The rest of this section describes this system in more detail.
All symbols described here are in the pdefsys package unless otherwise specified.
Informs the defsystem utility that the definition of the system name can be found by loading the file pathname. Otherwise, loads the system defintion from a file. Returns false if the system was not loaded and is not already defined, true otherwise. The default location in which to place and look for binaries. If nil , optimization levels are not changed.