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>It is often useful to find out the descendants of a package, i.e. all
direct or indirect users of the package. There is another "ocamlfind"
subcommand that allows us to query descendants. For example, to get
the direct and indirect users of p, type in</P
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>ocamlfind query -descendants p</PRE
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>The set of packages that are possible descendants is determined as
follows:
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>All packages located in directories mentioned in the environment
variable OCAMLPATH are candidates. Note that only package directories
containing META files are taken.</P
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>The packages in the default package directory are candidates, too.</P
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>If there are two packages with the same name, only the first
counts, i.e. the first in OCAMLPATH, then the one in the default directory.</P
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>
After this set has been determined, the complete dependency graph is
constructed on it. As the descendants are queried, the dependencies
are read in the inverse way compared with queries of the ancestors.</P
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