From 740e45412b55d03568f0d3a7be1bdaca18d09053 Mon Sep 17 00:00:00 2001
From: Rintaro Ishizaki <rishizaki@apple.com>
Date: Tue, 11 Mar 2025 13:39:04 -0700
Subject: [PATCH] [CMake] Fix package CMO capability checking logic

Package CMO requires '-enable-library-evolution' in 6.1+ compilers.
---
 cmake/modules/SwiftCompilerCapability.cmake | 1 +
 1 file changed, 1 insertion(+)

diff --git a/cmake/modules/SwiftCompilerCapability.cmake b/cmake/modules/SwiftCompilerCapability.cmake
index 7a00b319aae..6ae87e0bbaf 100644
--- a/cmake/modules/SwiftCompilerCapability.cmake
+++ b/cmake/modules/SwiftCompilerCapability.cmake
@@ -51,6 +51,7 @@ function(swift_get_package_cmo_support out_var)
   # > 6.0 : Fixed feature.
   swift_supports_compiler_arguments(result
     -package-name my-package
+    -enable-library-evolution
     -Xfrontend -package-cmo
     -Xfrontend -allow-non-resilient-access
   )