diff --git a/include/llvm-c/ExecutionEngine.h b/include/llvm-c/ExecutionEngine.h
index 50fdb6bd735..cf3565c217e 100644
--- a/include/llvm-c/ExecutionEngine.h
+++ b/include/llvm-c/ExecutionEngine.h
@@ -171,6 +171,15 @@ void *LLVMGetPointerToGlobal(LLVMExecutionEngineRef EE, LLVMValueRef Global);
 
 /*===-- Operations on memory managers -------------------------------------===*/
 
+typedef uint8_t *(*LLVMMemoryManagerAllocateCodeSectionCallback)(void *Opaque,
+						    uintptr_t Size, unsigned Alignment,
+						    unsigned SectionID);
+typedef uint8_t *(*LLVMMemoryManagerAllocateDataSectionCallback)(void *Opaque,
+						    uintptr_t Size, unsigned Alignment,
+						    unsigned SectionID, LLVMBool IsReadOnly);
+typedef LLVMBool (*LLVMMemoryManagerFinalizeMemoryCallback)(void *Opaque, char **ErrMsg);
+typedef void (*LLVMMemoryManagerDestroyCallback)(void *Opaque);
+
 /**
  * Create a simple custom MCJIT memory manager. This memory manager can
  * intercept allocations in a module-oblivious way. This will return NULL
@@ -184,14 +193,10 @@ void *LLVMGetPointerToGlobal(LLVMExecutionEngineRef EE, LLVMValueRef Global);
  */
 LLVMMCJITMemoryManagerRef LLVMCreateSimpleMCJITMemoryManager(
   void *Opaque,
-  uint8_t *(*AllocateCodeSection)(void *Opaque,
-                                  uintptr_t Size, unsigned Alignment,
-                                  unsigned SectionID),
-  uint8_t *(*AllocateDataSection)(void *Opaque,
-                                  uintptr_t Size, unsigned Alignment,
-                                  unsigned SectionID, LLVMBool IsReadOnly),
-  LLVMBool (*FinalizeMemory)(void *Opaque, char **ErrMsg),
-  void (*Destroy)(void *Opaque));
+  LLVMMemoryManagerAllocateCodeSectionCallback AllocateCodeSection,
+  LLVMMemoryManagerAllocateDataSectionCallback AllocateDataSection,
+  LLVMMemoryManagerFinalizeMemoryCallback FinalizeMemory,
+  LLVMMemoryManagerDestroyCallback Destory);
 
 void LLVMDisposeMCJITMemoryManager(LLVMMCJITMemoryManagerRef MM);
 
diff --git a/lib/ExecutionEngine/ExecutionEngineBindings.cpp b/lib/ExecutionEngine/ExecutionEngineBindings.cpp
index 88e73bf253e..94144457821 100644
--- a/lib/ExecutionEngine/ExecutionEngineBindings.cpp
+++ b/lib/ExecutionEngine/ExecutionEngineBindings.cpp
@@ -339,14 +339,10 @@ void *LLVMGetPointerToGlobal(LLVMExecutionEngineRef EE, LLVMValueRef Global) {
 namespace {
 
 struct SimpleBindingMMFunctions {
-  uint8_t *(*AllocateCodeSection)(void *Opaque,
-                                  uintptr_t Size, unsigned Alignment,
-                                  unsigned SectionID);
-  uint8_t *(*AllocateDataSection)(void *Opaque,
-                                  uintptr_t Size, unsigned Alignment,
-                                  unsigned SectionID, LLVMBool IsReadOnly);
-  LLVMBool (*FinalizeMemory)(void *Opaque, char **ErrMsg);
-  void (*Destroy)(void *Opaque);
+  LLVMMemoryManagerAllocateCodeSectionCallback AllocateCodeSection;
+  LLVMMemoryManagerAllocateDataSectionCallback AllocateDataSection;
+  LLVMMemoryManagerFinalizeMemoryCallback FinalizeMemory;
+  LLVMMemoryManagerDestroyCallback Destroy;
 };
 
 class SimpleBindingMemoryManager : public RTDyldMemoryManager {
@@ -415,14 +411,10 @@ bool SimpleBindingMemoryManager::finalizeMemory(std::string *ErrMsg) {
 
 LLVMMCJITMemoryManagerRef LLVMCreateSimpleMCJITMemoryManager(
   void *Opaque,
-  uint8_t *(*AllocateCodeSection)(void *Opaque,
-                                  uintptr_t Size, unsigned Alignment,
-                                  unsigned SectionID),
-  uint8_t *(*AllocateDataSection)(void *Opaque,
-                                  uintptr_t Size, unsigned Alignment,
-                                  unsigned SectionID, LLVMBool IsReadOnly),
-  LLVMBool (*FinalizeMemory)(void *Opaque, char **ErrMsg),
-  void (*Destroy)(void *Opaque)) {
+  LLVMMemoryManagerAllocateCodeSectionCallback AllocateCodeSection,
+  LLVMMemoryManagerAllocateDataSectionCallback AllocateDataSection,
+  LLVMMemoryManagerFinalizeMemoryCallback FinalizeMemory,
+  LLVMMemoryManagerDestroyCallback Destroy) {
   
   if (!AllocateCodeSection || !AllocateDataSection || !FinalizeMemory ||
       !Destroy)