From e16a505e04ca2b369e919cb1f3c033db66905067 Mon Sep 17 00:00:00 2001
From: heckflosse <heckflosse67@gmx.de>
Date: Mon, 22 Feb 2016 19:28:03 +0100
Subject: [PATCH] Fix broken build without OpenMP

---
 rtengine/opthelper.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/rtengine/opthelper.h b/rtengine/opthelper.h
index 555ea587c..bee97f6b2 100644
--- a/rtengine/opthelper.h
+++ b/rtengine/opthelper.h
@@ -69,7 +69,7 @@
         #define ALIGNED64
         #define ALIGNED16
     #endif
-    #ifndef __clang__
-        #define _RT_NESTED_OPENMP _OPENMP
+    #if !defined(__clang__) && defined _OPENMP
+        #define _RT_NESTED_OPENMP
     #endif
 #endif