--- /dev/null
+//===- llvm/Transforms/Linker.h - Module Linker Interface --------*- C++ -*--=//
+//
+// This file defines the interface to the module linker.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_TRANSFORMATIONS_LINKER_H
+#define LLVM_TRANSFORMATIONS_LINKER_H
+
+#include <string>
+class Module;
+
+// LinkModules - This function links two modules together, with the resulting
+// left module modified to be the composite of the two input modules. If an
+// error occurs, true is returned and ErrorMsg (if not null) is set to indicate
+// the problem.
+//
+bool LinkModules(Module *Dest, const Module *Src, string *ErrorMsg = 0);
+
+#endif
--- /dev/null
+//===- llvm/Transforms/Linker.h - Module Linker Interface --------*- C++ -*--=//
+//
+// This file defines the interface to the module linker.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_TRANSFORMATIONS_LINKER_H
+#define LLVM_TRANSFORMATIONS_LINKER_H
+
+#include <string>
+class Module;
+
+// LinkModules - This function links two modules together, with the resulting
+// left module modified to be the composite of the two input modules. If an
+// error occurs, true is returned and ErrorMsg (if not null) is set to indicate
+// the problem.
+//
+bool LinkModules(Module *Dest, const Module *Src, string *ErrorMsg = 0);
+
+#endif
--- /dev/null
+//===- llvm/Transforms/Linker.h - Module Linker Interface --------*- C++ -*--=//
+//
+// This file defines the interface to the module linker.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_TRANSFORMATIONS_LINKER_H
+#define LLVM_TRANSFORMATIONS_LINKER_H
+
+#include <string>
+class Module;
+
+// LinkModules - This function links two modules together, with the resulting
+// left module modified to be the composite of the two input modules. If an
+// error occurs, true is returned and ErrorMsg (if not null) is set to indicate
+// the problem.
+//
+bool LinkModules(Module *Dest, const Module *Src, string *ErrorMsg = 0);
+
+#endif