Bug 1851755

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Is there a document explaining what the prefix actually does? If I change it in the openbox-kde-session script to "kf5-", I get a different output from the kbuildsycoca5 command, but the menu in the panel doesn't change. Is that expected?

(In reply to Miroslav Lichvar from comment #2)
> Is there a document explaining what the prefix actually does?

https://specifications.freedesktop.org/menu-spec/latest/ar01s02.html

See also:
$ ls /etc/xdg/menus/*-applications.menu
/etc/xdg/menus/kde4-applications.menu  /etc/xdg/menus/kf5-applications.menu


> If I change it
> in the openbox-kde-session script to "kf5-", I get a different output from
> the kbuildsycoca5 command, but the menu in the panel doesn't change. Is that
> expected?

Changing the value of the variable gives me a different menu (no icons and untranslated entries, see problem above).
I'm using Plasma with default menu and italian language:

$ XDG_MENU_PREFIX=kde4- kbuildsycoca5 --menutest            
kbuildsycoca5 running...
Amministrazione/        firewall-config.desktop
Development/    com.visualstudio.code-oss.desktop
Development/    org.gnome.meld.desktop
Graphics/       org.kde.gwenview.desktop
Graphics/       org.kde.okular.desktop
Internet/       com.skype.Client.desktop
Internet/       chromium-freeworld.desktop
Internet/       firefox.desktop
Multimedia/     org.kde.kamoso.desktop
Multimedia/     vlc.desktop
Office/ libreoffice-writer.desktop
Office/ libreoffice-calc.desktop
Office/ org.kde.okular.desktop
Settingsmenu/   obconf.desktop
Settingsmenu/   systemsettings.desktop
System/ gparted.desktop
System/ org.kde.discover.desktop
System/ org.kde.ksysguard.desktop
System/ org.kde.kwalletmanager5.desktop
System/ org.kde.dolphin.desktop
System/ htop.desktop
System/ org.kde.kinfocenter.desktop
System/ mediawriter.desktop
System/ org.kde.konsole.desktop
Utilities/      com.visualstudio.code-oss.desktop
Utilities/      org.kde.plasma.emojier.desktop
Utilities/      org.gnome.seahorse.Application.desktop
Utilities/      org.kde.kcalc.desktop
Utilities/      org.kde.spectacle.desktop
Utilities/      org.kde.ark.desktop
Utilities/      org.kde.sweeper.desktop
Utilities/      org.kde.kate.desktop
Utilities/      org.kde.kcharselect.desktop

$ XDG_MENU_PREFIX=kf5- kbuildsycoca5 --menutest
kbuildsycoca5 running...
Amministrazione/        firewall-config.desktop
Sviluppo/       org.gnome.meld.desktop
Sviluppo/       com.visualstudio.code-oss.desktop
Grafica/        org.kde.gwenview.desktop
Grafica/        org.kde.okular.desktop
Internet/       firefox.desktop
Internet/       chromium-freeworld.desktop
Internet/       com.skype.Client.desktop
Multimedia/     org.kde.kamoso.desktop
Multimedia/     vlc.desktop
Ufficio/        libreoffice-calc.desktop
Ufficio/        libreoffice-writer.desktop
Ufficio/        org.kde.okular.desktop
Impostazioni/   obconf.desktop
Impostazioni/   systemsettings.desktop
Sistema/        mediawriter.desktop
Sistema/        gparted.desktop
Sistema/        org.kde.kinfocenter.desktop
Sistema/        org.kde.discover.desktop
Sistema/        htop.desktop
Sistema/        org.kde.ksysguard.desktop
Sistema/        org.kde.kwalletmanager5.desktop
Sistema/        org.kde.konsole.desktop
Sistema/        org.kde.dolphin.desktop
Accessori/      org.kde.ark.desktop
Accessori/      org.kde.spectacle.desktop
Accessori/      org.kde.kcharselect.desktop
Accessori/      org.kde.kcalc.desktop
Accessori/      org.kde.sweeper.desktop
Accessori/      org.gnome.seahorse.Application.desktop
Accessori/      org.kde.plasma.emojier.desktop
Accessori/      com.visualstudio.code-oss.desktop
Accessori/      org.kde.kate.desktop

$ rpm -q --whatprovides /etc/xdg/menus/kde4-applications.menu 
kdelibs-4.14.38-20.fc32.x86_64

$ rpm -q --whatprovides /etc/xdg/menus/kf5-applications.menu 
kf5-kservice-5.73.0-1.fc32.x86_64

$ rpm -qi kdelibs
Name        : kdelibs
Epoch       : 6
Version     : 4.14.38
Release     : 20.fc32
Architecture: x86_64
Install Date: dom 28 giu 2020, 12:28:09
Group       : Unspecified
Size        : 48128194
License     : LGPLv2+
Signature   : RSA/SHA256, gio 30 gen 2020, 23:22:00, Key ID 6c13026d12c944d0
Source RPM  : kdelibs-4.14.38-20.fc32.src.rpm
Build Date  : gio 30 gen 2020, 17:32:02
Build Host  : buildvm-14.phx2.fedoraproject.org
Packager    : Fedora Project
Vendor      : Fedora Project
URL         : http://www.kde.org/
Bug URL     : https://bugz.fedoraproject.org/kdelibs
Summary     : KDE Libraries
Description :
Libraries for KDE 4.

NOTE: Description --> Libraries for KDE 4 <--

Ok, thanks for the information. I'm preparing a F33 update.

FEDORA-2020-880fbc10b8 has been submitted as an update to Fedora 33. https://bodhi.fedoraproject.org/updates/FEDORA-2020-880fbc10b8

FEDORA-2020-880fbc10b8 has been pushed to the Fedora 33 testing repository.
In short time you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --advisory=FEDORA-2020-880fbc10b8`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2020-880fbc10b8

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Works for me.

$ rpm -qa openbox\*
openbox-libs-3.6.1-16.fc33.x86_64
openbox-3.6.1-16.fc33.x86_64
openbox-kde-3.6.1-16.fc33.noarch

FEDORA-2020-880fbc10b8 has been pushed to the Fedora 33 stable repository.
If problem still persists, please make note of it in this bug report.