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export FOO = PASS_FOO
export FOO2=PASS_FOO2
BAR := PASS_BAR
export BAR
export X Y Z
X := PASS_X
Y := PASS_Y
Z := PASS_Z
NOT_EXPORTED := FAIL
export BAZ = NOT_EXPORTED
unexport BAZ
unexport Y
export Y X
# GNU make 3 and 4 behave differently for this, but it must not mess
# up FOO, BAR, X, Y, and Z.
export FOO BAR X Y Z := FAIL
VARREF:=VAR1 VAR2
export $(VARREF)
VAR1:=PASS_VAR1
VAR2:=PASS_VAR2
test:
echo $$FOO
echo $$FOO2
echo $$BAR
echo $$BAZ
echo $$X
echo $$Y
echo $$Z
echo $$VAR1
echo $$VAR2
echo $$NOT_EXPORTED
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