>Number:         6106
>Category:       bin
>Synopsis:       Expression {$X:=$Y} uncorrectly eval'd by /bin/sh
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    bin-bug-people (Utility Bug People)
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Sep  5 13:20:01 1998
>Last-Modified:
>Originator:     Martin J. Laubach
>Organization:
	
>Release:        1.3.2
>Environment:
System: NetBSD asparagus 1.3.2 NetBSD 1.3.2 (ASPARAGUS) #14: Sat Aug 29 16:16:00 CEST 1998 mjl@asparagus:/home/temp/kernel/sys/arch/i386/compile/ASPARAGUS i386


>Description:

  The following piece of shell script

	unset LINGUAS
	ALL_LINGUAS="en de fr es"
	for lang in ${LINGUAS:=$ALL_LINGUAS}; do
	  echo "lang = $lang"
	done

  incorrectly produces the following output:

	lang = en
	lang = de
	lang = fr
	lang = de
	lang = fr
	lang = es

>How-To-Repeat:
  See above.

>Fix:
  Workaround:

	X=${LINGUAS:=$ALL_LINGUAS};
	unset X
	for lang in $X; do
		...
>Audit-Trail:
>Unformatted: