can't read "dir": no such variable
    while executing
"file join $dir libtsurf0.1.so"
    (in namespace eval "::request" script line 11)
    invoked from within
"namespace eval ::request $script"
    ("::try" body line 12)
OUTPUT BUFFER:
#
# Tcl package index file
#
# Only works with Tcl >= 8.5
#
# tsurf : tesselation with marching cube
# unix version
if {![package vsatisfies [package provide Tcl] 8.5]} {return}

package ifneeded TSurf 0.1 [list  
    load [file join $dir libtsurf0.1.so] tsurf]