* Sync with Debian 5.4.1+dfsg-4, drop more delta:
  - Enable fpic/fpie patches, although see below
  - Re-enable requiring gdb on ppc64el
  - Remove debian/mark_private_symbols.sh as new pkg-kde-tools is in Ubuntu
* Remaining changes from Debian:
  - Remove firebird dependencies and ibase recommendation
  - Depend on OpenGL ES on all arches from qtbase5-dev
  - Support OpenGL ES twin packages for x86
  - qt5-qmake-arm-linux-gnueabihf alternative qmake
  - Don't set -reduce-relocations and don't revert the upstream bsymbolic
    disabling on non-x86 because of a problem with with Unity 8 on arm - 
    https://launchpad.net/bugs/1403758
  - Use enable_pie.patch to fix QObject::connect failing on ARM
  - Provides: qt-default in qt5-default
  - Use our symbols files, including supporting gles x86 Qt
  - Tests enabled (xvfb dep, debian/rules, enable-tests.patch)
  - Additional patches, cherry-picked/upstreamed:
    | Correct-typo-in-the-Gujarati-openType-identififer.patch
    | load_testability_from_env_var.patch
    | make-sure-there-s-a-scene.patch
    | upstream_xcb-Update-mouse-buttons-from-MotionNotify-events.patch
    | upstream-gerrit_Handle-SelectionWindowDestroy-in-QXcbClipboard.patch
    | upstream_Call-ofono-nm-Registered-delayed-in-constructor-othe.patch
    | upstream_xcb_use_themed_cursor.patch
  - Additional patches, Ubuntu specific:
    | enable_pie.patch
    | disable_overlay_scrollbars.diff
    | qt5-qmake-arm-linux-gnueabihf
    | Add-workaround-for-GL-on-Android-emulator.patch
    | enable-tests.patch
    | qopenglframebufferobject_powervrworkaround.patch
    | disable-generic-plugin-when-others-available.patch
* Switch qtbase over to Debian git
* libqt5gui5: demote libqt5libqgtk2 to a suggestion.
* Add try_to_ensure_that_fpic_is_used_in_cmake_builds.patch, it seems
  that apps using CMake files as provided by Qt5 are FTBFS.