Installing Qt binary packages

Note that Geopsy package (3.5.0) is developed and tested with Qt 5.15.2 and Qt 6.5. Successful builds were reported with Qt 5.11. Error were encountered with Qt 5.9. If a sufficiently recent Qt is not available on your platform you can follow this tutorial to install binaries provided directly from Qt.

Downloading online installer

qt.io is a fancy commercial website but not really handy to get access to the open-source Qt package

• Go to Qt
• Click on "Download. Try. Buy" green button in the top right corner
• Scroll down to "Download open source"
• Click on "Go open source" green button
• Scroll down to bottom of the page
• Click on "Download the Qt Online Installer" green button
• Scroll down to the frame entitled "Your download"
• Click on "Download" green button
• You should get at least the download dialog box of your browser asking to open file "qt-unified-linux-x64-4.0.0-online.run"

Great you have the file. Simple no?

Change permissions and run the installer

• Change permission to be able to execute it

 $ chmod a+x qt-unified-linux-x64-4.0.0-online.run

• And start the installer

 $ ./qt-unified-linux-x64-4.0.0-online.run

• Under Windows, double-click on the .exe file

• You have to create a Qt account (as simple as breathing, isn't it?), if you have already one enter your credentials.
• Click on "Next"
• Certify that you have read and approve the obligations of using Open Source Qt
• Click on "Next"
• You receive a great "Welcome", nothing to do
• Click on "Next"
• Make your choice if you want or not to send pseudonymous,... it is up to you
• Click on "Next"
• A very important step: select the destination path, choose it carefully. It is better to avoid moving or renaming it later on.
• Select "Custom installation"
• Click on "Next"
• Select only these components:

 Qt
   Qt 5.15.2 (or higher)
 Developer and Designer Tools
   Qt Creator 9.0.1 (or higher)
   MinGW 8.1.0 64-bit (or higher)

• Accept the license
• Click on "Next"
• Click on "Install"

Now the the real installation starts. It may last a little bit.

The final touch

Qt and the whole Qt Creator development environment is now installed.

 $ ls /path/you/chose/for/Qt
   5.14.2          dist  Examples             installer.dat       Licenses         MaintenanceTool.dat  network.xml  Tools
   components.xml  Docs  InstallationLog.txt  installerResources  MaintenanceTool  MaintenanceTool.ini  QtIcon.png

The interesting part of Qt is in folder 5.14.2 (or another version)

 $ ls /path/you/chose/for/Qt/5.14.2/gcc_64
    bin/          include/      mkspecs/      plugins/      translations/ 
    doc/          lib/          phrasebooks/  qml/ 

'qmake' building tool is in 'bin'. Add this path to your PATH

 export PATH=/path/you/chose/for/Qt/5.14.2/gcc_64/bin:$PATH

If you do not want to pollute your .bashrc, create a file "env" where you intend to build geopsypack:

 #!/bin/bash
 export PATH=/path/you/chose/for/Qt/5.14.2/gcc_64/bin:$PATH

Whenever you want to start building geopsypack, source this file.

 source ./env