On 12/02/14 01:51, Ulrich Mueller wrote: >>>>>> On Wed, 12 Feb 2014, Samuli Suominen wrote: >> USE="gtk3" is valid only for libraries when it's not easy to >> split/slot as a temporary flag. Applications should simply pick one, >> the latest one that works, since anything else is obviously >> redudant. > I don't see why applications should be treated differently from > libraries. If a program supports more than one toolkit, then the > choice should be left to the user. Nothing redundant there. > > Ulrich
For libraries it's forced, like eg. libcanberra's gtk3 version for GNOME and gtk2 version for Xfce due to direct use of NEEDED, headers, pkg-config etc. But applications is whole different story... The maintainer makes the decision which toolkit is used and best supported. If some application has initial port to gtk3, but still lacks some features the gtk2 version still had, then maintainer makes the smart choice of using the version that has all the features, if the maintainer deems those features important. There is no point in having them in parallel, it only increases the workload, making maintainer do double-testing of the application, not to mention the work it causes later when gtk2 is slated obsolete as gtk1 is now Sometimes I think people have already forgotten the mess we had during the gnome1 removal times with USE="gtk2" :-( - Samuli
