1 files changed, 33 insertions, 0 deletions
diff --git a/unit-tests/cond-func-defined.mk b/unit-tests/cond-func-defined.mk
new file mode 100644
index 000000000000..dce1399183aa
--- /dev/null
+++ b/unit-tests/cond-func-defined.mk
@@ -0,0 +1,33 @@
+# $NetBSD: cond-func-defined.mk,v 1.3 2020/08/20 17:23:43 rillig Exp $
+#
+# Tests for the defined() function in .if conditions.
+
+DEF=		defined
+${:UA B}=	variable name with spaces
+
+.if !defined(DEF)
+.error
+.endif
+
+# Horizontal whitespace after the opening parenthesis is ignored.
+.if !defined( 	DEF)
+.error
+.endif
+
+# Horizontal whitespace before the closing parenthesis is ignored.
+.if !defined(DEF 	)
+.error
+.endif
+
+# The argument of a function must not directly contain whitespace.
+.if !defined(A B)
+.error
+.endif
+
+# If necessary, the whitespace can be generated by a variable expression.
+.if !defined(${:UA B})
+.error
+.endif
+
+all:
+	@:;