Many of you are probably aware, but since I rediscovered, let's remind:

Before cloning pharo.git, git must be configured for long file names on windows, even with tonel

������ git config --system core.longpaths true

Borrowed from:

������ http://www.brycevandyk.com/of-too-long-file-names-in-windows-and-git/

This worked for me, otherwise i get a broken clone