can't read "dir": no such variable
    while executing
"file join $dir doctools.tcl"
    (in namespace eval "::request" script line 2)
    invoked from within
"namespace eval ::request $script"
    ("::try" body line 12)
OUTPUT BUFFER:
if {![package vsatisfies [package provide Tcl] 8.2]} {return}
package ifneeded doctools            1.5.6 [list source [file join $dir doctools.tcl]]
package ifneeded doctools::toc       1.2   [list source [file join $dir doctoc.tcl]]
package ifneeded doctools::idx       1.1   [list source [file join $dir docidx.tcl]]
package ifneeded doctools::cvs       1     [list source [file join $dir cvs.tcl]]
package ifneeded doctools::changelog 1.1   [list source [file join $dir changelog.tcl]]