From d482482f52272d7eaa1752e2cff51835feb6fbae Mon Sep 17 00:00:00 2001
From: Gaetan Lepage <gaetan@glepage.com>
Date: Sun, 7 Dec 2025 16:26:16 +0000
Subject: [PATCH] fix(cmake): do not disable feature if option
 GOOGLE_CLOUD_CPP_ENABLE_* does not exist

---
 cmake/GoogleCloudCppFeatures.cmake | 1 +
 1 file changed, 1 insertion(+)

diff --git a/cmake/GoogleCloudCppFeatures.cmake b/cmake/GoogleCloudCppFeatures.cmake
index c5ec33d3fba0c..a3cb6c41c58b1 100644
--- a/cmake/GoogleCloudCppFeatures.cmake
+++ b/cmake/GoogleCloudCppFeatures.cmake
@@ -372,6 +372,7 @@ macro (google_cloud_cpp_enable_cleanup)
     foreach (library IN LISTS GOOGLE_CLOUD_CPP_LEGACY_FEATURES)
         string(TOUPPER "GOOGLE_CLOUD_CPP_ENABLE_${library}" feature_flag)
         if ("${library}" IN_LIST GOOGLE_CLOUD_CPP_ENABLE
+            AND DEFINED ${feature_flag}
             AND NOT "${${feature_flag}}")
             message(
                 WARNING "Using ${feature_flag} is discouraged. Please use the"