1 files changed, 19 insertions, 0 deletions
diff --git a/src/os/user/getgrouplist_syscall.go b/src/os/user/getgrouplist_syscall.go
new file mode 100644
index 0000000..41b64fc
--- /dev/null
+++ b/src/os/user/getgrouplist_syscall.go
@@ -0,0 +1,19 @@
+// 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.
+
+//go:build !osusergo && darwin
+
+package user
+
+import (
+	"internal/syscall/unix"
+)
+
+func getGroupList(name *_C_char, userGID _C_gid_t, gids *_C_gid_t, n *_C_int) _C_int {
+	err := unix.Getgrouplist(name, userGID, gids, n)
+	if err != nil {
+		return -1
+	}
+	return 0
+}