Fatal error in build of 4.6.1 - I don't understand how to fix

[kmilos]

@rvietor

Also posting the question on the mailing list means that effort gets duplicated (personally, if I see someone posing a question both here and in the mailing list, I tend to ignore it/them…).

More than duplicated actually

[g-man]

Are you interested in building darktable from source or using darktable 4.6.1? There are likely easier options if you just want to use it. For your case on Mint 21.3 (Ubuntu 22.04) I would suggest OBS as described in www.darktable.org

echo 'deb http://download.opensuse.org/repositories/graphics:/darktable/xUbuntu_22.04/ /' | sudo tee /etc/apt/sources.list.d/graphics:darktable.list
curl -fsSL https://download.opensuse.org/repositories/graphics:darktable/xUbuntu_22.04/Release.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/graphics_darktable.gpg > /dev/null
sudo apt update
sudo apt install darktable

[LateJunction (Anthony A Hamilton)]

@kmilos

This is your problem all along, as established at the start. Still using manually installed Lensfun 0.3.95 files.

Thanks for such a clear explanation - sorry that I didn’t fully appreciate the implications of your earlier comment.

In my defence, I have no idea of how this file got installed - its creation date is 1 Jan 24 - and I am absolutely sure that I have done nothing with lensfun this year - or indeed in 2023 or 2022 since I was having no problem with that functionality, even in compiling dt multiple times last year. I also had no idea that this file is part of lensfun 0.3.95 but not part of 0.3.2-6 - how could I know that, given my level of expertise? Having deleted 0.3.95. which was all in one folder in my /home directory, I considered that level of lensfun deleted - as I claimed.

I have to assume it was installed as part of some other package- like GIMP or RawTherapee.

Assuming that I can delete it without impact on other applications, I will try a build after having done so.

[LateJunction (Anthony A Hamilton)]

@rvietor

That “/usr/local/include” worries me, have you build the lensfun library yourself?
Normally, header files downloaded from distribution repositories are stored under /user/include…
And your package manager will not see anything installed in /usr/local

And please, stick to one communication channel when discussing a problem.

No I have never tried to build it myself: my first use of lensfun was with my first attempts to use dt - back in 2019 I think. At that time I never tried compiling anything in Linux because of the well established difficulties of doing so, and having failed in every attempt since about 1995, in my first introduction to Red Hat Linux.

The fact of APT not seeing this header file in /usr/local explains why I missed it when checking to be sure I had deleted lensfun 0.3.95

I very much take your point about one communication channel: I resorted to using the mailing list as I had the feeling that I had received as much help as I could reasonbaly expect from this channel, without annoying people by re-posting on the topic.

[LateJunction (Anthony A Hamilton)]

@g-man

For your case on Mint 21.3 (Ubuntu 22.04) I would suggest OBS as described in www.darktable.org

Thanks for the suggestion. I was trying to build for myself because the OBS offers only version 4.6.0-1.1, which I already have, at this time ,and not the just announced 4.6.1.

[LateJunction (Anthony A Hamilton)]

@rvietor

May I suggest you drop the git and use the published source package ?

Having now removed the offending lensfun header file, the published source package compiles without error, producing a version of darktable which will not run: it posts a message:
“0.0700 [rawspeed] rawspeed::Camera(const pugi::xml_node&)::<lambda()>, line 75: Attribute ‘supported’ has unknown value.”

[kmilos]

@LateJunction

line 75: Attribute ‘supported’ has unknown value.”

Something is still not quite right with your source tree (or how you install/run after building) - this is on line 79 in 4.6.1 source code (darktable-4.6.1.tar.xz).

[Roland_Rainer]

I’m not a dev, but also compile dt on my own (Ubuntu). And I had the very same error. After trying:

git pull --recurse-submodules=yes

everything compiled fine for me.

[rvietor]

Please read the rest of the thread… OP is now having a problem with a version compiled from a downloaded tarball, not a Git clone, so any git commands are irrelevant in this situation.

[LateJunction (Anthony A Hamilton)]

At the risk of further irritating somebody who has given me excellent advice which I didn’t understand, I should now tell you after discovering and removing other liblensfun files in /usr/local/lib, dt 4.6.1 now builds and runs without problem.

All I can say is “defecation!”. Even after 5 non-stop days and 14 build attempts, this (expletive deleted) liblensfun version 0.3.95 was still causing me problems; ignoring your advice didn’t help - but thank you anyway.

[kmilos]

Good! It’s the only way to learn and get the experience I’m afraid!

[LateJunction (Anthony A Hamilton)]

I think you might enjoy another example of ‘I told you so’ in the last update I just made to my thread ‘rt build fails with failure to find lensfun.h’ over in the rawtherapee category. And yes, you certainly told me so!