I’m trying to compile a simple qt5 qml application on Debian Jessie.
At first I got following error from qmake:
Project ERROR: Unknown module(s) in QT: quick qml
It is caused by some development package not installed by default. You need to install qtdeclarative5-dev package:
sudo apt-get install qtdeclarative5-dev
Now qmake works but when I run make, it couldn’t find OpenGL library:
g++ -m64 -Wl,-O1 -o example-gui main.o qrc_qml.o -L/usr/X11R6/lib64 -lQt5Quick -lQt5Qml -lQt5Widgets -lQt5Network -lQt5Gui -lQt5Core -lGL -lpthread /usr/bin/ld: cannot find -lGL
After some Googling I see that
libgl1-mesa-dev package required but it is already installed and I have a file on
/usr/lib/x86_64-linux-gnu/libGL.so, I couldn’t understand why linkage still fail.