1 files changed, 5 insertions, 0 deletions
diff --git a/include/clang/Basic/LangOptions.h b/include/clang/Basic/LangOptions.h
index b49d500470..818ccda48b 100644
--- a/include/clang/Basic/LangOptions.h
+++ b/include/clang/Basic/LangOptions.h
@@ -59,6 +59,9 @@ public:
   unsigned MathErrno         : 1; // Math functions must respect errno
                                   // (modulo the platform support).
 
+  unsigned OverflowChecking  : 1; // Extension to call a handler function when
+                                  // integer arithmetic overflows.
+
   unsigned HeinousExtensions : 1; // Extensions that we really don't like and
                                   // may be ripped out at any time.
 private:
@@ -87,6 +90,8 @@ public:
     EmitAllDecls = 0;
     MathErrno = 1;
 
+    OverflowChecking = 0;
+
     InstantiationDepth = 99;
   }