Module Name: src
Committed By: rillig
Date: Sat Aug 22 21:02:56 UTC 2020
Modified Files:
src/usr.bin/make/unit-tests: varname-empty.mk
Log Message:
make(1): try a bit harder to set the variable with the empty name
There is not only the != assignment operator, but a few others as well.
Especially the += operator is interesting since it has a different code
path. But all is good.
To generate a diff of this commit:
cvs rdiff -u -r1.2 -r1.3 src/usr.bin/make/unit-tests/varname-empty.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/varname-empty.mk
diff -u src/usr.bin/make/unit-tests/varname-empty.mk:1.2 src/usr.bin/make/unit-tests/varname-empty.mk:1.3
--- src/usr.bin/make/unit-tests/varname-empty.mk:1.2 Sat Aug 22 20:31:50 2020
+++ src/usr.bin/make/unit-tests/varname-empty.mk Sat Aug 22 21:02:56 2020
@@ -1,4 +1,4 @@
-# $NetBSD: varname-empty.mk,v 1.2 2020/08/22 20:31:50 rillig Exp $
+# $NetBSD: varname-empty.mk,v 1.3 2020/08/22 21:02:56 rillig Exp $
#
# Tests for the special variable with the empty name.
#
@@ -8,6 +8,10 @@
# Until 2020-08-22 it was possible to assign a value to the variable with
# the empty name, leading to all kinds of unexpected effects.
+?= default
+#= assigned # XXX: probably undefined behavior
++= appended
+:= subst
!= echo 'value'
# The .for loop expands the expression ${i} to ${:U1}, ${:U2} and so on.
