From bf9a8337246888bd80953e029edd16f03a6d4bb0 Mon Sep 17 00:00:00 2001
From: Matti Kortelainen <matti.kortelainen@cern.ch>
Date: Thu, 23 Oct 2014 09:36:27 +0200
Subject: [PATCH] Give G4cout to HepMC::GenEvent::print as a thread-safe
 ostream

---
 SimG4Core/Generators/src/Generator.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/SimG4Core/Generators/src/Generator.cc b/SimG4Core/Generators/src/Generator.cc
index d5b22d24f9b4d..53bcf484d3687 100644
--- a/SimG4Core/Generators/src/Generator.cc
+++ b/SimG4Core/Generators/src/Generator.cc
@@ -124,7 +124,7 @@ void Generator::HepMC2G4(const HepMC::GenEvent * evt_orig, G4Event * g4evt)
                                      (*(evt->vertices_begin()))->position().t());
 
   if(verbose > 0) {
-    evt->print();
+    evt->print(G4cout);
     LogDebug("SimG4CoreGenerator") << "Primary Vertex = (" 
 				   << vtx_->x() << "," 
 				   << vtx_->y() << ","