[Bug debug/97989] -g3 somehow breaks -E

[stsp at users dot sourceforge.net]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97989

--- Comment #20 from Stas Sergeev <stsp at users dot sourceforge.net> ---
Ah, makes sense, thank you.
I was always wondering why under clang I
need to do "-fdebug-macro" for that (which
makes problems for gcc as being an unknown option).

But "clang -g3 -fdebug-macro -E -Wp,-P - </dev/null"
still doesn't produce anything interesting,
so I wonder...