[MPlayer-users] Generic ppc compilation of mplayer on iMac G4

[Guillaume POIRIER]

Hello,

On Sat, Jun 21, 2008 at 5:27 PM, Laurent ETTOUATI
<laurent.ettouati at free.fr> wrote:
> Le 14/06/08 20:27, « Laurent ETTOUATI » <laurent.ettouati at free.fr> a écrit :
>
>> Until now I compiled without problem mplayer from svn (SVN-r26320 was the
>> last one) on my iMac G4 with ./configure --disable-x11 --disable-gl
>> --disable-mencoder --disable-freetype --disable-fontconfig
>> I got "ppc" with "lipo -info my_mplayer_build"
>>
>> Recently, I compiled successfully from svn-r27056. However, I got "ppc7450"
>> with lipo.
>>
> ....
>> Is it possible to compile a generic ppc build now and how to do that ??
>>
>> Laurent
>>
>
> As my first post was not answered, I would reformulate it.
> Is a G4-ppc7450 mplayer build could run on a G5 or G3 platform? Obviously, I
> am unable to check.

In theory, you can just compile your MPlayer binary with standard
configure switches, and it will work everywhere since all AltiVec code
is enabled in run-time only if the underlying CPU support it.
In practice, the compiler may be smart enough to add some altivec code
all by itself where it feels like it would be profitable. This would
lead to runtime crashes on a G3.
On a G5, a binary build for G4 would obviously work since G5 ensures
backward compability.


Guillaume

-- 
Frank Lloyd Wright  - "TV is chewing gum for the eyes."