[build] Fix objc boringssl build backport (#40689)

stanley-cheung · web-flow · commit 093085cc925e · 2025-09-15T09:21:36.000-07:00
Backport #40688 to `v1.75.x` branch
diff --git a/src/core/tsi/ssl_transport_security.cc b/src/core/tsi/ssl_transport_security.cc
@@ -1338,7 +1338,8 @@ absl::Status ConfigureSpiffeRoots(
     return absl::InvalidArgumentError(
         "spiffe: root stack in the SPIFFE Bundle Map is nullptr.");
   }
-#if OPENSSL_VERSION_NUMBER >= 0x10100000L
+// the boringSSL library objective-C used did not have this function defined
+#if OPENSSL_VERSION_NUMBER >= 0x10100000L && !defined(OPENSSL_APPLE)
   X509_STORE_CTX_set0_trusted_stack(ctx, *root_stack);
 #else
   X509_STORE_CTX_trusted_stack(ctx, *root_stack);
