__ 1
#define unix 1
bash-2.04$

------
Want more information?  See the CrossGCC FAQ, http://www.objsw.com/CrossGCC/
Want to unsubscribe? Send a note to crossgcc-unsubscribe@sourceware.cygnus.com