Building the Qt port on MeeGo 1.2 Harmattan with Qt 5

See also Building QtWebKit on Linux and Setting Up Development Environment For N9

This page, as well as the attempt of achieving this build, is work in progress.

Assumptions

• Working Scratchbox setup. Instructions are here: ​http://www.developer.nokia.com/Community/Wiki/Harmattan:Platform_Guide/Getting_started_with_Harmattan_Platform_SDK/Installing_Harmattan_Platform_SDK
• Running N950/N9 with root, security disabled and scratchbox home directory mounted via NFS

Installing Build Dependencies

Inside Scratchbox:

• Basic build deps, shared between Qt 5/4 and WebKit stuff: fakeroot apt-get build-dep qt4-x11 libgrob-qtwebkit (Yes, the libgrob-qtwebkit part is intentional)
• Dependencies needed for XCB back-end: fakeroot apt-get install libxcb1 libxcb1-dev libx11-xcb1 libx11-xcb-dev libxcb-keysyms1 libxcb-keysyms1-dev libxcb-image0 libxcb-image0-dev libxcb-shm0 libxcb-shm0-dev libxcb-icccm1 libxcb-icccm1-dev libxcb-sync0 libxcb-sync0-dev libxcb-xfixes0-dev
• Ensure the render packages are gone: fakeroot apt-get remove --purge libxcb-render-util0 libxcb-render-util0-dev

Getting the Qt sources

Outside Scratchbox:

• git clone git://gitorious.org/qt/qt5.git qt5
• cd qt5
• Check out the current qt5 revision used by the bot to run tests: git checkout 91f83fa33a1cc5a97b17d8e4d25e1bb952006061
• Initialize & Clone the sub-modules needed: ./init-repository --module-subset=qtbase,qtxmlpatterns,qtscript,qtdeclarative

Note: Use the following commands to update from a previous check-out:

• cd qt5
• git fetch --recurse-submodules
• git checkout 91f83fa33a1cc5a97b17d8e4d25e1bb952006061
• git submodule update --recursive

If you'd like to clean out everything(!), you can use the following sequence of commands:

• cd qt5
• git submodule foreach --recursive git clean -fdx
• git clean -fdx
• ./configure ......

Build Instructions for Qt

Note: DO NOT USE SHADOW BUILDS OF QT (MODULES) AT THE MOMENT.

Inside Scratchbox in the qt5 directory:

export -n QTDIR	To unset QTDIR. Or make sure that QTDIR points to your qt5/qtbase directory.
./configure -developer-build -opensource -confirm-license -fast -force-pkg-config -nomake tests -nomake examples -nomake demos -platform linux-g++-maemo	Note the use of the maemo mkspec
make	From the toplevel qt5 directory to build all modules in one shot.
export PATH=$PWD/qtbase/bin:$PATH	Ensure your PATH is up-to-date to use the qt5 qmake instead of the default one.

Qt5 packages for Harmattan

If you don't want to build Qt5 from scratch you can use a repository with the Qt5 modules required by QtWebKit. Currently only armel packages are available, built using the weekly hashes.

On scratchbox:

• Add "deb ​http://qtlabs.org.br/~lmoura/qt5/ unstable main xcb" to /etc/apt/sources.list

On the device:

• Run the script ​http://qtlabs.org.br/~lmoura/install_qt5.sh as root
• To become root, on a developer-mode enabled device, use "devel-su" on the terminal or through ssh.
• The script will create a qt5.list file on /etc/apt/sources.list.d/ with the repository line above and install all "qt5-*" packages.
• Along with the Qt5 packages the repository will provide the missing xcb-util packages, using the scratchbox' ones.

Usage:

• All modules are installed to /opt/qt5. To use qmlscene and friends, point PATH to /opt/qt5/bin.

Build WebKit

• perl Tools/Scripts/build-webkit --qt --release --no-3d-canvas --qmakearg="CONFIG+=use_qt_mobile_theme"

Install dependencies on the device

• Some packages are not in the device apt repositories and therefore need to be transfered from scratchbox.
  • Execute the following lines inside scratchbox:

    fakeroot apt-get -d install libxcb-image0 libxcb-keysyms1 libxcb-icccm1 libxcb-aux0 libxcb-event1 libxcb-property1
    mkdir ~/swork/packages && cd ~/swork/packages
    cp /var/cache/apt/archives/libxcb-image0_* . 
    cp /var/cache/apt/archives/libxcb-keysyms1_* .
    cp /var/cache/apt/archives/libxcb-icccm1_* .
    cp /var/cache/apt/archives/libxcb-aux0_* .
    cp /var/cache/apt/archives/libxcb-event1_* .
    cp /var/cache/apt/archives/libxcb-property1_* .
    

  • Now ssh to the device and change into your NFS mounted directory to install the previously downloaded packages

    cd /your_nfs_mount/swork/packages/
    dpkg -i *