[FFmpeg-devel] [PATCH 2/3] configure: check and use -Werror=empty-body

[Michael Niedermayer]

On Fri, Apr 04, 2014 at 12:53:55AM +0200, James Darnley wrote:
> On 2014-04-04 00:45, James Darnley wrote:
> > Would have caught the trailing semi-colon in lavu/log.c that broke detection of
> > 256 colour capable terminals.
> > ---
> >  configure |    1 +
> >  1 files changed, 1 insertions(+), 0 deletions(-)
> > 
> > diff --git a/configure b/configure
> > index 46452ee..cb76890 100755
> > --- a/configure
> > +++ b/configure
> > @@ -4776,6 +4776,7 @@ check_cflags -Wundef
> >  check_cflags -Wmissing-prototypes
> >  check_cflags -Wno-pointer-to-int-cast
> >  check_cflags -Wstrict-prototypes
> > +check_cflags -Werror=empty-body
> >  enabled extra_warnings && check_cflags -Winline
> >  
> >  check_disable_warning(){
> > 
> 
> Is it ever not an error?

it could be if the body disappears due to a macro

[...]

-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Asymptotically faster algorithms should always be preferred if you have
asymptotical amounts of data
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