 http://code.qt.io/cgit/qt/qtbase.git/commit/?h=5.11.2&id=25feee4e061b99edab79503d81f5bd045c6c8e3d
 as we now have new glibc!
 already metioned to @tsimonq2 in kubuntu-devel. just copying here for the record
 ack
 Thanks https://launchpad.net/ubuntu/+source/qtbase-opensource-src/5.11.1+dfsg-7ubuntu1
 No problem.
 In Debian too, in case they try to jump the gun on glibc.