diff --git a/CMakeLists.txt b/CMakeLists.txt
index c6b97dd1c..fd269dd90 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -782,7 +782,7 @@ option(WITH_LBFGS
         "interface  with lbfgs" ON)
 
 if (WITH_LBFGS)
-    add_subDIRECTORY(packages/yap-lbfgs)
+#    add_subDIRECTORY(packages/yap-lbfgs)
 endif ()
 
 
diff --git a/pl/meta.yap b/pl/meta.yap
index 0930c138c..e2a8cbaba 100644
--- a/pl/meta.yap
+++ b/pl/meta.yap
@@ -425,7 +425,6 @@ meta_predicate(P) :-
     ->
      O = G
     ;
-    stop_low_level_trace,
      O = M:G
     ).
 */