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How To Install CMake 3.14 on Ubuntu 18.04

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In this comprehensive guide, we will walk you through the process of installing CMake 3.14 on Ubuntu 18.04. CMake is a powerful cross-platform tool that controls the software compilation process using simple platform and compiler-independent configuration files. It generates native makefiles and workspaces that can be used in the compiler environment of your choice.

Prerequisites

Before starting, ensure that you have a functioning Ubuntu 18.04 system and have administrative (sudo) privileges.

Method 1: Install from the Ubuntu Repository

This is the easiest method, but it may not install the latest version of CMake.

  1. Update your system: Always start by updating your system to the latest packages. Run the following command in your terminal:
    sudo apt update && sudo apt upgrade -y
    This command updates the package list and upgrades the installed packages to their latest versions.
  2. Install CMake: To install CMake, run the following command:
    sudo apt install cmake
    This command installs CMake from the Ubuntu repository.

Method 2: Compile from Source

This method is more complex but will ensure you have the latest version of CMake.

  1. Install necessary packages: You will need to install the build-essential and git packages. Run the following command:
    sudo apt install build-essential git
    The build-essential package includes a range of tools necessary for compiling software, such as gcc and make. git is a version control system used to download the CMake source code.
  2. Download the CMake source code: Use git to clone the CMake repository:
    git clone https://github.com/Kitware/CMake/
    cd CMake
    This command downloads the CMake source code and changes the working directory to the CMake directory.
  3. Compile and install CMake: Run the following commands to compile and install CMake:
    ./bootstrap && make && sudo make install
    The ./bootstrap command configures the build. make compiles the source code, and sudo make install installs the compiled software.

Method 3: Use Conda

If you have conda installed, you can create a new environment and install CMake into it. This method does not require root/sudo privileges.

  1. Create a new conda environment and install CMake: Run the following command:
    conda create -n CMake cmake
    This command creates a new conda environment named “CMake” and installs CMake into it.
  2. Activate the environment: Activate the new environment by running:
    source activate CMake
    This command activates the “CMake” environment.

In conclusion, these are the three main methods for installing CMake 3.14 on Ubuntu 18.04. Choose the method that best suits your needs. Always make sure to check the official CMake website or the Kitware repository for the most up-to-date version.

Can I use these methods to install CMake on other Linux distributions?

Yes, you can use Method 2 (Compile from Source) on other Linux distributions. However, Method 1 (Install from the Ubuntu Repository) may not be applicable as it depends on the distribution’s package manager. Method 3 (Use Conda) is specific to conda environments and may not be directly applicable to other distributions.

How can I check the version of CMake installed on my system?

To check the version of CMake installed on your system, open a terminal and run the following command:

cmake --version

This command will display the installed CMake version.

Can I have multiple versions of CMake installed on my system?

Yes, it is possible to have multiple versions of CMake installed on your system. However, you need to be cautious about the paths and ensure that the correct version is used for your projects. Method 3 (Use Conda) allows you to create separate conda environments with different versions of CMake.

How do I uninstall CMake from my Ubuntu 18.04 system?

If you installed CMake using Method 1 (Install from the Ubuntu Repository), you can uninstall it by running the following command:

sudo apt remove cmake

If you installed CMake using Method 2 (Compile from Source), you can navigate to the CMake source code directory and run the following command to uninstall:

sudo make uninstall

For Method 3 (Use Conda), you can deactivate the environment by running:

source deactivate

This will remove the CMake installation from the conda environment.

How can I upgrade CMake to a newer version?

If you installed CMake using Method 1 (Install from the Ubuntu Repository), you can upgrade to a newer version by running the following command:

sudo apt update && sudo apt upgrade cmake

This command will update the package list and upgrade CMake to the latest version available in the Ubuntu repository.

If you installed CMake using Method 2 (Compile from Source), you can repeat the steps in Method 2 with the newer version of the CMake source code to upgrade your installation.

For Method 3 (Use Conda), you can update CMake by activating the conda environment and running:

conda update cmake

These methods will ensure that you have the latest version of CMake installed on your system.

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