Comment # 14 on bug 1000513 from Michael Matz

(In reply to Jiri Slaby from comment #8)
> (In reply to Michael Matz from comment #7)
> > (In reply to Andreas Schwab from comment #6)
> > > In 13.2 or 42.1 the debuginfo contains fully prototyped entries.  Why is
> > > factory different?
> > 
> > I guess gcc-6 makes the difference in that case.  If somebody provides us a 
> > preprocessed file I can analyze this.
> 
> I tried your example from comment #3. I need -O2 to have getenv in dw. gcc-5
> behaves the same.

Oh wow.  It never occured to me to try -g -O2 as producing more debug
info (even if incomplete) than just -g.  Okay I can reproduce, will poke at
this a bit.  Thanks.