------- Comment #4 from rguenther at suse dot de 2009-01-29 21:24 -------
Subject: Re: Gcc accepts invalid code
On Thu, 29 Jan 2009, joseph at codesourcery dot com wrote:
>
>
> ------- Comment #2 from joseph at codesourcery dot com 2009-01-29 20:02
> -------
> Subject: Re: New: Gcc accepts invalid code
>
> On Thu, 29 Jan 2009, hjl dot tools at gmail dot com wrote:
>
> > inline void foo ();
> >
> > int
> > main ()
> > {
> > foo ();
> > return 0;
> > }
> > [...@gnu-6 gcc]$ gcc /tmp/i.i -S
>
> If you use -std=c99 -pedantic-errors you get an error, as expected.
> You're compiling in gnu89 mode.
>
> If you use -std=c99 without -pedantic-errors you get a duplicate warning:
>
> t.c:1: warning: inline function 'foo' declared but never defined
> t.c:1: warning: inline function 'foo' declared but never defined
I think the frontend should, in C89 mode and if just issueing a warning,
set DECL_EXTERNAL properly on the decl.
Richard.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39026
