You may need to build Neovim from scratch for a variety of reasons, some of these include:
- not having a binary available for your operating system
- not having a binary available for your CPU architecture <- this was my reason as I had to build for Ubuntu on an M1 Pro chip
- needing to compile with a non-default option
- because you’re curious (good for you :)
Get a hold of the code
You can either download the source code from the Neovim github repo, navigating to the version you’re interested in, scrolling down to “Assets” and downloading the “Source code” archive.
Or you can clone the repository with the following command:
git clone https://github.com/neovim/neovim.git
Downloaded source
You need to decompress the archive that you downloaded thusly:
tar archive
tar zxvf <filename>.tar.gz
zip archive
unzip <filename>.zip
Building Neovim
Prerequisites
There is some software that you need in order to build Neovim. The installation instructions differ from system to system, but you can find the instructions for your system (hopefully :) here.
For Ubuntu, you need to run the following:
sudo apt-get install ninja-build gettext libtool libtool-bin autoconf automake cmake g++ pkg-config unzip curl doxygen
Building
Whether you cloned the repository or downloaded the source code manually you need to cd into the directory containing the source code and run:
make CMAKE_BUILD_TYPE=Release
This will build a release version in the current directory in ./build. To install the binary system-wide, you need to run:
sudo make install
That should do it. If you need/want to clean up a partial build and start again, you can run:
make distclean
I hope this helps :)