Getting Started/Build/KDE4.1
Objectives
You probably want to keep your current KDE-3.5.x installation till you feel that KDE-4.x.y meets your needs for actual day to day use of your computer. Yet, you want to be able to change over with a minimum of work when the time comes to make the switch.
Method
The best way to accomplish this is to install the needed support libraries on your system in the usual manner. Convention is that these should be installed in the /usr/local/ directory. By default, Troll Tech installs Qt in: /usr/local/Trolltech/Qt-4/. The current KDE-4.0 release branch should be built against Qt-4.3.x (the latest in this branch is 4.3.3 which should be used unless there are reasons not to use it). It is best to install KDE-4.x.y in its own directory so that the directory can be deleted if some large problem occurs. I will be using /usr/local/KDE-4.0/ but you can call it whatever you want.
We will keep configurations straight by using a separate user account for accessing KDE-4.x.y. This user account will contain your configurations of KDE-4 and will have a script to set the environment variables (.bash_profile if using Linux).
Installation
Required packages from your distribution
Create the User Account
Use whatever method you wish to create a new user account. Mine is called: "KDE4". Then edit or create the user specific login script (.bash_profile for Linux). There is a lot that goes into this. Note that this presumes that USER was correctly set by the system login script.
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- # Redundant setting of HOME as work around for Bash bug
- HOME=/home/KDE4
- PATH=$HOME/bin:$PATH
- export PATH HOME
- XDG_DATA_HOME="$HOME/.local/share"
- XDG_CONFIG_HOME="$HOME/.config"
- export XDG_DATA_HOME XDG_CONFIG_HOME
- KDEDIR=/usr/local/KDE-4.0
- KDEHOME=$HOME/.kde4
- KDETMP=/tmp/$USER-kde4
- mkdir -p $KDETMP
- KDEVARTMP=/var/tmp/$USER-kde4
- mkdir -p $KDEVARTMP
- KDEDIRS=$KDEDIR
- PKG_CONFIG_PATH=/usr/local/KDE-4.0/lib/pkgconfig:$PKG_CONFIG_PATH
- export KDEDIR KDEHOME KDETMP KDEVARTMP KDEDIRS PKG_CONFIG_PATH
- QTDIR=/usr/local/Trolltech/Qt-4
- QT_PLUGIN_PATH=$KDEDIR/lib/kde4/plugins:$QT_PLUGIN_PATH
- PKG_CONFIG_PATH=$QTDIR/lib/pkgconfig:$PKG_CONFIG_PATH
- export QTDIR QT_PLUGIN_PATH PKG_CONFIG_PATH
- PATH=$QTDIR/bin:$KDEDIR/bin:$PATH
- export PATH
- XDG_CONFIG_DIRS=/usr/local/KDE-4.0/etc/xdg
- XDG_DATA_DIRS=$KDEDIR/share
- export XDG_CONFIG_DIRS XDG_DATA_DIRS
- LD_LIBRARY_PATH=$QTDIR/lib:$KDEDIR/lib
- export LD_LIBRARY_PATH
- LIBXCB_ALLOW_SLOPPY_LOCK="true"
- export LIBXCB_ALLOW_SLOPPY_LOCK
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This is in addition to other things that you need in the script which would probably go at the beginning -- this large block of junk is to be added at the end. The XDG directories might need to be modified for your system.
Building
To build, you must be logged on as the new user account (KDE4). You can 'su' for the whole thing or 'su -C' for each install.
- Qt is configured with --prefix=/usr/local/Trolltech/Qt-4.
- KDE should use: -DCMAKE_INSTALL_PREFIX=/usr/local/KDE-4 when running cmake.