From 05e9f893a62da9273d86e12d6abb4673f3f3a737 Mon Sep 17 00:00:00 2001
From: Chinmay Garde <chinmaygarde@google.com>
Date: Mon, 6 Dec 2021 14:05:29 -0800
Subject: [PATCH] Add missing availability check for macOS 10.12.

---
 impeller/renderer/backend/metal/device_buffer_mtl.mm | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/impeller/renderer/backend/metal/device_buffer_mtl.mm b/impeller/renderer/backend/metal/device_buffer_mtl.mm
index 5fdb783431bec..1a94831fe35d8 100644
--- a/impeller/renderer/backend/metal/device_buffer_mtl.mm
+++ b/impeller/renderer/backend/metal/device_buffer_mtl.mm
@@ -97,8 +97,10 @@
   if (label.empty()) {
     return false;
   }
-  [buffer_ addDebugMarker:@(label.c_str())
-                    range:NSMakeRange(range.offset, range.length)];
+  if (@available(macOS 10.12, *)) {
+    [buffer_ addDebugMarker:@(label.c_str())
+                      range:NSMakeRange(range.offset, range.length)];
+  }
   return true;
 }