Disable blocks support in C++ mode.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57334 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Driver/clang.cpp b/Driver/clang.cpp
index 8e5bca2..f415de1 100644
--- a/Driver/clang.cpp
+++ b/Driver/clang.cpp
@@ -487,6 +487,9 @@
   } else {
     Options.NeXTRuntime = Target->useNeXTRuntimeAsDefault();
   }
+
+  if (Options.CPlusPlus)
+    Options.Blocks = 0;   
 }
 
 static llvm::cl::opt<bool>