Bug#619530: ffmpeg: backport of 4:0.6.1-5 from unstable produces WARNING: library configuration mismatch

Fabian Greffrath fabian at greffrath.com
Mon Mar 28 11:09:01 UTC 2011

Am 28.03.2011 12:53, schrieb Fabian Greffrath:
> I still don't understand how this warning could occur on your system
> in the first place if all libraries are installed from the same
> source, i.e. unstable. You really didn't rebuild anything yourself?

Sorry, I was wrong! I see this in unstable as well, I just didn't find 
the warning itself in the very verbose output of the library 
configurations (mis-interpreted this as a normal output).

It seems the culprit is that the shared library build is configured 
with additional "--disable-ffmpeg --disable-ffplay" flags, whereas the 
ffmpeg frontend obviously isn't. These two flags are common to all 
arch-optimized library builds, so it is quite expected that the 
frontend and the shared library (that the dynamic linker chose to link 
against) differ in their configuration. It is, however, IMHO pointless 
to explicitely point this fact out whenever the frontend is run, so I 
agree with Reinhard that this "feature" should be disabled on systems 
which allow for combinations of regular frontend and optimized shared 

  - Fabian

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