graphics/py-opengl fails to install

[Robert Huff]

hello:
	
running install_data
warning: no previously-included files matching 'Cvs/*' found anywhere in distribution
warning: no previously-included files matching 'CVS/*' found anywhere in distribution
/usr/local/bin/tclsh8.4 /usr/ports/graphics/py-opengl/work/PyOpenGL-2.0.0.44/register.tcl
successful loading of Togl.so
can't read "::tcl::direct": no such variable
    while executing
"if { !$::tcl::direct } {
                    tclLog "commands provided were $cmds"
                }"
    (procedure "pkg_mkIndex" line 281)
    invoked from within
"pkg_mkIndex -verbose /usr/local/lib/python2.3/site-packages/OpenGL/Tk/freebsd5-tk8.4 Togl.so"
    (file "/usr/ports/graphics/py-opengl/work/PyOpenGL-2.0.0.44/register.tcl" line 1)
*** Error code 1

Stop in /usr/ports/graphics/py-opengl.


	Is some other port a requirement?  (And if so, why isn't the
absence getting detected?)


				Robert Huff