Merge r1914318 from trunk:

mod_ssl: Follow up to r1908537: Fix typo s/MODSSL_USE_ENGINE_API/MODSSL_HAVE_ENGINE_API/

Submitted by: ylavic
Reviewed by: ylavic, minfrin, jorton


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1915067 13f79535-47bb-0310-9956-ffa450edef68

modules/ssl/ssl_util.c

@@ -476,7 +476,7 @@ void ssl_util_thread_id_setup(apr_pool_t *p)
 
 int modssl_is_engine_id(const char *name)
 {
-#if MODSSL_USE_ENGINE_API
+#if MODSSL_HAVE_ENGINE_API
     /* ### Can handle any other special ENGINE key names here? */
     return strncmp(name, "pkcs11:", 7) == 0;
 #else