Qt5 with Qt 4.7 on Ubuntu 13.04. How to install it both without conflicts?

Question

I'm using Qt5 and need Qt 4.7 now (for embedded device). Is it possible to install it additionally on Ubuntu 13.04?

score 2 · Accepted Answer · answered Oct 18 '13 at 15:28

2

I found solution. I can install both libraries and when I'm making:

qtchooser -run-tool=qmake -qt=qt5
make

or

qmake -qt5
make

answered Oct 18 '13 at 15:28

Robotex

score 1 · Answer 2 · edited May 23 '17 at 12:39

It's not that simple. Look this guy reported a .bug

There is a program called qtchooser but it's unreliable, I could not make it work.

What I did:

sudo add-apt-repository ppa:ubuntu-sdk-team/ppa
sudo apt-get update
sudo apt-get upgrade

and then just remove qt5-default, it's about a few kbs of program, then you can easily switch back to qt5 installing qt5-default.

EDIT: I found an easier way to switch between qt4 and qt5 using environment variables

To switch to qt4

 export QTCHOOSER_RUNTOOL=qtconfig
 export QT_SELECT=4

2 Answers2