runtime: add empty windows/signals.h file to fix build

R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/4223049

diff --git a/src/pkg/runtime/windows/signals.h b/src/pkg/runtime/windows/signals.h
new file mode 100644 (file)
index 0000000..6943714
--- /dev/null
+++ b/src/pkg/runtime/windows/signals.h
@@ -0,0 +1,3 @@
+// Copyright 2011 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.