Vamos atualizar o KDE 5_15.10 no Slackware, que é composto pelo KDE Frameworks 5.15.0, Plasma 5.4.2 e aplicações para o KDE "Applications" 15.08.2.

Atualizar do KDE 4.2 para o atual 5.15.10 (hoje!) deveria ser muito simples.

KDE-5_15.10 deve ser instalado apenas em uma instalação atualizada current e ela irá substituir qualquer versão do KDE 4 que você tenha instalado! E lá vamos nós.... O que temos de novo nesse update?

• Two updated "deps" packages: qca-qt5 and wayland.
• A completely new subset of "deps" packages, contained in their own "telepathy" subdirectory, is paving the way for KDE Telepathy (see below): libotr, libnice, farstream, libaccounts-glib, libaccounts-qt5, signon, signon-plugin-oauth2, signon-ui, libsignon-glib, telepathy-glib, telepathy-farstream, telepathy-haze, telepathy-gabble, telepathy-qt5, telepathy-logger, telepathy-logger-qt5, telepathy-mission-control and telepathy-accounts-signon.
• Frameworks 5.15.0 is an enhancement release, no new Framework was added. See https://www.kde.org/announcements/kde-frameworks-5.15.0.php
• Plasma 5.4.2 is a bugfix release, you can read the details in https://www.kde.org/announcements/plasma-5.4.2.php. Worth mentioning is that I have finally enabled the 'plasma-mediacenter' package.
• In plasma-extra you will find a rebuilt sddm-qt5 package which fixes the broken progress bar on startup of the Plasma Desktop session. Also you will find a new package 'xembed-sni-proxy' which docks into the Plasma 5 system tray and provided a legacy XEmbed tray for those applications that need it. It is therefore no longer necessary to use a program like trayer-srg or stalonetray to make these XEmbed tray-icons visible.
• Applications 15.08.2 is a bugfix release as well. But for my Slackware package set, the important change is that I have added all the KDE Telepathy packages that previously stayed un-built. You'll find a new systray icon waiting for you to configure your IM accounts. Only the voice & video GUI is still missing, the KDE Telepathy developers are still looking for someone knowledgeable to port the old KDE 4 version to Frameworks 5.

Outros pontos interessantes que não foram mudadas desde versões anteriores:

• ConsoleKit2 replaces Slackware's ConsoleKit. Now we have something again which is properly maintained and well on its way to implementing the necessary parts of the systemd-logind API (so that we can ignore systemd).
• kde/kde4-extragear packages should be taken from slackware-current (calligra, k3b, kaudiocreator, kplayer, kwebkitpart, oxygen-gtk2, kdevplatform, kdevelop-pg-qt, kdevelop, kdev-python, kdevelop-php, kdevelop-php-docs, skanlite, kio-mtp, libktorrent, ktorrent, partitionmanager)
• Note that I did not compile KDEnlive which ships with Applications. It needs a lot of attention before I can build this (ffmpeg amd more is required).
• katepart4 was added so that kdevelop works again
• konsolepart4 was added to be able to use an embedded konsole in dolphin
• kdeconnect4 was added; this stripped-down version of the KDE4 based kdeconnect-kde allows you to access your Android device with the (also still KDE4 based) Dolphin filemanager
• akonadi4 and kdepimlibs4 were added to support KDE 4 applications that call PIM functionality.
• sddm-theme-breeze was removed, the theme is now part of plasma-workspace
• Lots of packages in the 'deps' department which are completely new to Slackware. Since KDE 5 is built on Qt5 (KDE 4 had Qt4 as its base) you'll find many Qt5 related packages. Also, in order for Qt4 and GTK based applications to dock into the Plasma 5 system tray, more dependencies were needed. So, apart from updates to regular Slackware packages and the aforementioned new telepathy support packages, these are the new ones: OpenAL, PyQT5, cfitsio, json-glib, libappindicator, libdbusmenu-gtk, libdbusmenu-qt5, libindicator, lmdb, polkit-qt5-1, qca-qt5, qt-gstreamer, qt5, sni-qt, wayland and xapian-core.
• Note for users of multilib Slackware64 and also using Skype: you will have to grab the 32-bit version of sni-qt and run 'convertpkg-compat32' on it, or else Skype won't be able to dock its icon in the systray.
• A bit sneakily, I built phonon-vlc for you. You will also need a VLC package to be able to use this package though.
• Several source tarballs in Plasma 5.4.x have not been compiled to Slackware packages: libbluedevil and bluedevil (they need BlueZ 5 which is not part of Slackware), muon (a debian/ubuntu package manager), libkface (needs opencv which I was not willing to add as a dependency), user-manager and kwallet-pam (need PAM), plasma-pa (needs pulseaudio).
• One dependency which you'll probably find curious, is wayland. It is required in order to *compile* KWin's X11 driver, but for using KWin inside a X session it is not needed at *runtime*.
• Graphical login: KDM has been replaced with SDDM. Slackware-current supports it already. Select "Plasma" from the SDDM session dropdown. Alternatively, if you prefer good old runlevel 3, you can type (at your own user account's command prompt):
  
  xwmconfig
  
  ... and select "xinitrc.plasma" as your default window manager for X. Then run:
  
  startx

NOTA: também explicaremos abaixo em mais detalhes, atualizar para o KDE 5 não é uma coisa trivial. Você terá que remover todos os pacotes antigos do KDE manualmente. Se você não tem o KDE instalado até agora (acho difícil! mas...) você terá que instalar alguns pacotes do KDE manualmente.

Se você decidir instalar esse pacotes na versão mais atual do Slackware current e excluir todos os pacotes no série de pacotes 'KDE' durante a instalação, você irá perder alguns pacotes adicionais importantes, alguns desses pacotes são essenciais para o bom funcionamento do KDE!

Se você excluir a série 'KDE' do seu Slackware current completamente então você terá que instalar os seguintes pacotes do current pelo menos:

• bluedevil
• libktorrent

E opcionalmente instalar estes pacotes do current também:

• amarok
• calligra
• k3b
• kaudiocreator
• kplayer
• kwebkitpart
• kdevplatform
• kdevelop-pg-qt
• kdevelop
• kdev-python
• kdevelop-php
• kdevelop-php-docs
• kio-mtp
• ktorrent
• oxygen-gtk2
• partitionmanager
• skanlite

Compilando isso tudo do fonte

Fontes e scripts estão separados nos pacotes do 'ktwon' no repositório do alien. Se você quer os fontes do KDE 5 rode o seguinte comando para baixá-los.

# rsync -av rsync://alien.slackbook.org/alien/ktown/source/5 .

Existem várias dependências para o KDE 5 que você terá que compilar e instalar antes de tentar compilar o KDE 5. Compilando e instalando essas dependências no slackware-current é simples basta dar o comando abaixo:

# cd 5/deps
# ./updates.SlackBuild
# cd -

Fique preparado para esperar bastante tempo uma vez que isso irá recompilar o Qt4 e o Qt5 e mais uma pancada de outros pacotes! Os pacotes serão salvos dentro da pasta /tmp.

Então pra você compilar os pacotes do KDE no seu computador rode o seguinte comando:

# cd 5/kde
# ./KDE.SlackBuild

Aguarde um longo tempo e depois você irá ver os pacotes na pasta in /tmp/kde-build.

Note que estes pacotes já foram instalados pelo KDE.Slackbuild!

Mas se você queria apenas criar os pacotes então aí estão eles. E você não precisa mais seguir esse tutorial. Caso queira realmente instalar (que é o objetivo desse post...), então vamos colocar a mão na massa!