>>>>> On Tue, 20 Jan 2015, Michał Górny wrote: > REQUIRED_USE=" > avcodec? ( ^^ ( ffmpeg libav ) ) > postproc? ( ^^ ( ffmpeg libav ) ) > ffmpeg? ( || ( avcodec postproc ) ) > libav? ( || ( avcodec postproc ) )"
Seriously? You expect users to figure out [1] what combinations of USE flags will work for such an ebuild? There are good reasons why the devmanual [2] advises against such overuse of REQUIRED_USE: | Note: In order to avoid forcing users to micro-manage flags too | much, REQUIRED_USE should be used sparingly. Follow the normal | policy whenever it is possible to do a build that will presumably | suit the user's needs. Ulrich [1] https://en.wikipedia.org/wiki/Zebra_Puzzle [2] http://devmanual.gentoo.org/general-concepts/use-flags/index.html#conflicting-use-flags
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