[GRASS5] Tk/Tcl scripts

[GRASS]

Hi Tcl/Tk developers,

grass5 script now uses GRASS_TCLSH and GRASS_WISH environmental variables to
override the default names, tclsh and wish.

So Tcl/Tk scripts should start with the following lines:

Tcl script:
-----------
#!/bin/sh
# the next line restarts using tclsh \
exec $GRASS_TCLSH "$0" "$@"


Tk script:
-----------
#!/bin/sh
# the next line restarts using wish \
exec $GRASS_WISH "$0" "$@"


GRASS_TCLSH and GRASS_WISH vars will be set to the default names, if users
don't set these vars explicitly.

e.g., on FreeBSD

	setenv GRASS_TCLSH tclsh8.3
	setenv GRASS_WISH wish8.3

	grass5 -tcltk

should be enough.


Regards,
Huidae Cho

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