Version 5.13 is already available, but might cause
initial troubles with accompanying tools/packages.

This might be helpful if the unfortunate webkit history
starts to repeat.

Since they aren't installed, there is no need to build
them. (As a side effect the size of the build archive is
halved :)

The 'latest' part in the former download URL is way bogus,
since it seems that the webkit version won't increase any
more and only the timestamps relate to the current patchlevel.

Nerve ...

For some reason the bee magic doesn't work here, so
call make by hand.

Note:

QWT is nowadays an extension for QT5. The old libs
'libqwt' and 'libqwtmathml' will be removed since they are
unused in the system. IMHO packages (if any) still using
the former qwt should be fixed inplace.

Resulting changes summarized:

  +/usr/local/bin/qdistancefieldgenerator
  -/usr/local/bin/qhelpconverter
  +/usr/local/bin/qmlpreview

  +/usr/local/lib/pkgconfig/Qt5PositioningQuick.pc
  +/usr/local/lib/pkgconfig/Qt5QuickTemplates2.pc
  +/usr/local/lib/pkgconfig/Qt5VirtualKeyboard.pc

  -/usr/local/lib/libqwt.so
  -/usr/local/lib/libqwtmathml.so
  +/usr/local/lib/libQt5PositioningQuick.so
  +/usr/local/lib/libQt5QuickShapes.so
  +/usr/local/lib/libQt5VirtualKeyboard.so
  +/usr/local/lib/libqscintilla2_qt5.so
  +/usr/local/lib/libqwt.so

It looks like distros start installing old Qt4 stuff with
fours attached.

This one works like charme with cmake.

Another note on cmake:
Since the *.cmake files from Qt5 can't be moved into the
cmake context it is usually helpful to define

  CMAKE_PREFIX_PATH=/usr/local/qt5/lib/cmake