Package: qtbase5-dev
Version: 5.7.1~20161021+dfsg-6
Severity: important
Trying to compile lxqt-panel with g++-6 and qtbase5-dev_5.7.1 results in the
following errors:
In file included from /usr/include/x86_64-linux-gnu/qt5/QtCore/qlist.h:43:0,
from /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:49,
from /usr/include/x86_64-linux-gnu/qt5/QtCore/qplugin.h:43,
from /usr/include/x86_64-linux-gnu/qt5/QtCore/QtPlugin:1,
from
/home/src/lxqt-panel-de/plugin-clock/../panel/ilxqtpanelplugin.h:32,
from /home/src/lxqt-panel-de/plugin-clock/lxqtclock.h:34,
from /home/src/lxqt-panel-de/plugin-clock/lxqtclock.cpp:32:
/usr/include/x86_64-linux-gnu/qt5/QtCore/qalgorithms.h: In function ‘uint
qCountTrailingZeroBits(quint16)’:
/usr/include/x86_64-linux-gnu/qt5/QtCore/qalgorithms.h:630:32: error:
‘__builtin_ctzs’ was not declared in this scope
return v ? __builtin_ctzs(v) : 16U;
^
/usr/include/x86_64-linux-gnu/qt5/QtCore/qalgorithms.h: In function ‘uint
qCountLeadingZeroBits(quint16)’:
/usr/include/x86_64-linux-gnu/qt5/QtCore/qalgorithms.h:693:32: error:
‘__builtin_clzs’ was not declared in this scope
return v ? __builtin_clzs(v) : 16U;
^
This is because g++ removed __builtin_clzs and __builtin_ctzs. See for example
https://www.mail-archive.com/gcc-bugs@gcc.gnu.org/msg511530.html
