=== Updating ===
When updating the source from [[git]], it is usually unnecessary to
restart CMake as the solution is able to reconfigure itself when CMake files are changed. Simply rebuild the solution from Visual Studio and accept the reload of updated projects. When the Simgear/FlightGear version numbers change, you do have to re-configure in CMake.
To change build options or directory path, it is mandatory to
use the CMake Gui. In case of problems, locate the <tt>CMakeCache.txt</tt> file in <tt>"Where to build the binaries”</tt> directory and delete it to reconfigure from scratch or use the menu item <tt>File > Delete Cache</tt>.
=== TerraGear ===