Index: include/llvm-c/TargetMachine.h
===================================================================
--- include/llvm-c/TargetMachine.h
+++ include/llvm-c/TargetMachine.h
@@ -137,6 +137,10 @@
   disposed with LLVMDisposeMessage. */
 char* LLVMGetDefaultTargetTriple(void);
 
+/** Normalize a target triple. The result needs to be disposed with
+  LLVMDisposeMessage. */
+char* LLVMNormalizeTargetTriple(char* triple);
+
 /** Get the host CPU as a string. The result needs to be disposed with
   LLVMDisposeMessage. */
 char* LLVMGetHostCPUName(void);
Index: lib/Target/TargetMachineC.cpp
===================================================================
--- lib/Target/TargetMachineC.cpp
+++ lib/Target/TargetMachineC.cpp
@@ -238,6 +238,10 @@
   return strdup(sys::getDefaultTargetTriple().c_str());
 }
 
+char *LLVMNormalizeTargetTriple(char* triple) {
+  return strdup(Triple::normalize(StringRef(triple)).c_str());
+}
+
 char *LLVMGetHostCPUName(void) {
   return strdup(sys::getHostCPUName().data());
 }