cpp/cmake_modules/google-cloud-cpp-openssl4-compatibility.patch

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diff --git a/google/cloud/internal/openssl/parse_service_account_p12_file.cc b/google/cloud/internal/openssl/parse_service_account_p12_file.cc
index bb0462dcf0..9dfb59750b 100644
--- a/google/cloud/internal/openssl/parse_service_account_p12_file.cc
+++ b/google/cloud/internal/openssl/parse_service_account_p12_file.cc
@@ -85,7 +85,7 @@ StatusOr<ServiceAccountCredentialsInfo> ParseServiceAccountP12File(
   }
 
   // This is automatically deleted by `cert`.
-  X509_NAME* name = X509_get_subject_name(cert.get());
+  auto* name = X509_get_subject_name(cert.get());
 
   std::string service_account_id = [&name]() -> std::string {
     auto openssl_free = [](void* addr) { OPENSSL_free(addr); };