1 files changed, 60 insertions, 0 deletions
diff --git a/usr.bin/make/unit-tests/varcmd.mk b/usr.bin/make/unit-tests/varcmd.mk
new file mode 100644
index 0000000..005ed47
--- /dev/null
+++ b/usr.bin/make/unit-tests/varcmd.mk
@@ -0,0 +1,60 @@
+# $Id: varcmd.mk,v 1.3 2017/12/08 03:36:42 sjg Exp $
+#
+# Test behaviour of recursive make and vars set on command line.
+
+FU=fu
+FOO?=foo
+.if !empty(.TARGETS)
+TAG=${.TARGETS}
+.endif
+TAG?=default
+
+all:	one
+
+show:
+	@echo "${TAG} FU=<v>${FU}</v> FOO=<v>${FOO}</v> VAR=<v>${VAR}</v>"
+
+one:	show
+	@${.MAKE} -f ${MAKEFILE} FU=bar FOO+=goo two
+
+two:	show
+	@${.MAKE} -f ${MAKEFILE} three
+
+three:	show
+	@${.MAKE} -f ${MAKEFILE} four
+
+
+.ifmake two
+# this should not work
+FU+= oops
+FOO+= oops
+_FU:= ${FU}
+_FOO:= ${FOO}
+two: immutable
+immutable:
+	@echo "$@ FU='${_FU}'"
+	@echo "$@ FOO='${_FOO}'"
+.endif
+.ifmake four
+VAR=Internal
+.MAKEOVERRIDES+= VAR
+.endif
+
+four:	show
+	@${.MAKE} -f ${MAKEFILE} five
+
+M = x
+V.y = is y
+V.x = is x
+V := ${V.$M}
+K := ${V}
+
+show-v:
+	@echo '${TAG} v=${V} k=${K}'
+
+five:	show show-v
+	@${.MAKE} -f ${MAKEFILE} M=y six
+
+six:	show-v
+	@${.MAKE} -f ${MAKEFILE} V=override show-v
+