How to Install Qt 5.15 onto CentOS 7

How to Install Qt 5.15 onto CentOS 7

If you are a beginner in the world of programming and looking to install Qt 5.15 on your CentOS 7 system, you have come to the right place. Qt is a powerful and popular framework used for developing cross-platform applications. In this guide, we will walk you through the step-by-step process of installing Qt 5.15 on CentOS 7.

Prerequisites

Before we begin, make sure you have the following prerequisites:

• A CentOS 7 system up and running
• Root access or sudo privileges
• A stable internet connection

Step 1: Update System Packages

The first step is to update your system packages to ensure you have the latest software versions. Open the terminal and run the following commands:

sudo yum update
sudo yum upgrade

This will update your system packages and ensure a smooth installation process.

Step 2: Install Development Tools

Next, we need to install some development tools that are required for building Qt from source. Run the following command in the terminal:

sudo yum groupinstall "Development Tools"

This command will install essential tools like GCC, make, and other necessary packages for building Qt.

Step 3: Install Dependencies

Qt has several dependencies that need to be installed. Run the following command to install these dependencies:

sudo yum install mesa-libGL-devel libpng-devel libjpeg-turbo-devel freetype-devel

This command will install the required libraries and development headers necessary for Qt.

Step 4: Download Qt Installer

Now, it's time to download the Qt installer. Visit the official Qt website (https://www.qt.io/download) and download the Qt Online Installer for Linux. Choose the open source version or the version that suits your needs. Once downloaded, open the terminal and navigate to the directory where the installer is located.

Step 5: Run the Installer

Run the following command in the terminal to make the installer executable:

chmod +x qt-installer-file-name.run

Replace qt-installer-file-name.run with the actual filename of the installer you downloaded.

Now, execute the installer using the following command:

./qt-installer-file-name.run

The Qt installer will launch, and you will be presented with a graphical user interface.

Step 6: Select Components

In the Qt installer, select the components you want to install. Qt offers various components and libraries, so choose the ones that suit your needs. Make sure to select the latest version of Qt (5.15) and any additional tools or libraries you require.

Once you have made your selections, click on the "Next" button.

Step 7: Choose Installation Location

Choose the installation location for Qt. You can either accept the default location or specify a custom directory. It is recommended to use the default location unless you have a specific reason to choose otherwise.

Click on the "Next" button to proceed.

Step 8: Start Installation

Review your selections and click on the "Install" button to start the installation process. The installer will download and install all the selected components.

Grab a cup of coffee and relax while the installer does its job. The installation process may take some time depending on your internet speed and the components you selected.

Step 9: Complete Installation

Once the installation is complete, click on the "Finish" button. Qt 5.15 is now installed on your CentOS 7 system.

Step 10: Test Qt Installation

To verify that Qt is installed correctly, open the terminal and run the following command:

qmake -v

This will display the Qt version information if the installation was successful.

Congratulations!

You have successfully installed Qt 5.15 on your CentOS 7 system. You can now start developing cross-platform applications using the power of Qt.

Summary

In this guide, we have learned how to install Qt 5.15 on CentOS 7. We covered the steps from updating system packages to downloading and running the Qt installer. Now, you can explore the vast possibilities of Qt and develop amazing applications.

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