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From: Matt Turner <mattst88@gentoo.org>
Date: Fri, 20 Jul 2018 00:37:17 -0700
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Subject: Re: [gentoo-dev] Adding USE=udev to linux profiles
To: gentoo development <gentoo-dev@lists.gentoo.org>
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On Thu, Jul 19, 2018 at 3:00 PM, Michael Orlitzky <mjo@gentoo.org> wrote:
> On 07/19/2018 05:51 PM, Ben Kohler wrote:
>> Hello,
>>
>> I'd like to propose adding USE=udev to our linux profiles (in
>> profiles/default/linux/make.defaults probably). This flag is already
>> enabled on desktop profiles but it also affects quite a few packages
>> used on non-desktop linux systems.
>>
>> ...
>>
>> Any objections to this idea?
>>
>
> Please add defaults per-package, only where they make sense. Enabling
> flags globally creates a huge headache for people that want them off.
>
> If I want to undo your new flag, I have to set USE="-udev" globally, and
> that clobbers any important per-package defaults that maintainers have set.
I understand the concern at least in theory. But can you please give
me a concrete example of a package where you don't want USE=udev and
another example of a package where you do?
Grepping the tree, I see the following packages pulled in with
USE=udev predominantly:
virtual/libudev
virtual/libgudev
virtual/udev
A few others have some additional dependencies enabled with USE=udev:
app-emulation/libvirt: x11-libs/libpciaccess
dev-qt/qtgui/qtgui: sys-kernel/linux-headers
gnome-base/gnome-desktop: sys-apps/hwids
media-gfx/iscan-data: dev-libs/libxslt, media-gfx/sane-backends
sys-auth/consolekit: x11-libs/libdrm
sys-fs/dosfstools: virtual/pkgconfig
What dependency are you trying to avoid? Or is it just a design issue?