A small precision.
The svn number retrieved by svn may have a small difference with the last patch, because this svn number applies to the last patch available for the version you are compiling.
For example, after updating to svn 7798, if you compile a wxsmith branch version, you should obtain more a less a svn number : 7791 and for a wxpropgrid_debugger version svn number 7790.
I tried myself to update with svn 7798 but I obtain svn 7793 : quite strange but may be quite normal because most patches between 7792 and 7798 does not apply to windows or trunk version.
gd_on