ubuntu 20.04 is at 3.16.3. openSUSE Leap 15.3 at 3.17.0
Not related to the issue here, but fyi the builds for *ubuntu 22.04 works fine also on newer 22.10 which is not present yet in obs.
I’ve added Fedora 37.
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Great news. Thanks a lot.!!!
Thank you very much 
Ubuntu 22.10 has been added to.
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@asn , @darix , anyone, I just confirmed to myself that I can’t build DT any more on Ubuntu 20.04 LTS due to the cmake 3.18 version.
This is a real pain for people like me for whom upgrading the OS is time consuming and a risk and utterly unwelcome. Also Ubuntu 22 is relatively new and probably still settling down.
If I understand correctly, cmake is the compiler and some tools. Is it really necessary to go to a new version for rawspeed? I’m guessing the rest of DT can still be built using cmake 3.16.3.
Is it possible we can ask the relevant devs for a rawspeed that still builds with 3.16.3?
relatively new … 22.04 is over 6 months out … that is not new anymore. also it was not us who changed the code. so not sure why you address us.
The LTS is from ubuntu, not from anyone who happens to make an application.
If you want to ask, then ask. Don’t ask to ask and don’t ask someone else to do it for you.
Push come to shove, you can build a flatpak, appimage, or maybe a snap.
I was asking here because this affects DT users here, and was hoping to get some feel for what might be possible. There’s nothing necessarily wrong with asking to ask, it can also be called discussion.
I’ve created an Issue - The change to needing cmake 3.18 prevents building darktable under Ubuntu 20.04 · Issue #400 · darktable-org/rawspeed · GitHub
Is that a suitable place?
Yes.
Btw, you can equally ask Ubuntu why they didn’t backport at least 3.18.4 from impish to focal-updates/focal-backports since Debian 10 has it backported already, and so does Debian 11…
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I just upgraded from Linux Mint 20.3 to 21 yesterday. Very smooth via mintupgrade. Darktable master via OBS just works.
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Thanks, I plan to do it this weekend.
seems this change made it into 4.2.0
Yep, just did the same. Fairly smooth. It knocked Darktable back to version 3.8, but I immediately upgraded it to 4.2 from the OBS. Working now.
Only annoying thing is high cpu usage from an indexing daemon called tracker3 that they installed. If it doesn’t settle soon it will get ripped out.
I’m still using ubuntu 20.04 with cmake 3.16.1 and I can compile just fine (I have one in progress right now). I get deprecation warnings about the C compiler being version 9.4.0, but that is the only issue.
I’m on 22.10, the build and the OS in general are OK. OpenCL works with Nvidia. I use KDE.
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rawspeed requires/required cmake 3.18 so we dropped the distro. And this is still the case in HEAD of the 4.2.x branch:
src/external/rawspeed/CMakeLists.txt
1:cmake_minimum_required(VERSION 3.18)
Please check if it really still builds if you drop your build directory and run cmake from scratch.
Never mind, I forgot that I had built and installed cmake version 3.22 in /usr/local. I just queried the installed and 3.16.1 showed up so I assumed that was the version I was using. Sorry for the noise.