Make Nix builds work

1 files changed, 16 insertions, 0 deletions

diff --git a/vendor/golang.org/x/sys/unix/sockcmsg_dragonfly.go b/vendor/golang.org/x/sys/unix/sockcmsg_dragonfly.go
new file mode 100644
index 0000000..5144dee
--- /dev/null
+++ b/vendor/golang.org/x/sys/unix/sockcmsg_dragonfly.go
@@ -0,0 +1,16 @@
+// 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.
+
+package unix
+
+// Round the length of a raw sockaddr up to align it properly.
+func cmsgAlignOf(salen int) int {
+        salign := SizeofPtr
+        if SizeofPtr == 8 && !supportsABI(_dragonflyABIChangeVersion) {
+                // 64-bit Dragonfly before the September 2019 ABI changes still requires
+                // 32-bit aligned access to network subsystem.
+                salign = 4
+        }
+        return (salen + salign - 1) & ^(salign - 1)
+}