Index: cfe/trunk/include/clang/Tooling/AllTUsExecution.h
===================================================================
--- cfe/trunk/include/clang/Tooling/AllTUsExecution.h
+++ cfe/trunk/include/clang/Tooling/AllTUsExecution.h
@@ -71,6 +71,7 @@
   unsigned ThreadCount;
 };
 
+extern llvm::cl::opt<unsigned> ExecutorConcurrency;
 extern llvm::cl::opt<std::string> Filter;
 
 } // end namespace tooling
Index: cfe/trunk/lib/Tooling/AllTUsExecution.cpp
===================================================================
--- cfe/trunk/lib/Tooling/AllTUsExecution.cpp
+++ cfe/trunk/lib/Tooling/AllTUsExecution.cpp
@@ -147,7 +147,7 @@
   return llvm::Error::success();
 }
 
-static llvm::cl::opt<unsigned> ExecutorConcurrency(
+llvm::cl::opt<unsigned> ExecutorConcurrency(
     "execute-concurrency",
     llvm::cl::desc("The number of threads used to process all files in "
                    "parallel. Set to 0 for hardware concurrency. "