[Bf-committers] More OS X Compile Notes

[John K. Walton]

On Thu, 3 Jul 2003, Hans Lambermont wrote:

> Douglas Bischoff wrote:
> 
> > Also, currently a number of bad command line options are being 
> > specified, to wit:
> > 
> > >cc1plus: warning: ignoring command line option '-Wbad-function-cast'
> > >cc1plus: warning: ignoring command line option '-Wmissing-declarations'
> > >cc1plus: warning: ignoring command line option '-Wnested-externs'
> > 
> > My checking of the gcc man pages suggests that the first and last 
> > options (bad-function-cast and nested-externs) are C options ONLY. Why 
> > are they being listed in nan_warn.mk as c++ warning definitions? Should 
> > those be removed?
> 
> Might be my lazyness, though I doubt that :-P
> 
> My gcc (2.95.4) man page says nothing special about -Wnested-externs or
> -Wmissing-declarations.  being C-only (it does tell C++ only for fi.
> -Wenum-clash, which is not present in nan_warn.mk)
> 
> -Wbad-function-cast doesn't exist in my manpage (anymore ?) I'll check
> tomorrow with my printed version (of 2.95.2 or 3 I think).
> 
> I think we suffer from moving gcc warning options targets across
> different gcc versions.
> 
> > Not sure why missing-declarations is failing.
> 
> Which gcc version are you using ?
> 
> > There are a large number of warnings about old style function casts... 
> > I see that there is a compiler option to ignore those, too... should it 
> > be included?
> 
> That's a matter of taste; I'd say: clean up all the old style stuff,
> unless some other compiler that we use (IRIX anyone ?) *needs* it.


IRIX compiler doesn't use gcc options. I can try to investigate
if the subject of 'it' was more specific...
 
> Hans
>