Author: Ian Lance Taylor Date: To: gcc Subject: Re: Feature request - a macro defined for GCC
Vincent Lefevre <vincent+gcc@???> writes:
>> But that in turn does not matter, as if any non-gcc compiler *did* use
>> the gcc preprocessor, it would do so via gcc -E. In gcc, the
>> preprocessor is not a separate program.
>
> But in any case, there's a separate preprocessor: cpp. And perhaps cpp
> shouldn't define __GNUC__.
You're right, there is a program which appears to be a separate
preprocessor. In actual fact, that program is just gcc under a
different name.
I think it would be reasonable to argue that that program should not
define __GNUC__ by default. I don't actually know which choice people
would find more surprising. And unfortunately I also don't know how
to find out.
