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|
SEDLIST="/usr/bin/sed /bin/sed sed gnused gsed"
DIFF=$(which diff)
if ! test -x "$DIFF" ; then
/bin/echo -e "\n\ntesting for sed needs 'diff' on your build machine\n";
exit 1;
fi;
for SED in $SEDLIST
do
if ! test -x $SED ; then
SED=$(which $SED)
if ! test -x "$SED" > /dev/null ; then
SED=""
continue
fi
fi
echo "HELLO" > .sedtest
echo "GOODBYE" > .sedtest-correct
$SED -i -e "s/HELLO/GOODBYE/" .sedtest >/dev/null 2>&1
if test $? != 0 ; then
SED=""
elif test -e ".sedtest-e" ; then
rm -f ".sedtest-e"
SED=""
elif ! $DIFF ".sedtest" ".sedtest-correct" > /dev/null ; then
echo "diff failed"
SED=""
fi
rm -f .sedtest .sedtest-correct
if [ ! -z "$SED" ] ; then
break
fi
done
echo $SED
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