libgo: Update to Go 1.3 release.

From-SVN: r212837

1 files changed, 23 insertions, 0 deletions

diff --git a/libgo/go/os/sys_freebsd.go b/libgo/go/os/sys_freebsd.go
new file mode 100644
index 0000000..273c2df
--- /dev/null
+++ b/libgo/go/os/sys_freebsd.go
@@ -0,0 +1,23 @@
+// Copyright 2014 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.
+
+package os
+
+import "syscall"
+
+// supportsCloseOnExec reports whether the platform supports the
+// O_CLOEXEC flag.
+var supportsCloseOnExec bool
+
+func init() {
+	osrel, err := syscall.SysctlUint32("kern.osreldate")
+	if err != nil {
+		return
+	}
+	// The O_CLOEXEC flag was introduced in FreeBSD 8.3.
+	// See http://www.freebsd.org/doc/en/books/porters-handbook/freebsd-versions.html.
+	if osrel >= 803000 {
+		supportsCloseOnExec = true
+	}
+}