On Thu, 7 Sept 2023 at 15:12, Derek Buitenhuis <derek.buitenh...@gmail.com> wrote: > > On 9/6/2023 6:31 PM, Kacper Michajlow wrote: > > What would be a downside of preferring CXX always if it exists? > > FFmpeg runs in a multitude of environments with a multitude of portability > requirements. Needlessly linking a C++ runtime is not OK.
This does not answer my question. Let me rephrase. Do we know the case where using C++ compiler driver rather than C would degrade the quality of the resulting build? Using C++ driver would indeed append the (correct) runtime library to the linker command, but if nothing references any symbols from it it would not be linked. It is also why the current way of forcing `lstdc++` kinda works, because it is silently ignored when not needed. Implementing logic to use C++ only when necessary is possible, but I'm not a big fan of such automation. And in practice not sure how well it would work, because it would require trying to link twice every dependency in configure. Also the fact that "FFmpeg runs in a multitude of environment" is precisely why I really don't like the current unconditional including `-lstdc++`. > Further, we do not generally automatically change build output based on > what is available on the system. I must kindly disagree. configure has 35 components marked as `[autodetect]` and they are certainly changing the build output based on what's available on the system. Whether it is intended or historical behaviour is another question. But I'm also not proposing to auto detect anything, quite the opposite with this silly manual list of libraries. - Kacper _______________________________________________ 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".
