Building the Qt port on MeeGo 1.2 Harmattan with Qt 5

See also Building QtWebKit on Linux

This page as well as the attempt of achieving this build is work in progress. It's also our TODO list to get there.

Goal

The goal is to get WebKit trunk running on the N9/N950, to a state where it can be developed sensibly.

Assumptions

• Working Scratchbox setup (url??)
• 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 37ea8e961b8fdaaa1f36758b8ad059b23c013f15
• Initialize & Clone the sub-modules needed: ./init-repository --module-subset=qtbase,qtxmlpatterns,qtscript,qtdeclarative
• Apply the combined xinput2/harmattan patches to qtbase: Change to qtbase, download wget -O patch.txt http://paste.kde.org/133597/raw/ and apply with git am -3 patch.txt

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

Build Instructions for Qt

Inside Scratchbox:

• Run configure in the qt5 directory: ./configure -nokia-developer -fast -platform unsupported/linux-host-g++ -xplatform linux-g++-maemo -force-pkg-config -nomake tests
• And run make from the toplevel qt5 directory to build all modules in one shot.
• Ensure your PATH is up-to-date: export PATH=$PWD/qtbase/bin:$PATH

Build WebKit

• perl Tools/Scripts/build-webkit -2 --qt --release --no-3d-canvas --makearg="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 *
    

Current Issues / TODO

If you find any issues that you're working on, just add them below :)

• Qt 5 TODOs:
  • Touch Input (xi2) support in Qt 5 for Harmattan (Jocelyn)
  • Input method support in Qt 5 for Harmattan
• Most obvious WebKit issues:
  • Text is funny mis-rendered in MiniBrowser -touch. (Suspect Qt 5 scaled-text-with-raster-engine bug)
  • MiniBrowser doesn't show any web content on Harmattan (Jocelyn, work in progress with solution/patch)
• Rewrite MiniBrowser in QML
• Figure out "kinetic" scrolling (pending QScroller decision)

Done

• Qt 5 TODOs:
  • Build issue with the -platform/-xplatform switch and fontconfig/freetype (Simon).
  • No interaction with page possible when launching MiniBrowser with -touch. Due to broken touch mocking. (Simon)