Install Watchman for React Native

Edit on Github
reactnative/watchman_install.md
Dec 26, 2019
React Native & Expo

Easier way is to just download and use the Binary files.

install from source

This is for Ubuntu 18.04.2 LTS

# install dependencies 
sudo apt install -y  automake autoconf libssl-dev libtool python-dev

# use the latest stable release
git clone https://github.com/facebook/watchman.git --depth 1
cd watchman 
./autogen.sh
./configure
make
sudo make install