/etc/xdg/QtProject/qtlogging.ini disables qDebug() logging of all Qt 5 libraries installed on the system

[Friedemann Kleint]

The file globally disables all qDebug() for any Qt 5 installation on the system.

Instead, as in other distros (Fedora), it should go to:

QT_INSTALL_DATA , instead of /etc/xdg/QtProject:
qmake -qt=qt5 -query QT_INSTALL_DATA
/usr/share/qt5

Reference: https://bugreports.qt.io/browse/QTBUG-65841

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: libqt5core5a 5.9.1+dfsg-10ubuntu1
ProcVersionSignature: Ubuntu 4.13.0-25.29-generic 4.13.13
Uname: Linux 4.13.0-25-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.7
Architecture: amd64
CurrentDesktop: KDE
Date: Fri Jan 19 10:36:59 2018
InstallationDate: Installed on 2018-01-10 (9 days ago)
InstallationMedia: Kubuntu 17.10 "Artful Aardvark" - Release amd64 (20171017.1)
SourcePackage: qtbase-opensource-src
UpgradeStatus: No upgrade log present (probably fresh install)
modified.conffile..etc.xdg.QtProject.qtlogging.ini:
 # [Rules]
 # *.debug=false
mtime.conffile..etc.xdg.QtProject.qtlogging.ini: 2018-01-19T09:02:20.779862

[Dmitry Shachnev (mitya57)]

We will remove the file rather than moving it to another location. See https://bugs.debian.org/886437.

[Dmitry Shachnev (mitya57)]

This was fixed in qtbase-opensource-src 5.9.3+dfsg-0ubuntu2 and newer versions in Ubuntu 18.04.