[PATCH/RFA] Add -CC option to cpplib to save comments in macros

[Neil Booth]

Jason R Thorpe wrote:-

> Back to an old topic...
> 
> After the last time I proposed this patch, Neil and I hashed out how
> this should actually work, and the attached patch is the result of
> the discussion we had, updated for the current GCC trunk.
> 
> To remind everyone what this is about ... I have added a -CC option
> to the preprocessor that is like -C, but also preserves comments in
> macros when they're expanded and copied into the output file.  This
> is necessary in order to support lint(1).

I'd like this to do something sensible for C++ options; I don't think
your patch currently does?

Do

#/**/define foo

and

#define/**/x

and

#define f(x /**/, y)

etc. work, particularly with -pedantic?

b.t.w. I'm away for a week starting tomorrow.

Neil.