From 141f767694426b34c82c36dc9d92111d4a4a3dab Mon Sep 17 00:00:00 2001
From: Max Charlamb <44248479+max-charlamb@users.noreply.github.com>
Date: Wed, 10 Sep 2025 09:03:42 -0400
Subject: [PATCH] add GC_CONFIG_DRIVEN define to standalone GC builds

---
 src/coreclr/gc/CMakeLists.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/coreclr/gc/CMakeLists.txt b/src/coreclr/gc/CMakeLists.txt
index 38ac8c8601aab2..2d648a5d37ba74 100644
--- a/src/coreclr/gc/CMakeLists.txt
+++ b/src/coreclr/gc/CMakeLists.txt
@@ -137,6 +137,7 @@ if(FEATURE_STANDALONE_GC)
 
   add_definitions(-DFX_VER_INTERNALNAME_STR=clrgc.dll)
   add_definitions(-DVERIFY_HEAP)
+  add_definitions(-DGC_CONFIG_DRIVEN)
   if(CLR_CMAKE_HOST_APPLE)
     # The implementation of GCToOSInterface on Apple platforms makes use of non-POSIX
     # pthreads APIs, which by default are not included in the pthreads header