Install QT5 SDK on Mac 10.11 El Capitan
The Guide Shows You Step-by-Step How-to Download, Install and Getting-Started with the QT5 SDK Open-Source Development Environment for Mac El Capitan 10.11 OS X.
The Qt5 SDK includes the tools you need to build desktop, embedded and mobile applications with Qt from a single install.
This is also the Recommended way to getting started with Qt5 Development.
The latest SDK has a self updater feature that will keep you up to date as new versions are made available.
To the Qt5 SDK Installation Mac El Capitan Bottom there is a Link to Quick Getting-Started with QT5 SDK Development on Mac.

-
Download QT5 SDK Installer for Linux:
-
Double-Click on Downloaded .dmg to Mount it
-
Then Double-Click on the QT5 SDK Installer
If You Got the Online Installler first Select the Components to be Downloaded & Installed…Solve App can’t be Opened because Unidentified Developer:
- Follow the QT5 Wizard Installer
-
QT Development Quick-Start Guide: