Several changes:

 - Wt::Dbo WLogger: fix infinite recursion
 - SqlQueryParse: require C++14 for X3 parser

Author: RockinRoel

src/Wt/Dbo/SqlQueryParse.C

@@ -12,7 +12,7 @@
 
 #include <boost/version.hpp>
 
-#if !defined(WT_NO_SPIRIT) && BOOST_VERSION >= 106900
+#if !defined(WT_NO_SPIRIT) && defined(WT_CXX14) && BOOST_VERSION >= 106900
 #  define X3_QUERY_PARSE
 #elif !defined(WT_NO_SPIRIT) && BOOST_VERSION >= 104100
 #  define SPIRIT_QUERY_PARSE

src/Wt/WLogger.C

@@ -410,7 +410,7 @@ bool logging(const std::string &type,
   if (customLogger_)
     return customLogger_->logging(type, scope);
 
-  return logging(type, scope);
+  return true;
 #else // WT_DBO_LOGGER
   WebSession *session = WebSession::instance();