WSL replaces Cygwin for Windows users

Version 1.7.4 migrates the Cygwin dependency to WSL - which will hopefully allow running Tephra2 with Windows 10+ in a smoother way. Thanks to @jowlem for the help.

Setup WSL on Windows 10+

1. From the start menu, choose "Turn Windows features on or off"
2. Scroll down and make sure that Hyper-V and Windows Subsystem for Linux are activated
3. Reboot if needed
4. Open the Microsoft store and install Ubuntu
5. Open Ubuntu and follow instructions to setup a user name and a password
6. Once the terminal is ready, enter these commands one after the other (i.e., make sure a command completed before starting the next one). Note that sudo will prompt you to enter the password you just defined. It is not showing up as you write it, just press Enter once you are done:

• sudo apt update
• sudo apt upgrade -y
• sudo apt-get install build-essential -y

This should allow running Tephra2 from within TephraProb on Windows.