commit 276cee4d0139706bf98571e7106a587666e7ad11
author Fumitoshi Ukai <fumitoshi.ukai@gmail.com> Thu Apr 09 09:43:28 2015 +0900
committer Fumitoshi Ukai <fumitoshi.ukai@gmail.com> Thu Apr 09 09:43:28 2015 +0900
tree d360121e4b6cfac4d013ce2392c827cfbaecf68a
parent 49156a19f9e221baa37e919e91dac39f1dded014

add empty and undefined case for var_append

testcase/var_append.mk

diff --git a/testcase/var_append.mk b/testcase/var_append.mk
index bee8555..2726a91 100644
--- a/testcase/var_append.mk
+++ b/testcase/var_append.mk
@@ -1,16 +1,27 @@
 S:=simple
 R=recursive
+SE:=
+RE=
 
 foo=FOO
 bar=
 
 S+=$(foo) $(bar)
 R+=$(foo) $(bar)
+SE+=$(foo) $(bar)
+RE+=$(foo) $(bar)
+U+=$(foo) $(bar)
 
 bar=BAR
 
 test:
 	echo "$(S)"
 	echo "$(R)"
+	echo "$(SE)"
+	echo "$(RE)"
+	echo "$(U)"
 	echo "$(flavor S)"
 	echo "$(flavor R)"
+	echo "$(flavor SE)"
+	echo "$(flavor RE)"
+	echo "$(flavor U)"