1 files changed, 21 insertions, 0 deletions
diff --git a/src/os/wait_unimp.go b/src/os/wait_unimp.go
new file mode 100644
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--- /dev/null
+++ b/src/os/wait_unimp.go
@@ -0,0 +1,21 @@
+// Copyright 2016 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.
+
+// aix, darwin, js/wasm, openbsd, solaris and wasip1/wasm don't implement
+// waitid/wait6.
+
+//go:build aix || darwin || (js && wasm) || openbsd || solaris || wasip1
+
+package os
+
+// blockUntilWaitable attempts to block until a call to p.Wait will
+// succeed immediately, and reports whether it has done so.
+// It does not actually call p.Wait.
+// This version is used on systems that do not implement waitid,
+// or where we have not implemented it yet. Note that this is racy:
+// a call to Process.Signal can in an extremely unlikely case send a
+// signal to the wrong process, see issue #13987.
+func (p *Process) blockUntilWaitable() (bool, error) {
+	return false, nil
+}