On Thu, Oct 27, 2022 at 04:22:11PM -0400, Tom Kacvinsky via Gcc-help wrote:
> I am working on an issue that involves our tool depending on the
> preprocessed output from gcc -E.
> # 4 "test.c" 3 4
>
> 0
>
> # 4 "test.c"
>
> ;
>
> }
>
>
> Notice how when the macro EXIT_SUCCESS is expanded, we get several lines
> around the 0?
I don't get any of the blank lines you have though?
> This is happening for us with GCC 8.3. But using something as early as
> 4.8.5 (yeah, I know,
>
> bad idea), we get this:
>
>
> int main() {
>
> return 0;
>
> }
>
>
> I am pretty sure this is an intentional change. What I'd like to know is
> if there is a way of
>
> reverting back to the former behavior? I looked at
-P will do what you want (as a side effect though). -traditional also
works (and that one is more intentional). Neither of those does *only*
this, but either may be usable for your purposes.
Have fun,
Segher
