From edd11972c4873583495f58e08693bd0e79f7480c Mon Sep 17 00:00:00 2001
From: Giancarlo Panizzo <giancarlo.panizzo@cern.ch>
Date: Wed, 8 Jul 2020 19:34:39 +0000
Subject: [PATCH] update Pythia8_i.cxx: fix redefinition of PYTHIA8_CONVERSION

---
 Generators/Pythia8_i/src/Pythia8_i.cxx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Generators/Pythia8_i/src/Pythia8_i.cxx b/Generators/Pythia8_i/src/Pythia8_i.cxx
index fc1afb074c0..f3e7869bae1 100644
--- a/Generators/Pythia8_i/src/Pythia8_i.cxx
+++ b/Generators/Pythia8_i/src/Pythia8_i.cxx
@@ -36,11 +36,11 @@ using boost::assign::operator+=;
   #undef PYTHIA8_NWEIGHTS
   #undef PYTHIA8_WEIGHT
   #undef PYTHIA8_WLABEL
-  #undef PYTHIA8_CONVERSION
   #define PYTHIA8_NWEIGHTS nVariationGroups
   #define PYTHIA8_WEIGHT getGroupWeight
   #define PYTHIA8_WLABEL getGroupName
   #if PYTHIA_VERSION_INTEGER < 8244
+    #undef PYTHIA8_CONVERSION
     #define PYTHIA8_CONVERSION 1.0e9
   #endif 
   #endif
-- 
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