[MPlayer-users] Compilation problems in rc3 - finale

[Giacomo Comes]

On Fri, Nov 16, 2007 at 05:36:30PM +0100, Reimar Döffinger wrote:
> Hello,
> On Fri, Nov 16, 2007 at 12:19:56PM -0400, Giacomo Comes wrote:
> > On Fri, Nov 16, 2007 at 05:06:47PM +0100, Reimar Döffinger wrote:
> [...]
> > > Well, 2.95 currently needs a small fix to compile at all and probably is
> > > hard to come by unless you use something a bit older, e.g. Debian stable :-)
> > 
> > What about this message that appears in recent build?
> > 
> > + Compiler did not align stack variables. Libavcodec has been miscompiled
> > + and may be very slow or crash. This is not a bug in libavcodec,
> > + but in the compiler. You may try recompiling using gcc >= 4.2.
> > + Do not report crashes to FFmpeg developers.
> > 
> > It means that any gcc version before 4.2 is deprecated?
> 
> Firstly, this is an FFmpeg message. You could just not use any FFmpeg
> codecs :-P.

The message appears during video encoding. Quite hard to encode MPEG1/2
video without FFmpeg :-).

> Secondly, I personally have not experienced problems because of it.

Me either, but the message is there.

> And lastly, you only need gcc 4.2 if you compiled MPlayer against a
> dynamic libavcodec (which you should not do anyway), otherwise
> 3.x or so is _supposed_ to be enough to get rid of it. 

I compile MPlayer against static libavcodec on i386 architecture.

Ciao
Giacomo

> But I admit I
> never found out what exactly are the conditions that causes this message
> (esp. since I 64 bit MPlayer where this problem does not exist).
>