can't read "dir": no such variable
    while executing
"file join $dir libTkhtml3.0.so"
    (in namespace eval "::request" script line 1)
    invoked from within
"namespace eval ::request $script"
    ("::try" body line 12)
OUTPUT BUFFER:
package ifneeded Tkhtml 3.0 [list load [file join $dir libTkhtml3.0.so]]
package ifneeded hv3 0.1 [list source [file join $dir ]]