Cmake3 latest versions: 3.20.1, 3.19.7, 3.19.2, 3.18.3, 3.17.5, 3.17.4, 3.17.2, 3.17.0, 3.14.6, 3.14.3, 3.12.1, 3.11.4. Cmake3 architectures: aarch64, i686, x8664. Centos 7 no package cmake3 available. CMake on Linux CentOS 7, how to force the system to use cmake3, between both packages. Use the alternatives command to register both installations: $ sudo alternatives -install /usr/local/bin/cmake cmake I reinstalled Centos 7 twice over the past couple of days from the same live usb.
I’m not going to bloat the post with personal opinions about how good is the installation method is. Here you get the EMAN2 sources. This is the HOWTO install , and from there I did the compilation with anaconda. As you may know from previous posts, we use modules. First we load our python module and upgrade conda like suggested on the error message, if you get it. Then we go ahead with the instructions. I do that on a new window.
In my case, 27 new packages are installed, 14 packages are updated, 16 packages are downgraded, meaning around 40 packages are downloaded and extracted. Since we do that over the python modul, (I hope) I do need to do this only once. It takes like 10 minutes to be done, but multiply that by 30! Now I cmake what I got from github. As expected, I get a cmake version error.
Let’s donwload then a new cmake and make a module for it. I get the binary cmake for my linux, the cmake-3.13.3-Linux-x86_64.tar.gz, so I don’t need to compile it. The unzipped folder I place on /network/cmake-3.13.3/. My module looks like this then:
Time to cmake again. I do it on a new terminal. First I load both modules, my python and my cmake. Then I just follow the instructions…
And make -j 4, make install. OK! The final module (eman22 installed on /network/eman22-build) looks like this:
The first test, loading the module as an user, and running e2version.py, tells me what I want to see.
We are done! See you on the other side, soon, I promise…
In this article, we’ll learn to install cmake on Linux. CMakeis a cross-platform open-source meta-build system that can build, test, and package software. It can be used to support multiple native build environments including make in Linux/Unix, Apple’s Xcode, and Microsoft Visual Studio.
How to Install CMake on Linux?
If you are to work with CMake in Linux, you’ll probably need a C/C++ compiler and the
make build system since CMake generates ‘Makefiles’ on Linux. A Makefile contains the steps for compiling the program and generating an executable. The installation steps for these tools depend on the distribution.
We will be looking at two ways to install CMake.
1. Using Package Managers like apt/dnf
Note: Installing this way, the version of CMake installed will generally be an older one.
For Ubuntu/Debian (and their derivatives)
We can obtain information of a package and its dependencies using the apt command. Doing that for
As is highlighted in the screenshot above,
cmake recommends installing
gcc (GNU Compiler Collection) and
make. It also suggests some packages which are optional. You’ll need to install
g++ if you’re working on a C++ project.
To install cmake , g++ and make using the apt command, type:
Note that while installing these packages, the
gcc package is also installed.
For Fedora/CentOS (RedHat based distros and their derivatives)
make using the
dnf command, type:
2. Using CMake’s Official Website
CMake’s official website has two options to install CMake on Linux as of now:
- A shell script (
Installing through either of them will get you the latest version of CMake. You’ll still need a compiler (
make. You can install them using the package manager. For Ubuntu/Debian based distros, type:
For RedHat Based distros, type:
For CentOS 8 based systems, we’ll be using the shell script. You can either download the script by clicking on the .
sh file link on the website or by using the
wget command :
Note: The link is for the latest version of CMake as of writing this article and may change in the future.
It is in general a good idea to inspect scripts before running them. To do that you can open it in the editor of your choice. Using the nano editor to open it:
Going through the script, it also contains the
.tar.gz archive for the CMake binary. Hence, it’s size (~40MB). The script acts like a ‘self extracting archive’. Now that we’ve inspected the script, we can run it from the current directory using:
The above command will install
cmake globally for all users to
/usr/local/bin and the
exclude-subdir option is to get rid of the extra directory that is produced while extracting the
(You need the
tar command as the script uses it. If prompted
tar: command not found , install it by typing
$ sudo dnf install tar)
cmake will not be managed by the system package manager when installed this way. To update
cmake you’ll need to repeat this process for any new versions.
A Sample CMake project
We’ll create a simple C++ Hello World program which uses CMake. Let’s start by creating a different directory for our project. Using the mkdir and cd commands:
Currently, the directory is empty. We’ll now create a C++ source file named
hello_world.cpp which, as the name suggests, will print just Hello World!
You can use the editor of your choice. I’ll be using nano:
Now we’ll create a
CMakeLists.txt file(with this exact capitalization) which is required by CMake:
The root directory of the project (
~/projectzero in this case) must contain a
CMakeLists.txt file. Each line in a
CMakeLists.txt file has a command.
CMakeLists.txt file for this project is quite trivial and will only contain these three lines:
It’s a good practice to have a separate
build directory for executables. So, let’s do that:
The project structure looks like this now:
cmake we need to change into the
.. is an alias for the parent directory and tells
cmake to find the
CMakeLists.txt file in the parent directory. If you see CXX anywhere while working with CMake, it refers to C++ as CXX.
cmake .. generated the configuration files for CMake in
projectzero/build . We can list the contents of
build directory using the ls command:
Now we can generate the executable simply by typing:
Run the executable by typing:
Congratulations on building your first CMake project. You can find more such beginner-friendly CMake projects on this GitHub profile.
Cmake3 Rhel 7
Centos 7 Dvd Download
In this article we learnt how to install CMake on Linux and created a simple Hello World program using CMake. CMake is a very useful tool for C/C++ development. You can find more information about CMake in its documentation.