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how to install Neovim under Ubuntu
Problem
Under Manjaro I installed neovim with yaourt. It installed version 0.1.4 and it works fine. For Ubuntu, the home page of Neovim suggests a PPA but it installed for me the version 0.1.5-dev, which is a development version.
How to install a specific version under Ubuntu (namely 0.1.4 in this case)?
Solution
Visit https://github.com/neovim/neovim and find the tagged version 0.1.4. Download the zip, uncompress it, and enter the project folder.
Install the dependencies:
$ sudo apt-get install libtool autoconf automake cmake libncurses5-dev g++
Build and install the project:
$ make cmake $ make test $ sudo make install
It’s a good idea to install the “neovim” Python package too:
$ sudo pip2 install neovim $ sudo pip3 install neovim
Tips taken from here.
Update (20170402)
There is a PPA now for neovim stable. Use that: https://github.com/neovim/neovim/wiki/Installing-Neovim#ubuntu .
How to use powerline fonts under Ubuntu? Install the patched fonts: https://github.com/powerline/fonts . Then, if you use konsole, go to its settings and select one of the patched fonts. Currently I use the Hack font.
Compile your own FFmpeg
Problem
There are some great audio codecs for FFmpeg which are open source but not completely compatible with GPL, thus they are not included in the FFmpeg package that you can install from the official repositories.
Solution
If you want these codecs, you must compile your own FFmpeg.
Here you can find a nice description of the available audio codecs. Which one should you use? In short, they come in this order: libfdk_aac > libfaac > Native FFmpeg AAC ≥ libvo_aacenc, i.e. libfdk_aac provides the best quality.
You can download static builds from here but they don’t include libfdk_aac and libfaac either :(
Compiling FFmpeg
Fortunately, compiling FFmpeg under Ubuntu is quite easy. You just need to follow this guide.
I have an installer script for Ubuntu called jabbatron. The new version of this script includes (1) compiling FFmpeg, and (2) updating FFmpeg. They are available under the menu point “(170) install from source (mc, tesseract3, ffmpeg)…”. This script automates all the steps that are described in the aforementioned guide.
The Ubuntu Incident