Version 10 of pkg

http://www.purl.org/tcl/home/man/tcl8.4/TclCmd/pkgMkIndex.htm

This is a proc in Tcl that is used to create the package index files, allowing packages to be loaded automatically when package require commands are executed.

LV So,

How does one use pkg_mkIndex? Reading the man page does not seem sufficient to answer this question.
What are the steps one should follow?

 $ cd /path/to/where/the/tcl/and/dll/files/are/located
 $ tclsh8.4
 % pkg_mkIndex . [glob *.tcl *.so]

Are there any tricks, etc.?

When I follow the above steps, I get this:

 $ cat pkgIndex.tcl
 # Tcl package index file, version 1.1
 # This file is generated by the "pkg_mkIndex" command
 # and sourced either when an application starts up or
 # by a "package unknown" script.  It invokes the
 # "package ifneeded" command to set up package-related
 # information so that packages will be loaded automatically
 # in response to "package require" commands.  When this
 # script is sourced, the variable $dir must contain the
 # full path name of this file's directory.
 $

This doesn't seem all that useful.

Tcl syntax help

Category Command Category Package

Version 10 of pkg_mkIndex