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-rw-r--r--unit-tests/unexport.mk13
1 files changed, 12 insertions, 1 deletions
diff --git a/unit-tests/unexport.mk b/unit-tests/unexport.mk
index 0f1245292ba5e..7d2e8f275173a 100644
--- a/unit-tests/unexport.mk
+++ b/unit-tests/unexport.mk
@@ -1,8 +1,19 @@
-# $Id: unexport.mk,v 1.1.1.1 2014/08/30 18:57:18 sjg Exp $
+# $Id: unexport.mk,v 1.1.1.3 2020/08/08 22:34:25 sjg Exp $
# pick up a bunch of exported vars
+FILTER_CMD= grep ^UT_
.include "export.mk"
.unexport UT_ZOO UT_FOO
UT_TEST = unexport
+
+# Until 2020-08-08, Var_UnExport had special handling for '\n', that code
+# was not reachable though. At that point, backslash-newline has already
+# been replaced with a simple space, and variables are not yet expanded.
+UT_BEFORE_NL= before
+UT_AFTER_NL= after
+.export UT_BEFORE_NL UT_AFTER_NL
+.unexport \
+ UT_BEFORE_NL
+.unexport ${.newline} UT_AFTER_NL