$packages_visited[]

Used to prune package search

packages_symbol()

Prints name of package list symbol for the given package class ($1) and script name ($2)

packages_symbol_read()

Prints list of packages for the given symbol ($1), as generated by packages_symbol().

lib_packages()

Prints all packages for the package class ($1) and named library ($2).

packages_lib_deps()

Prints packages for the class ($1) for each of the given libraries ($@).

tool_packages()

Prints all packages for the package class ($1) and the named tool script ($2).

$1 - Package class

$2 - Tool script name (default: $script_name)