diff --git a/src/net/cgo_bsd.go b/src/net/cgo_bsd.go
index 1456289b0691b..082e91faa8afb 100644
--- a/src/net/cgo_bsd.go
+++ b/src/net/cgo_bsd.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//go:build cgo && !netgo && (darwin || dragonfly || freebsd)
+//go:build cgo && !netgo && (dragonfly || freebsd)
 
 package net
 
diff --git a/src/net/cgo_darwin.go b/src/net/cgo_darwin.go
new file mode 100644
index 0000000000000..129dd937fe077
--- /dev/null
+++ b/src/net/cgo_darwin.go
@@ -0,0 +1,9 @@
+// Copyright 2022 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 net
+
+import "internal/syscall/unix"
+
+const cgoAddrInfoFlags = (unix.AI_CANONNAME | unix.AI_V4MAPPED | unix.AI_ALL) & unix.AI_MASK
diff --git a/src/net/cgo_stub.go b/src/net/cgo_stub.go
index 298d829f6fa6d..c901d4bb80abd 100644
--- a/src/net/cgo_stub.go
+++ b/src/net/cgo_stub.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//go:build !cgo || netgo
+//go:build (!cgo && !darwin) || netgo
 
 package net
 
diff --git a/src/net/cgo_unix.go b/src/net/cgo_unix.go
index a94472733815f..4ca0fbee73ea2 100644
--- a/src/net/cgo_unix.go
+++ b/src/net/cgo_unix.go
@@ -7,7 +7,7 @@
 // Instead of C.foo it uses _C_foo, which is defined in either
 // cgo_unix_cgo.go or cgo_unix_syscall.go
 
-//go:build cgo && !netgo && unix
+//go:build !netgo && ((cgo && unix) || darwin)
 
 package net
 
diff --git a/src/net/cgo_unix_syscall.go b/src/net/cgo_unix_syscall.go
index 7170f14c466bd..c5c27967b1350 100644
--- a/src/net/cgo_unix_syscall.go
+++ b/src/net/cgo_unix_syscall.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//go:build cgo && !netgo && darwin
+//go:build !netgo && darwin
 
 package net
 
diff --git a/src/net/cgo_unix_test.go b/src/net/cgo_unix_test.go
index af9f9dc3f2c8f..86726dd7e5c70 100644
--- a/src/net/cgo_unix_test.go
+++ b/src/net/cgo_unix_test.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//go:build cgo && !netgo && unix
+//go:build (cgo || darwin) && !netgo && unix
 
 package net
 
diff --git a/src/net/netgo.go b/src/net/netgo.go
index 75baa880354c5..e478c88b30358 100644
--- a/src/net/netgo.go
+++ b/src/net/netgo.go
@@ -4,9 +4,9 @@
 
 // Default netGo to true if the netgo build tag is being used, or the
 // C library DNS routines are not available. Note that the C library
-// routines are always available on Windows.
+// routines are always available on Darwin and Windows.
 
-//go:build netgo || (!cgo && !windows)
+//go:build netgo || (!cgo && !darwin && !windows)
 
 package net
 
diff --git a/src/net/netgo_unix_test.go b/src/net/netgo_unix_test.go
index 019772aa6aaab..5ddebab143759 100644
--- a/src/net/netgo_unix_test.go
+++ b/src/net/netgo_unix_test.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//go:build (!cgo || netgo) && (darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris)
+//go:build (!cgo || netgo) && (dragonfly || freebsd || linux || netbsd || openbsd || solaris)
 
 package net