- Added steps to specify required source location for Windows WSL
builds.
- Attempted to make the introduction and options for building on Windows
clearer.
I did a build on a windows 10 laptop and took notes, and tried
to improve the document:
- It's the Linux subsystem for Windows, not the other way around.
- Split out dependencies: general ones, 64-bit, 32-bit. Remove the
reference to `build-unix.md`, easy enough to be self-contained.
- Place 64-bit instructions first. 99% will want these.
- Installation instructions: recommend using `/` for prefix, same as we
do on gitian builds. This will allow copying the files to a usable
(from Windows) place using just `make DESTDIR=...`.
- Remove double spaces / consistent width reformatting.
The new Windows Subsystem for Linux (WSL) allows a user to run a bash shell directly on Windows in an Ubuntu based environment. This can be used to cross-compile Bitcoin directly on Windows without the need for a separate Linux VM or Server. The instructions included in this commit explain how to configure the environment and build Bitcoin Core using this new feature.