1 files changed, 7 insertions, 0 deletions
diff --git a/lib/Driver/Tools.h b/lib/Driver/Tools.h
index aa15f3551c..0fc0690db5 100644
--- a/lib/Driver/Tools.h
+++ b/lib/Driver/Tools.h
@@ -18,6 +18,8 @@
 #include "llvm/Support/Compiler.h"
 
 namespace clang {
+  class ObjCRuntime;
+
 namespace driver {
   class Driver;
 
@@ -44,6 +46,11 @@ namespace tools {
     void AddX86TargetArgs(const ArgList &Args, ArgStringList &CmdArgs) const;
     void AddHexagonTargetArgs (const ArgList &Args, ArgStringList &CmdArgs) const;
 
+    enum RewriteKind { RK_None, RK_Fragile, RK_NonFragile };
+
+    ObjCRuntime AddObjCRuntimeArgs(const ArgList &args, ArgStringList &cmdArgs,
+                                   RewriteKind rewrite) const;
+
   public:
     Clang(const ToolChain &TC) : Tool("clang", "clang frontend", TC) {}