Module Name: src
Committed By: rillig
Date: Sat Dec 19 20:35:39 UTC 2020
Modified Files:
src/usr.bin/make/unit-tests: directive-undef.mk
Log Message:
make(1): add tests for undefining variables with exotic names
To generate a diff of this commit:
cvs rdiff -u -r1.6 -r1.7 src/usr.bin/make/unit-tests/directive-undef.mk
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/usr.bin/make/unit-tests/directive-undef.mk
diff -u src/usr.bin/make/unit-tests/directive-undef.mk:1.6 src/usr.bin/make/unit-tests/directive-undef.mk:1.7
--- src/usr.bin/make/unit-tests/directive-undef.mk:1.6 Sun Dec 13 01:07:54 2020
+++ src/usr.bin/make/unit-tests/directive-undef.mk Sat Dec 19 20:35:39 2020
@@ -1,4 +1,4 @@
-# $NetBSD: directive-undef.mk,v 1.6 2020/12/13 01:07:54 rillig Exp $
+# $NetBSD: directive-undef.mk,v 1.7 2020/12/19 20:35:39 rillig Exp $
#
# Tests for the .undef directive.
#
@@ -16,7 +16,34 @@
. warning $1$2$3
.endif
+# Without any arguments, .undef tries to delete the variable with the empty
+# name, which never exists; see varname-empty.mk.
.undef # oops: missing argument
+
+# It must be possible to undefine variables whose name includes spaces.
+SPACE= ${:U }
+${SPACE}= space
+.if !defined(${SPACE})
+. error
+.endif
+.undef ${SPACE}
+.if defined(${SPACE})
+. error
+.endif
+
+
+# It must be possible to undefine variables whose name includes dollars.
+DOLLAR= $$
+${DOLLAR}= dollar
+.if !defined(${DOLLAR})
+. error
+.endif
+.undef ${DOLLAR}
+.if defined(${DOLLAR})
+. error
+.endif
+
+
all:
@:;
