1 files changed, 18 insertions, 0 deletions
diff --git a/src/runtime/nbpipe_fcntl_libc_test.go b/src/runtime/nbpipe_fcntl_libc_test.go
new file mode 100644
index 0000000..b38c583
--- /dev/null
+++ b/src/runtime/nbpipe_fcntl_libc_test.go
@@ -0,0 +1,18 @@
+// Copyright 2019 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.
+
+// +build aix darwin solaris
+
+package runtime_test
+
+import (
+	"runtime"
+	"syscall"
+)
+
+// Call fcntl libc function rather than calling syscall.
+func fcntl(fd uintptr, cmd int, arg uintptr) (uintptr, syscall.Errno) {
+	res, errno := runtime.Fcntl(fd, uintptr(cmd), arg)
+	return res, syscall.Errno(errno)
+}