On Thu, Feb 05, 2015 at 10:33:38PM +0100, wm4 wrote: > On Thu, 5 Feb 2015 22:11:22 +0100 > Clément Bœsch <u...@pkh.me> wrote: > > > On Thu, Feb 05, 2015 at 04:55:37PM +0100, Nicolas George wrote: > > > Le sextidi 16 pluviôse, an CCXXIII, Clement Boesch a écrit : > > > > Linux is not only used by desktop. Debian (for example) might want to > > > > provide a ffmpeg-nox11 (just like vim-nox11), > > > > > > Well, that means they have to put --disable-libxcb when building > > > ffmpeg-nox > > > instead of having to out --enable-libxcb when building ffmpeg-x. Same > > > difference. > > > > > > (IMHO, they should be specifying both anyways: never rely on defaults and > > > you never have to worry that defaults may change.) > > > > > > As long as both the enable and disable explicit option work, the default > > > value does not matter much. And in this particular case, considering xcb > > > like a system library seems more consistent. > > > > > > > So after each release, packagers need to check the configure and make sure > > there aren't new libraries that will randomly be linked to, and add new > > flag to make sure it's disabled? They will miss some... Or are you > > suggesting them to use --disable-everything and add every internal > > codec/format/filter/protocol/...? (There is no --disable-every-external > > AFAIK). > > > > Packagers don't want to pull new random (huge) dependencies. That means > > they enable just what they need, and they add the necessary dependencies > > according to the demand. > > > > That is the original reason we don't auto-enable external libraries. > > libxcb is not more a "system" lib than libx264 is. > > > > > Personally, I would like that all libraries support auto-detection, with a > > > "--auto-all" option to configure to enable it for everything. > > > > That's fine with me as well, but we should stick with the non auto-detect > > behaviour by default. Or in the worst case, allow a > > --disable-every-external or something like this. > > > > And why is vaapi considered a system lib?
I'm for disabling it by default as well. -- Clément B.
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