cmake: fix ECH detection in custom-patched OpenSSL

Typo found via #16352
Regression-from fd067bfb5b028ac41660decc5abb87f1cd093b6b #15596
Closes #16354

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 45c95f93e8e609fe8eeeaca1db3fbd29b233acd5..3af7844444f4b5d470cae9a45bc6ed71d686878f 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1020,7 +1020,7 @@ if(USE_ECH)
     endif()
     if(HAVE_BORINGSSL OR HAVE_AWSLC)
       curl_openssl_check_symbol_exists("SSL_set1_ech_config_list" "openssl/ssl.h" HAVE_SSL_SET1_ECH_CONFIG_LIST)
-    elseif(HAVE_OPENSSL)
+    elseif(USE_OPENSSL)
       curl_openssl_check_symbol_exists("SSL_set1_ech_config_list" "openssl/ech.h" HAVE_SSL_SET1_ECH_CONFIG_LIST)
     endif()
     if(HAVE_WOLFSSL_CTX_GENERATEECHCONFIG OR