Hi, On Sat, Nov 12, 2022 at 1:57 PM Nomis101 <nomis...@web.de> wrote:
> Hi.If building FFmpeg, configure does set a value for mstack-alignment, > for example on macOS > -mstack-alignment=16. On HandBrake we found there is an issue with current > Clang in Xcode about > conflicting 'override-stack-alignment' values if we build with ThinLTO. > > "ld: linking module flags 'override-stack-alignment': IDs have conflicting > values" > > I found out why this is. x264 does set -mstack-alignment=64 in configure, > FFmpeg does set > -mstack-alignment=16 and this seems to be a conflict when linking. If I > modify both configure files > and remove the mstack-alignment part, then the build does finish with no > error. > > And here comes my questions. I was wondering, about the technical reason > why FFmpeg does set > mstack-alignment? And if it would be safe to disable it in case FFmpeg is > compiled with ThinLTO (for > HandBrake)? > It can safely be set to the higher of the two values, it has the same meaning. Alignment of 64 implies alignment of 16. Ronald _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
