In summary, the following commands will checkout the SVN, regenerate the
configure script and friends, configure SimGrid and build it.
-\verbatim svn checkout svn://scm.gforge.inria.fr/svn/simgrid/simgrid/trunk
-mv trunk simgrid
+\verbatim svn checkout svn://scm.gforge.inria.fr/svn/simgrid/simgrid/trunk simgrid
cd simgrid
./bootstrap
./configure --enable-maintainer-mode --prefix=<where to install SimGrid>