diff --git a/lib/CompilerDriver/Tool.cpp b/lib/CompilerDriver/Tool.cpp
index e704dd9..7953dd2 100644
--- a/lib/CompilerDriver/Tool.cpp
+++ b/lib/CompilerDriver/Tool.cpp
@@ -14,11 +14,17 @@
 #include "llvm/CompilerDriver/BuiltinOptions.h"
 #include "llvm/CompilerDriver/Tool.h"
 
+#include "llvm/ADT/StringExtras.h"
 #include "llvm/System/Path.h"
 
 using namespace llvm;
 using namespace llvmc;
 
+// SplitString is used by derived Tool classes.
+typedef void (*SplitStringFunPtr)(const std::string&,
+                                  std::vector<std::string>&, const char*);
+SplitStringFunPtr ForceLinkageSplitString = &llvm::SplitString;
+
 namespace {
   sys::Path MakeTempFile(const sys::Path& TempDir, const std::string& BaseName,
                          const std::string& Suffix) {