On Mon, May 16, 2011 at 01:11:10AM +0100, Måns Rullgård wrote:
> Diego Biurrun <[email protected]> writes:
> 
> > On Sun, May 15, 2011 at 11:34:35PM +0100, Måns Rullgård wrote:
> >> Diego Biurrun <[email protected]> writes:
> >> 
> >> > On Sun, May 15, 2011 at 07:21:59PM +0100, Måns Rullgård wrote:
> >> >> Diego Biurrun <[email protected]> writes:
> >> >> >
> >> >> > --- a/libavcodec/fft-internal.h
> >> >> > +++ b/libavcodec/fft-internal.h
> >> >> > @@ -19,6 +19,8 @@
> >> >> >  #ifndef AVCODEC_FFT_INTERNAL_H
> >> >> >  #define AVCODEC_FFT_INTERNAL_H
> >> >> >  
> >> >> > +#include "fft.h"
> >> >> > +
> >> >> >  #if CONFIG_FFT_FLOAT
> >> >> 
> >> >> Are you sure this doesn't break something?  That header is one of those
> >> >> slightly magical ones.
> >> >
> >> > It does not break FATE.  What else do you want me to test for?
> >> 
> >> I want you to read and understand what the file does, not just blindly
> >> run some tests and hope they'd catch whatever might have gone wrong.
> >
> > It is safe.  First, fft-internal uses struct definitions and similar
> > from fft.h, so it implicitly depends on that header.  Second, the only
> > risky part in fft.h is the CONFIG_FFT_FLOAT definition that might conflict
> > with a similar definition elsewhere.
> >
> > However, the definition in fft.h is conditional on CONFIG_FFT_FLOAT
> > being undefined and the only places where fft-internal.h is #included,
> > mdct.c and fft.c, are template files #included from their fixed/float
> > counterparts that set the CONFIG_FFT_FLOAT definition appropriately
> > before anything else.
> >
> > Is that enough to convince you?
> 
> No, but had you pointed out that the only places it is included, fft.h
> is included immediately before, it would have been.

Very well, noted for the future - is that an OK for the patch?

> However, this particular header makes no sense including on its own.
> What is the point in making it appear to work?

I want to add checkheaders (and a few other targets) to FATE, they get
continuously broken otherwise.  But obviously a prerequisite for that
is having the checkheaders target pass in the first place.

> If you want to juggle #include lines, remove the useless ones at the end
> of avutil.h and fix the fallout instead.  That would remove a huge
> number of false dependencies.

I'll create a branch for that, but I cannot promise an ETA.

Diego
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