From f9fe73b2ff482e0eed72fde4f671dbee5777de02 Mon Sep 17 00:00:00 2001
From: rillig <rillig@NetBSD.org>
Date: Sun, 13 Sep 2020 21:00:34 +0000
Subject: [PATCH] make(1): add test for dynamic variable with modifiers in
 Var_Parse

---
 usr.bin/make/unit-tests/varparse-dynamic.mk | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/usr.bin/make/unit-tests/varparse-dynamic.mk b/usr.bin/make/unit-tests/varparse-dynamic.mk
index 724cca3a5035..228eb17475b0 100644
--- a/usr.bin/make/unit-tests/varparse-dynamic.mk
+++ b/usr.bin/make/unit-tests/varparse-dynamic.mk
@@ -1,4 +1,4 @@
-# $NetBSD: varparse-dynamic.mk,v 1.1 2020/07/26 22:15:36 rillig Exp $
+# $NetBSD: varparse-dynamic.mk,v 1.2 2020/09/13 21:00:34 rillig Exp $
 
 # Before 2020-07-27, there was an off-by-one error in Var_Parse that skipped
 # the last character in the variable name.
@@ -10,5 +10,16 @@
 .if ${.TARGXX}			# 2 characters difference, must be defined
 .endif
 
+# When a dynamic variable (such as .TARGET) is evaluated in the global
+# context, it is not yet ready to be expanded.  Therefore the complete
+# expression is returned as the variable value, hoping that it can be
+# resolved at a later point.
+#
+# This test covers the code in Var_Parse that deals with VAR_JUNK but not
+# VAR_KEEP for dynamic variables.
+.if ${.TARGET:S,^,,} != "\${.TARGET:S,^,,}"
+.  error
+.endif
+
 all:
 	@: