Background
Windows
Based on these posts and on this recommended post.
You should install msysgit, to do the checkout.
md C:\relax cd C:\relax
git svn clone http://svn.gna.org/svn/relax/trunk git svn clone http://svn.gna.org/svn/relax/branches/relax_disp
#Build scons
For futurev updates to the SVN revision HEAD, you now need to do a git svn rebase, which is very similar to: svn up
git svn rebase
Check information
git branch -a