[GRASS5] [bug #4380] (grass) v.digit segfault

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this bug's URL: http://intevation.de/rt/webrt?serial_num=4380
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Subject: v.digit segfault

Platform: GNU/Linux/x86
grass obtained from: CVS
grass binary for platform: Compiled from Sources
GRASS Version: CVS HEAD 20060503

When I try to run v.digit either through gis.m d.m or commandline (doesn't matter) it crashes.

Here is the backtrace of the core dump:
(gdb) bt
#0  0xa7718ca3 in strlen () from /lib/tls/i686/cmov/libc.so.6
#1  0xa7827789 in Tcl_ExternalToUtfDString () from /usr/lib/libtcl8.4.so.0
#2  0xa78ec365 in Tk_MainEx () from /usr/lib/libtk8.4.so.0
#3  0x08052169 in main ()

Hmm that doesn't help much.

When doing it from gis.m I get a window saying that "child process exited abnormally" With these details:

child process exited abnormally
child process exited abnormally
    while executing
"exec -- d.mon start=x2 >& /dev/null"
    ("eval" body line 1)
    invoked from within
"eval exec -- $cmd $args >& /dev/null"
    (procedure "run" line 6)
    invoked from within
"run d.mon start=x2"
    ("eval" body line 1)
    invoked from within
"eval run $cmd $args"
    (procedure "runcmd" line 6)
    invoked from within
"runcmd "d.mon start=x$xmon""
    invoked from within
"if ![catch {open "|d.mon -L" r} input] {
			while {[gets $input line] >= 0} {
            	if {[regexp -nocase "$xmon.*not running" $line]} {
					run..."
    (procedure "GmVector::WorkOnVector" line 28)
    invoked from within
"GmVector::WorkOnVector $sel 0"
    ("vector" arm line 2)
    invoked from within
"switch $type {
        raster {
        Gm::xmon term r.digit
            return
        }
        vector {
	    GmVector::WorkOnVector $sel 0
       ..."
    (procedure "GmTree::vedit" line 16)
    invoked from within
"GmTree::vedit"
    ("uplevel" body line 1)
    invoked from within
"uplevel \#0 $cmd"
    (procedure "Button::_release" line 18)
    invoked from within
"Button::_release .mainframe.topf.tb1.bbox5.b0"
    (command bound to event)


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