Qt 4 & 5 - backports (Xenial only)

Backports of Qt 4.8.7+dfsg-7ubuntu2 & Qt 5.9.5+dfsg-0ubuntu2.5 for Xenial.

Qt 4 & 5 packages backported from Bionic providing a recent enough version of Qt to Xenial users for running most new software (Xenial ships with old version 5.5.1 which is incompatible with many recent software versions).

==========================================================================
                Qt 5.9.5 - backport from Bionic (Xenial only)
==========================================================================

accounts-qml-module, adwaita-qt (1.0), appstream (0.12.0), libaccounts-glib, libaccounts-qt, libdbusmenu-qt, libqtpas, libquazip (0.7.6), packagekit (1.1.9), packagekit-qt, polkit-qt-1, pyqt5 (5.10.1), python-qt4 (4.12.1), qca2, qt3d*, qt4-x11, qt5ct (0.34), qtav (1.13.0), qtbase*, qtcharts*, qtchooser, qtconnectivity*, qtdeclarative*, qtdoc*, qtgraphicaleffects*, qtimageformats*, qtlocation*, qtmultimedia*, qtpim*, qtquickcontrols*, qtquickcontrols2*, qtscript*, qtsensors*, qtserialport*, qtspeech*, qtstyleplugins*, qtsvg*, qttools*, qttranslations*, qtvirtualkeyboard*, qtwayland*, qtwebchannel*, qtwebengine*, qtwebkit-examples*, qtwebkit*, qtwebkit-source, qtwebsockets*, qtwebview*, qtx11extras*, qtxmlpatterns*, sddm (0.17.0), signon, signon-plugin-oauth2, signon-ui, sni-qt

Additional packages (compatibility and dependencies): chafa (1.14.5), fontconfig (2.13.1), freeglut (3.4.0), freetype (2.10.4), glib2.0, gobject-introspection, harfbuzz (10.2.0), icu (60.2), icu-le-hb, jasper (4.2.4), libevent (2.1.12-stable), libpng1.6, libwebp (1.5.0), mint-artwork-common, openssl, pysimplesoap (1.16.2), python-{boto,httplib2,imaplib2} (for compat with new openssl), sip4 (4.19.7), snapd-glib (1.60), zlib1g (1.2.13)

Custom Python 3.6 package rebuilds: dbus-python (1.2.0), protobuf36 (3.12.4 = src:protobuf), py3.6qt5 (5.10.1 = src:pyqt5), sip4py36 (4.19.7 = src:sip4)

* denotes a shorthand package name with a common prefix or suffix removed

==========================================================================

*** Install ***

Additional PPAs are needed for full installation of Qt 5.9.5 on Xenial-era systems: a newer APT for PackageKit backports; FFMpeg >= 4.2 for newer Qt multimedia packages; and newer GTK stack for Snap GLib backport. Also, any systems running KDE software will almost certainly need a newer KDE stack to match the newer Qt stack. Do these steps for a full successful install:

  sudo add-apt-repository ppa:savoury1/apt-xenial
  sudo add-apt-repository ppa:savoury1/gtk-xenial
  sudo add-apt-repository ppa:savoury1/qt-xenial
  sudo add-apt-repository ppa:savoury1/kde-xenial
  sudo add-apt-repository ppa:savoury1/ffmpeg4
  sudo apt-get update
  sudo apt-get upgrade && sudo apt-get dist-upgrade

* Note about Qt styles: To get full customisation of Qt 5 styles, do this:

  sudo apt-get install qt5ct qt5-style-plugins

Then launch qt5ct ("Qt5 Settings" in application menu) and customise away.

* Note for Mint 18.1 Serena (similar issues with newer Linux Mint versions have been reported): A system-wide environment variable set in an Xsession startup file installed by mint-artwork-common causes issues with qt5ct. So a modified version of mint-artwork-common specifically for Mint 18.1 MATE Serena systems is provided here which doesn't set the environment variable and ensures qt5ct is installed (such that Qt 5 styles function correctly).

*** Build ***

This PPA has build dependencies on:

  ppa:savoury1/build-tools
  ppa:savoury1/backports
  ppa:savoury1/perl-xenial
  ppa:savoury1/apt-xenial
  ppa:savoury1/gtk-xenial
  ppa:savoury1/graphics
  ppa:savoury1/multimedia
  ppa:savoury1/ffmpeg4
  ppa:savoury1/vlc3

*** Credits ***

- Creators of Qt: Haavard Nord, Eirik Chambe-Eng and the entire Qt team
  https://wiki.qt.io/About_Qt

- Package code: Debian Qt/KDE Maintainers
  https://tracker.debian.org/pkg/qtbase-opensource-src