[GRASS5] NVIZ and threaded TCL 8.4 working

[Cedric Shock]

Oops,

> What I don't understand is why grass 6 nvis [sic]
> runs fine on my computer with 
> 8.4 and threads.

Of course that's because the Ubuntu packages were linked against libtcl8.3. I 
configured my CVS builds to link against 8.4. I had just never tried to run 
nviz from CVS before trying today, which is also why it looked so alien to 
me.

> Plus I ran it in 8.3 while testing amongst running it in 8.4.

As a result this statement is false, all my tests were linked against 8.4.

--Cedric