loadlibindex libfile.tlib
Load the package library index of the library file
libfile (which must have the suffix .tlib).
Package library indexes along the auto_path are
loaded automatically on the first demand_load; this
command is provided to explicitly load libraries that are not in the
path. If the index file (with a .tndx suffix) does not
exist or is out of date, it will be rebuilt if the user has directory
permissions to create it. If a package with the same name as a package
in libfile.tlib has already been loaded, its definition
will be overridden by the new package. However, if any procedure has
actually been used from the previously defined package, the procedures
from libfile.tlib will not be loaded.
This command will also load an index built by
mkindex.tcl program supplied with standard Tcl. This
file must be named tclIndex.