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[Timo Jyrinki <timo.jyrinki@xxxxxxxxxxxxx>]

https://codereview.qt-project.org/#/c/122258/

** Changed in: qtbase-opensource-src (Ubuntu)
     Assignee: (unassigned) => Timo Jyrinki (timo-jyrinki)

** Summary changed:

- Please backport this patch into qtbase-5.5 for wily
+ Please backport this patch into qtbase

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https://bugs.launchpad.net/bugs/1519927

Title:
  Please backport this patch into qtbase

Status in qtbase-opensource-src package in Ubuntu:
  New

Bug description:
  There's an issue with QCoreApplication::libraryPaths() which always
  appends QLibraryInfo::location(QLibraryInfo::PluginsPath) first and
  only then it reads/appends QT_PLUGIN_PATH contents. In K/Ubuntu,
  QLibraryInfo::location(QLibraryInfo::PluginsPath) returns
  "/usr/lib/x86_64-linux-gnu/qt5/plugins" by default.

  This makes effectively all custom development outside of /usr
  impossible if there is also a system version of some plugin as Qt will
  /always/ load the system one rather than the one that's being worked
  on (and installed to say /opt), even with correct QT_PLUGIN_PATH set.

  This is fixed in Qt but apparently in 5.6 only, so I'd like to request
  backporting this following commit to Qt 5.5 for wily:

  http://code.qt.io/cgit/qt/qtbase.git/commit/src/corelib/kernel/qcoreapplication.cpp?id=6129be8a4ba976c42e51012ebaa9005eb402db80

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