From b0cf8def70d19d165914a7735d1a8ec087979aaa Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Wed, 8 Apr 2026 18:21:11 +0000
Subject: [PATCH 1/2] Initial plan


From 3652a67d553d7b0e7edb2ca436fc321b024b6f66 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Wed, 8 Apr 2026 18:44:58 +0000
Subject: [PATCH 2/2] Add TARGET_APPLE to System.Private.CoreLib
 DefineConstants for Apple platforms

Agent-Logs-Url: https://github.com/dotnet/runtime/sessions/e2f3da2e-9a15-4070-88f0-5ba5d47cedfc

Co-authored-by: jkotas <6668460+jkotas@users.noreply.github.com>
---
 .../src/System.Private.CoreLib.Shared.projitems                  | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/libraries/System.Private.CoreLib/src/System.Private.CoreLib.Shared.projitems b/src/libraries/System.Private.CoreLib/src/System.Private.CoreLib.Shared.projitems
index 096397e4998e80..2db9af120d00cc 100644
--- a/src/libraries/System.Private.CoreLib/src/System.Private.CoreLib.Shared.projitems
+++ b/src/libraries/System.Private.CoreLib/src/System.Private.CoreLib.Shared.projitems
@@ -38,6 +38,7 @@
   <PropertyGroup>
     <DefineConstants Condition="'$(TargetsUnix)' == 'true'">$(DefineConstants);TARGET_UNIX</DefineConstants>
     <DefineConstants Condition="'$(TargetsWindows)' == 'true'">$(DefineConstants);TARGET_WINDOWS</DefineConstants>
+    <DefineConstants Condition="'$(IsApplePlatform)' == 'true'">$(DefineConstants);TARGET_APPLE</DefineConstants>
     <DefineConstants Condition="'$(TargetsOSX)' == 'true'">$(DefineConstants);TARGET_OSX</DefineConstants>
     <DefineConstants Condition="'$(TargetsMacCatalyst)' == 'true'">$(DefineConstants);TARGET_MACCATALYST</DefineConstants>
     <DefineConstants Condition="'$(TargetsiOS)' == 'true'">$(DefineConstants);TARGET_IOS</DefineConstants>