[FFmpeg-devel] [PATCH]Error out if libcdio-paranoia is not found in configure

Clément Bœsch ubitux at gmail.com
Sat Jun 1 17:47:52 CEST 2013

On Sat, Jun 01, 2013 at 03:31:05PM +0000, Carl Eugen Hoyos wrote:
> Clément Bœsch <ubitux <at> gmail.com> writes:
> > On Sat, Jun 01, 2013 at 02:21:01PM +0000, Carl Eugen Hoyos wrote:
> > > Clément Bœsch <ubitux <at> gmail.com> writes:
> > > 
> > > > > +    die "ERROR: libcdio-paranoia not found"
> > > > >  fi
> > > > 
> > > > Maybe just "require_pkg_config libcdio_paranoia"?
> I am actually against this (see below).
> > > On second thought:
> > > Does libcdio require pkg_config?
> > 
> > I don't know if any project actually "requires" 
> > pkg-config, but it seems to be distributed with the 
> > necessary .pc files. And since solving your problem 
> > is actually the purpose of pkg-config, I thought it 
> > was the appropriate to use it.
> I believe we should try hard to avoid using it, 
> especially in this case when nobody complained 
> that the library wasn't found (but that 
> configure is broken).

I think I missed the point of your patch (the line split you introduced
made me think you were adding the second check while it was already

But now, I wonder about a few things; first, do we want auto-detection?
(it's not indicated in the help). If it's the case, then it's in the
correct place, but looks like it has the wrong behaviour: it should be
auto-disabled and not error out, just like the others check around IMO.
OTOH, if it's not supposed to be auto-detected, why isn't it with the
other libraries checks below, where they error out?

I believe we should consider clarifying all this stuff.

About pkg-config, I understand you don't want to change that in this
commit, it was obviously unrelated. Though, I think that's a more correct
thing to do.

> But otoh, if it works for you, I of course cannot 
> object.

I didn't test anything.

Clément B.
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