[src/trunk]: src/usr.bin/make/unit-tests Test that .undef of readOnly variabl...

[sjg <sjg%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/e9e6d2f51a84
branches:  trunk
changeset: 376466:e9e6d2f51a84
user:      sjg <sjg%NetBSD.org@localhost>
date:      Mon Jun 19 15:37:48 2023 +0000

description:
Test that .undef of readOnly variable fails

diffstat:

 usr.bin/make/unit-tests/var-readonly.mk |  8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)

diffs (22 lines):

diff -r c235f4878c78 -r e9e6d2f51a84 usr.bin/make/unit-tests/var-readonly.mk
--- a/usr.bin/make/unit-tests/var-readonly.mk   Mon Jun 19 12:53:57 2023 +0000
+++ b/usr.bin/make/unit-tests/var-readonly.mk   Mon Jun 19 15:37:48 2023 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: var-readonly.mk,v 1.2 2023/06/01 20:56:35 rillig Exp $
+# $NetBSD: var-readonly.mk,v 1.3 2023/06/19 15:37:48 sjg Exp $
 
 # the answer
 N = 42
@@ -9,6 +9,12 @@ N = 666
 .error N ($N) should be 42
 .endif
 
+# undef should fail
+.undef N
+.ifndef N
+.error N should not be undef'd
+.endif
+
 .NOREADONLY: N
 # now we can change it
 N = 69