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Build Quassel on Linux (english) » History » Version 19

powerjungle, 01/12/2021 11:22 PM

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h1. Build Quassel on Linux
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Step-by-step guide to compile the project utilizing the the classic toolchain in a terminal
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{{toc}}
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h2. Preparation of the build system
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The build process needs 
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 - the compiler and some tools like a linker, cmake, make 
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 - the development libraries for KDE5, QT5, OpenSSL and zlib 
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 - and git to manage the Quassel sourcecode
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Under DEBIAN GNU/Linux Buster (10) the needed packages are installed as follows (execute as root):
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<pre><code># apt-get update && apt-get install build-essential cmake extra-cmake-modules qtbase5-dev zlib1g-dev libqca-qt5-2-dev libboost-all-dev libqt5sql5-psql</code></pre>
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(please insert commands for other distributions here)
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h2. Managing the sourcecode
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This task is done utilizing "git":http://en.wikipedia.org/wiki/Git_(software) while being logged in as a normal user.
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The sourcecode is downloaded with 'git clone $URL' and stored in the directory ~/quassel.
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<pre><code>$ cd ~ && git clone https://github.com/quassel/quassel.git</code></pre> 
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The development of Quassel is an ongoing process, so from time to time you want
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to update to the latest contributions with 'git pull origin' .
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<pre><code>$ cd ~/quassel && git pull origin</code></pre>
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h2. Compile!
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After updating the sourcecode one can generate a new build.
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Every build is done in its own directory enabling 
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the return to the old build directory in the case of defeat.
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<pre><code>$ cd quassel
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$ mkdir build
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</code></pre>
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In the build directory the command 'cmake' generates the make-files (i.e. a dependency map for the compiler).
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The options of cmake are described in the file ~/quassel/INSTALL in your source directory. Note: LINGUAS is an environment variable, not a cmake variable. You can optionally export it before running cmake.
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<pre><code>$ cd ~/quassel/build
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$ LINGUAS="de en_US" cmake ~/quassel -DWANT_CORE=ON -DWANT_QTCLIENT=ON -DWANT_MONO=ON -DWITH_KDE=ON -DWITH_OPENSSL=ON -DWITH_DBUS=ON -DWITH_PHONON=ON -DWITH_WEBKIT=ON
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</code></pre>
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Now the command 'make' generates the calls for the compiler
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<pre><code>$ make </code></pre>
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h2. Install with checkinstall
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It is wise to prefer the default packagemanager of your system rather doing a 'make install'.
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The installation will be done as root with checkinstall.
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checkinstall generates a package (deb, rpm or tgz) for your packagemanager (apt, rpm or installpkg), 
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that can later be removed easily and leaves a clean system.
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checkinstall has options for several distributions: -D for Debian, -R for RPM, -S for Slackware.
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When installing the package it asks interactive two questions, as shown in the following example:
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example:
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<pre><code>/home/user/quassel/build/#  checkinstall -D --pkgname quassel-all --pkgversion 0.5.0 --pkgrelease $(date +%y%m%d%H%M%S) make install</code></pre>
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Output:
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 Please enter a description of the package.
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 Finish your description  with an empty line or EOF.
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Input:
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 >> [quassel-all contains quassel-core, quassel-client and quassel (mono).]                                           
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 >> [enter]
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Output:
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 Das Paket wird entsprechend dieser Vorgaben erstellt:
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  0 -  Maintainer: [ your.name@somedomain.test ]
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  1 -  Summary: [ quassel-all contains core, client und quassel (mono). ]
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  2 -  Name:    [ quassel-all ]
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  3 -  Version: [ 0.5.0 ]
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  4 -  Release: [ 091021181559 ]
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  5 -  License: [ GPL ]
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  6 -  Group:   [ checkinstall ]
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  7 -  Architecture: [ i386 ]
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  8 -  Source location: [ build_091021181559 ]
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  9 -  Alternate source location: [  ]
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 10 - Requires: [  ]
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 11 - Provides: [ quassel-all ]
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Input:
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 [ just press [enter] to proceed generating the package]
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The result: Quassel is installed. (here for Debian):
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<pre><code>  Done. The new package has been installed and saved to
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  /home/$(user)/quassel/build/quassel-all_0.5.0-091021103522_i386.deb
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  You can remove it from your system anytime using:
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  dpkg -r quassel-all
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</code></pre>
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h2. Draft of a buildscript
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The repeating tasks of updating and compiling is done in the following buildscript:
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<pre><code>#!/usr/bin/bash
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# quick quassel buildscript (draft)
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#
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# initialize your local git-repository once with this command
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# cd ~ && git clone https://github.com/quassel/quassel.git ~/quassel
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#
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# updating latest contributions:
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cd ~/quassel
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git pull origin
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#
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# make a new build directory with a suffix containing the date
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export date=$(date +%y%m%d%H%M%S)
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mkdir build_$date
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#
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# cmake: Optionen siehe ~/quassel/INSTALL
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cd build_$date
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cmake ~/quassel -DWANT_CORE=ON -DWANT_QTCLIENT=ON -DWANT_MONO=ON -DWITH_KDE=ON -DWITH_OPENSSL=ON -DWITH_DBUS=ON -DWITH_PHONON=ON -DWITH_WEBKIT=OFF -DLINGUAS="de en_US"
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make
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#
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# avoid the classic 'make install', prefer generating a package with checkinstall
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echo  please execute as root via copy & paste in the directory ~/quassel/build_$date 
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echo  first to remove old package: dpkg -r quassel-all
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echo  then to install new package: checkinstall -D --pkgname quassel-all --pkgversion 0.5.0 --pkgrelease $date make install
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</code></pre>