Does not building on Microsoft Windows

[fvilante]

TLDR: The original avr-libc repository uses a file named aux.c which MS-Windows considers reserved. See this issue.

As a consequence this repository fails to build in Windows Machines, resulting in a crippy developer's experience which is against Rust design principles (see: Principle of least astonishment (POLA))

This issue is intended to group workaround solutions, while the upstream issue is pending.