From 9bdc48e14ba733ec49c7b6565b53c9930f07e1df Mon Sep 17 00:00:00 2001
From: Patrick Gartung <gartung@fnal.gov>
Date: Thu, 1 May 2014 14:56:03 -0500
Subject: [PATCH] temporary work around for clang 3.4 which is not parsing
 [[cms::thread_guard(" var ")]] correctly and causing an error from clang

---
 MagneticField/Engine/interface/MagneticField.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/MagneticField/Engine/interface/MagneticField.h b/MagneticField/Engine/interface/MagneticField.h
index cec1bcf872397..5529904f1cfcd 100644
--- a/MagneticField/Engine/interface/MagneticField.h
+++ b/MagneticField/Engine/interface/MagneticField.h
@@ -62,7 +62,9 @@ class MagneticField
   //nominal field value 
   virtual int computeNominalValue() const;
   mutable std::atomic<char> nominalValueCompiuted;
-  [[cms::thread_guard("nominalValueCompiuted")]] mutable int theNominalValue;
+//  [[cms::thread_guard("nominalValueCompiuted")]] mutable int theNominalValue;
+//  PG temporary fix for clang 3.4 which is not parsing thread_guard correctly
+  [[cms::thread_safe]] mutable int theNominalValue;
   enum FooStates {kUnset, kSetting, kSet};
 };