libkdcraw does not build against libraw-0.19.0

[jjstickel (Jonathan Stickel)]

Recent update to libraw-0.19.0 breaks libkdcraw. Log attached. FYI, another distro bug report with perhaps some relevant information is at ​https://bugs.gentoo.org/659860.

[jwhowse4]

I have encountered exactly the same problem.

[NicosPavlov]

Unfortunately, as indicated in the link you provided, there have been significant changes in libraw's API in version 0.19, that are not compatible with the rather old libkdcraw version we have, based on KDE4.

The changes in libkdcraw to use the new API were performed on version 18.08.0, which is already based on KF5, so that porting back the changes would probably be quite difficult.

[mexon (Matthew Exon)]

Is it possible to revert libraw to something < 18.08.0?

I'm trying to install digikam, which requires libkdcraw.

[NicosPavlov]

it is indeed possible to install older ports, as described in wiki:howto/InstallingOlderPort.

You should install libraw 0.18.12, which still possesses the older API.

[mexon (Matthew Exon)]

Ah great, 0.18.12 installed no problem. Thanks for answering the newbie question!

Digikam still doesn't work, but I'll file a separate bug for that.

[RJVB (René Bertin)]

Note that there's an official installer for digiKam's current version: ​https://www.digikam.org/download/

[ryandesign (Ryan Carsten Schmidt)]

Has duplicate #57567.

[mexon (Matthew Exon)]

@RJVB - uh... somehow I didn't notice that 🤣

I think I might actually have been trying and failing to get digikam working under macports for so long that the native version just wasn't working when I started, and I've been struggling this way ever since.

But yeah, the native version works great. Problem solved!

[AndreaCallia (Andrea Callia D'Iddio)]

Any news about this? I wanted to report that, because of such issues, the following ports cannot be built as well.

• gwenview
• kdegraphics4

Moreover, since kdegraphics4 cannot be built, then Okular cannot open PDF files.

[jjstickel (Jonathan Stickel)]

Replying to AndreaCallia:

Any news about this? I wanted to report that, because of such issues, the following ports cannot be built as well.

• gwenview
• kdegraphics4

Moreover, since kdegraphics4 cannot be built, then Okular cannot open PDF files.

I've come to the conclusion that KDE4 is dead. Unfortunately, KF5 on mac is really a mess. So it looks like we need to find alternatives to our favorite KDE apps and move on.

[NicosPavlov]

Has duplicate #58092.

[NicosPavlov]

Point taken for gwenview. I should indeed look at that one, which is a separate problem.

It is true that okular does not support PDF anymore, but that is not related. Kdegraphics4 is just a stub port. PDF support in Okular is based on Poppler, and qt4 support has been dropped in poppler quite some time ago.

[mascguy (Christopher Nielsen)]

Since these failures are blocking builds of downstream ports, this needs to be revisited.

Is there no straightforward solution after all of this time...?

[mascguy (Christopher Nielsen)]

Nicolas, I'm willing to assist with updating this port - as well as other KDE-related components - even if a major upgrade to the core KDE libs/runtime is needed.

That may constitute a significant amount of work, but that's what I'm here for!

[NicosPavlov]

Thanks, any help would be appreciated. I am patching up KDE4 ports when it is easy, but not otherwise. As KDE4 has be made deprecated a long time ago, I am not sure spending time on fixing core issues in it is worth it. René did a very substantial job in porting KF5 in Macports, but I lack time and knowledge of KF5 to commit it and take responsibility for its maintenance. It might however be better to discuss this on the mailing list instead of a ticket.