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[src/trunk]: src/usr.bin/make/unit-tests make(1): add test for double expansi...
details: https://anonhg.NetBSD.org/src/rev/95517364dfba
branches: trunk
changeset: 940223:95517364dfba
user: rillig <rillig%NetBSD.org@localhost>
date: Tue Oct 06 21:19:17 2020 +0000
description:
make(1): add test for double expansion in SySV modifier
diffstat:
usr.bin/make/unit-tests/varmod-sysv.mk | 14 +++++++++++++-
1 files changed, 13 insertions(+), 1 deletions(-)
diffs (25 lines):
diff -r 918bd924d59d -r 95517364dfba usr.bin/make/unit-tests/varmod-sysv.mk
--- a/usr.bin/make/unit-tests/varmod-sysv.mk Tue Oct 06 21:05:21 2020 +0000
+++ b/usr.bin/make/unit-tests/varmod-sysv.mk Tue Oct 06 21:19:17 2020 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: varmod-sysv.mk,v 1.4 2020/10/06 21:05:21 rillig Exp $
+# $NetBSD: varmod-sysv.mk,v 1.5 2020/10/06 21:19:17 rillig Exp $
#
# Tests for the ${VAR:from=to} variable modifier, which replaces the suffix
# "from" with "to". It can also use '%' as a wildcard.
@@ -88,3 +88,15 @@
.if ${LIST:%nes=%xxx} != "one two" # lhs is longer than the word "one"
. error
.endif
+
+# As of 2020-10-06, the right-hand side of the SysV modifier is expanded
+# twice. The first expansion happens in ApplyModifier_SysV, where the
+# modifier is split into its two parts. The second expansion happens
+# when each word is replaced in ModifyWord_SYSVSubst.
+# XXX: This is unexpected. Add more test case to demonstrate the effects
+# of removing one of the expansions.
+VALUE= value
+INDIRECT= 1:${VALUE} 2:$${VALUE} 4:$$$${VALUE}
+.if ${x:L:x=${INDIRECT}} != "1:value 2:value 4:\${VALUE}"
+. error
+.endif
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