Additional directories found in some larger option trees:
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dat
Holds any required data files.
docs
Option tree documentation.
host
Holds X-Midas host primitives used via XBC.
inc
Holds any include files or Java interface definitions.
intr
Holds intrinsic commands.
jars
Holds any additional (external) Java libraries (jar files) that this option tree depends on.
lib
Holds any libraries.
Option trees with many libraries will split them up into lib (general
purpose), libg (graphical), libm (math), libxm
(X-Midas compatibility), and net (networking).