Getting Started/Build/KDE4.x: Difference between revisions

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#REDIRECT [[Getting_Started/Build|Building KDE]]
 
==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/.  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/ 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.x.y and will have a script to set the environment variables (.bash_profile if using Linux).
 
==Installation==
 
=== Required packages from your distribution===
* [[Getting_Started/Build/KDE4/LFS|Linux from Scratch]] or to build from source.
 
(Till other distro instructions are added, you can probably determine the correct version to install by reading the LFS list of libraries)
 
===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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:<nowiki>#</nowiki> Redundant setting of HOME as work around for Bash bug
 
:HOME=/home/KDE4
:PATH=$HOME/bin:<nowiki>$</nowiki>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
:KDEHOME=$HOME/.kde4
:KDETMP=/tmp/$USER-kde4
:mkdir -p $KDETMP
:KDEVARTMP=/var/tmp/$USER-kde4
:mkdir -p $KDEVARTMP
:KDEDIRS=$KDEDIR
:PKG_CONFIG_PATH=$KDEDIR/lib/pkgconfig:$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=$KDEDIR/etc/xdg
:XDG_DATA_DIRS=$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.
 
===Build===
 
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.
 
Packages need to be installed with the correct prefixes for this to work:
 
:If you are building Qt from source, configure it with with --prefix=/usr/local/Trolltech/Qt-4.  If you installed it from a binary, determine the prefix and change: QTDIR in the script above.
 
:KDE should use: -DCMAKE_INSTALL_PREFIX=/usr/local/KDE-4 when running cmake.
 
:KDE Support should installed in the same directory as KDE.  This also applies to some of the packages if you are installing the individual packages/modules for a release or BRANCH.  For packages that don't use CMake that would be: --prefix=/usr/local/KDE-4.  The packages that don't install anything in "share" (eigen,eigen2) can be installed in "/usr/local/".
 
:Other packages should be installed with the default prefix (/usr/local).
 
===Configure===

Latest revision as of 16:35, 20 March 2011