Don't define _BIG_ENDIAN for NetBSD/PowerPC.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134411 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Basic/Targets.cpp b/lib/Basic/Targets.cpp
index cc3dd0a..5bad668 100644
--- a/lib/Basic/Targets.cpp
+++ b/lib/Basic/Targets.cpp
@@ -674,7 +674,8 @@
   }
 
   // Target properties.
-  Builder.defineMacro("_BIG_ENDIAN");
+  if (getTriple().getOS() != llvm::Triple::NetBSD)
+    Builder.defineMacro("_BIG_ENDIAN");
   Builder.defineMacro("__BIG_ENDIAN__");
 
   // Subtarget options.