Review Request 128073: Make Wayland optional

[Bhushan Shah]

> On June 1, 2016, 1:43 p.m., Martin Gräßlin wrote:
> > -2, see also https://bugs.kde.org/show_bug.cgi?id=361954 for explanation why we don't want this.
> 
> Pino Toscano wrote:
>     Nowhere there is discussed (only briefly mentioned) about support with non-Linux platforms; considering libkscreen is a library used by components (and also external ones, like the display configuration in LxQt), then it makes sense to me making it portable.
>     
>     Making wayland mandatory in libkscreen (and also in other modules, like plasma-integration, kwin, kscreenlocker) means killing outright any attempt to make Plasma build on non-Linux platforms.  Please reconsider this, thanks.
> 
> Martin Gräßlin wrote:
>     which non-Linux platforms which we care about don't have Wayland? Before making KWayland a mandatory dependency in Plasma we did check with distro packagers. Everyone was fine with it.
> 
> Pino Toscano wrote:
>     At least to my reading of Wayland sources, to build the libraries you need features like signalfd and timerfd, which are non-POSIX and available only on Linux.
>     
>     Can you please point me to the discussion you had with distro packagers?
> 
> Martin Gräßlin wrote:
>     There are non-linux which have successfully run Weston on a DRM backend. That was in the news a few weeks back, see e.g. http://lists.dragonflybsd.org/pipermail/users/2016-May/249620.html
>     
>     So let's go from "theoretically not possible" to "practically not possible". Where is it not possible to have a Wayland dependency?
>     
>     Concerning the discussion: a quick search showed me https://mail.kde.org/pipermail/kde-distro-packagers/2015-July/000076.html, but there must be an older one already as we use it in plasma-workspace (kscreenlocker) since Plasma 5.2 IIRC. This makes it difficult for me to point you to the discussion as it's really a long time ago.

https://mail.kde.org/pipermail/release-team/2015-July/008725.html


- Bhushan


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On June 1, 2016, 1:40 p.m., Pino Toscano wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://git.reviewboard.kde.org/r/128073/
> -----------------------------------------------------------
> 
> (Updated June 1, 2016, 1:40 p.m.)
> 
> 
> Review request for Plasma, Solid, Daniel Vrátil, Martin Gräßlin, and Sebastian Kügler.
> 
> 
> Repository: libkscreen
> 
> 
> Description
> -------
> 
> Look for KF5Wayland as optional package, not building all the Wayland-related code (backend, additions to tests, DPMS support in kscreen-doctor) if it is not available.
> 
> This allows libkscreen to build again on platforms without Wayland, such as non-Linux or old Linux distros.
> 
> 
> Diffs
> -----
> 
>   CMakeLists.txt 9c834d9500fa0b89764516464bd58e835671977b 
>   autotests/CMakeLists.txt 2c8ee3d2021b1222072d6a1faafaff1b336d27e3 
>   backends/CMakeLists.txt 3563e138454edcc0c874237745123b09077d067c 
>   src/doctor/CMakeLists.txt 7294d88af127a6604bc7e48e16342c93f152de8c 
>   src/doctor/doctor.cpp a156f006212e63c155a6f643929d0a5880275731 
>   tests/CMakeLists.txt 1489d21383e13cd1431a81d48b4a272c28302041 
> 
> Diff: https://git.reviewboard.kde.org/r/128073/diff/
> 
> 
> Testing
> -------
> 
> Builds fine.
> 
> 
> Thanks,
> 
> Pino Toscano
> 
>

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