1 files changed, 21 insertions, 0 deletions
diff --git a/misc/cgo/test/testdata/issue20266.go b/misc/cgo/test/testdata/issue20266.go
new file mode 100644
index 0000000..9f95086
--- /dev/null
+++ b/misc/cgo/test/testdata/issue20266.go
@@ -0,0 +1,21 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Issue 20266: use -I with a relative path.
+
+package cgotest
+
+/*
+#cgo CFLAGS: -I issue20266 -Iissue20266 -Ddef20266
+#include "issue20266.h"
+*/
+import "C"
+
+import "testing"
+
+func test20266(t *testing.T) {
+	if got, want := C.issue20266, 20266; got != want {
+		t.Errorf("got %d, want %d", got, want)
+	}
+}