11.08.2015 16:04, Sergey Popov пишет: > 11.08.2015 15:32, Michael Palimaka пишет: >> On 11/08/15 20:17, Sergey Popov wrote: >>> 09.08.2015 23:28, Ulrich Mueller пишет: >>>> I disagree with this. Really, REQUIRED_USE should be used sparingly, >>>> and IMHO the above is not a legitimate usage case for it. >>> >>> So, you prefer to make ugly mess of deps here like i posted before or >>> introduce some really unneded USE-flag like 'gui', 'qt', etc. to make >>> users even more confused? >>> >>> Really, look at man-db ebuild. Especially on berkdb and gdbm USE flags. >>> And dependency string like this: >>> >>> !berkdb? ( !gdbm? ( sys-libs/gdbm ) ) >>> >>> One sentence: "WHAT THE HELL?" >>> >>> Imagine that it would be dozen of flags. Is it fun to mess with deps >>> like this for you? >> >> Shall we ban this too? >> >> ffmpeg? ( >> libav? ( media-video/libav:= ) >> !libav? ( media-video/ffmpeg:0= ) >> ) >> >> >> >> > > No, because ffmpeg here is a feature AND name of concrete realization. > Not ideal case as i would said, but it is acceptable. > > You want to migrate to such decision? Like: > > qt? ( > qt5? ( dev-lang/qtcore:5 ) > !qt5? ( dev-lang/qtcore:4 ) > ) > > Fine by me, if you would ask. > > As i said one message earlier: Something like $(qt_use_default qtgui 5) > > which will generate something like this: > > qt4? ( > qt5? ( dev-lang/qtcore:5 ) > !qt5? ( dev-lang/qtcore:4 ) > ) > !qt5? ( !qt4? ( dev-lang/qtcore:5 ) ) > > would help too. > > If you are doing complicated things(and please, do not tell me that > provided dependency string is simple and understandable by every > developer in just a second without wanting to "improve" or "simplify" > it) - do it through eclass. And provide nice API. > > Thanks for listening and sorry if i was too harsh >
Oops, sorry dev-qt/qtgui inside the brackets, of course. -- Best regards, Sergey Popov Gentoo developer Gentoo Desktop Effects project lead Gentoo Quality Assurance project lead Gentoo Proxy maintainers project lead
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