IriX64@FthrNtr ~
$ cd /usr/brlcad-7.10.0
IriX64@FthrNtr /usr/brlcad-7.10.0
$ cd bin
IriX64@FthrNtr /usr/brlcad-7.10.0/bin
$ ./mged -c
BRL-CAD Release 7.10.0 Geometry Editor (MGED)
Thu Apr 12 00:19:25 EST 2007, Compilation 2
IriX64@FthrNtr:/home/IriX64/brlcad-7.10.0/brlcad-7.10.0/src/mged
Itcl_Init error Can't find a usable itcl.tcl in the following directories:
/usr/brlcad-7.10.0/lib/itcl3.2 ./../lib/itcl3.2 ./../library ./../../library
./../../itcl/library ./../../../itcl/library
This probably means that Itcl/Tcl weren't installed properly.
If you know where the Itcl library directory was installed,
you can set the environment variable ITCL_LIBRARY to point
to the library directory.
attach (nu|X|ogl)[nu]?