Re: FFmpeg-8.0 Warning

On 9/23/25 1:45 PM, Rahul Chandra ([email protected] via blfs-dev 
Mailing List) wrote:
> We can actually do more then just that. Because Firefox only links to 
> ffmpeg at runtime, you can actually keep both 8.0 and 7.1.1 installed 
> (what I've been doing for the last week). You essentially just have to 
> keep all the .so files except the ones that should link to the latest 
> version (i.e ending in just .so and not .so.58). I've been doing this 
> for the last week and firefox works great for me and packages are 
> still linking to ffmpeg 8.0 at build time. Something similar to this: 
> https://gitlab.archlinux.org/archlinux/packaging/packages/ffmpeg4.4 

I would say this is the best approach. Firefox-140 only needs the 
ffmpeg-7.1 libs and that's easy to do. Do a normal build of ffmpeg-7 but 
only install the libs
:

   make DESTDIR=dest install
as root:
   for lib in dest/usr/lib/*; do
     if [[ $lib == *.so ]]; then
       ln -srf -- dest/usr/lib/"$(readlink "$lib")" "$lib"
     elif [[ ! -d $lib ]]; then
       mv "$lib" /usr/lib
     fi
   done

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