From KDE UserBase Wiki

    Building KDE/Plasma 5 on Ubuntu 14.04 LTS

    The aim of this guide is to help you build KDE Plasma 5 for development and/or use. These instructions are valid as of 31 Aug 2016.

    Install a recent version of cmake

    sudo apt-get install build-essential
    tar -zxvf cmake-3.6.1.tar.gz
    cd cmake-3.6.1/
    sudo apt-get install checkinstall
    sudo checkinstall

    Upgrade libwayland-dev and network-manager from PPA's

    Upgrade libwayland-dev and related dependencies:

    sudo add-apt-repository ppa:xorg-edgers/ppa 
    sudo apt-get update   
    sudo apt-get install libwayland-dev 

    Upgrade network-manager and related dependencies:

    sudo add-apt-repository ppa:9v-shaun-42/networkmanager  
    sudo apt-get update 
    sudo apt-get install network-manager 


    You may lose network connection after this step. Reboot to fix.

    Install Qt 5.7.0 using installer

    Download and install to default location: /opt/Qt5.7.0

    sudo ./

    Choose default options and include "Sources" option


    On my computer it appears to be stuck at 4%(dialog box doesn't respond), but it installs just fine if I wait.

    Install some build dependencies

    sudo apt-get build-dep kde-workspace qtbase5-dev

    Build Qtwebkit

    Install dependencies for building Qtwebkit

    sudo apt-get install flex bison gperf libicu-dev libxslt-dev ruby

    Install git

    sudo apt-get install git

    Clone and build qtwebkit

    git clone git:// --branch 5.7.0 
    mkdir qtwebkit-build 
    cd qtwebkit-build 
    /opt/Qt5.7.0/5.7/gcc_64/bin/qmake ../qtwebkit
    sudo make install 

    Setup kdesrc-build and .kdesrc-buildrc

    Most of this section is taken from Git remote prefix Let's setup a "kde:" prefix for git commands. Add the following text to your ~/.gitconfig: [url "git://"]

      insteadOf = kde:

    [url "ssh://[email protected]/"]

      pushInsteadOf = kde:

    mkdir ~/kdesrc cd ~/kdesrc

    git clone kde:kdesrc-build

    cd kdesrc-build

    cp kdesrc-buildrc-kf5-sample ~/.kdesrc-buildrc

    1. Install a symlink of kdesrc-build to a location in PATH

    mkdir ~/bin ln -s $PWD/kdesrc-build ~/bin export PATH=~/bin:$PATH

    Configure kdesrc-build edit~/.kdesrc-buildrcReplace/path/to/kdesrc-build/kf5-qt5-build-includewith~/kdesrc/kdesrc-build/kf5-qt5-build-includein ~/.kdesrc-buildrc file Addignore-kde-structure trueandmake-options -jNto the global section in ~/.kdesrc-buildrcglobal

     ignore-kde-structure true
     make-options -j5 # NOTE: 5 is the number of jobs, this should usually be (number-of-cpu-cores + 1)
     #stop-on-failure        true        # Stop kdesrc-build 

    end global

    Set qtdir to output of qmake –v minus the lib

       kdedir /opt/kde-5 # Where to install KF5-based software
       qtdir /opt/Qt5.7.0/5.7/gcc_64     # Where to find Qt5


    Make sure you have write access to the director specified by kdedir!

    Setup baloo section to fix compile error

    options baloo
        cmake-options -DCMAKE_CXX_FLAGS="-lc"
    end options 

    kdesrc-build needs xml-parser-perl

    sudo apt-get install libxml-parser-perl

    Build plasma-desktop

    Some more dependencies

    sudo apt-get build-dep polkit-qt-1
    sudo apt-get install libgif-dev
    sudo apt-get install libnm-glib-dev
    sudo apt-get install "^libxcb.*" libx11-xcb-dev libglu1-mesa-dev libxrender-dev libxi-dev
    sudo apt-get install libattr1-dev
    sudo apt-get install liblmdb-dev
    sudo apt-get install libxapian-dev

    Download and install some packages from Xenial:

    mkdir extra-deb
    cd extra-deb
    dpkg -i *.deb


    kdesrc-build --include-dependencies plasma-desktop

    Build some extra applications

    kdesrc-build applications

    Set up environment to run plasma 5