Александр (12022-05-31): > I analyzed problem a little bit. Only gcc/clang allows to use this trick. > Msvc compiler forbidens such code (even with different enabled > optimizations like remove unused references, whole program optimization > etc) I have made patch, which uses preprocessor #if directive instead. If > it will be helpful, I can share the patch. FATE shows FFmpeg builds fine on several MSVC instances, so no, we do not need such a patch at this time. I have asked you to show on ffmpeg-users the exact thing you are attempting to do, you have neglected to do that. It is obvious to me that you are trying to tweak the build process in a way that is not supported: stop. > вт, 31 мая 2022 г. в 17:24, Andreas Rheinhardt < > andreas.rheinhardt@outlook.com>: Top-posting is forbidden on all FFmpeg mailing-lists. If you do not know what it means look it up. You are likely to receive no useful reply if you continue. Regards, -- Nicolas George