diff --git a/lib/Sema/SemaChecking.cpp b/lib/Sema/SemaChecking.cpp
index 5d54ca3..9bddfdc 100644
--- a/lib/Sema/SemaChecking.cpp
+++ b/lib/Sema/SemaChecking.cpp
@@ -1268,7 +1268,7 @@
     StringRef String = Literal->getString();
     unsigned NumBytes = String.size();
     SmallVector<UTF16, 128> ToBuf(NumBytes);
-    const UTF8 *FromPtr = (UTF8 *)String.data();
+    const UTF8 *FromPtr = (const UTF8 *)String.data();
     UTF16 *ToPtr = &ToBuf[0];
     
     ConversionResult Result = ConvertUTF8toUTF16(&FromPtr, FromPtr + NumBytes,
diff --git a/lib/Sema/SemaDecl.cpp b/lib/Sema/SemaDecl.cpp
index d3ef15c..711ea4c 100644
--- a/lib/Sema/SemaDecl.cpp
+++ b/lib/Sema/SemaDecl.cpp
@@ -10182,7 +10182,7 @@
                 //   class subobject has more than one final overrider the
                 //   program is ill-formed.
                 Diag(Record->getLocation(), diag::err_multiple_final_overriders)
-                  << (NamedDecl *)M->first << Record;
+                  << (const NamedDecl *)M->first << Record;
                 Diag(M->first->getLocation(), 
                      diag::note_overridden_virtual_function);
                 for (OverridingMethods::overriding_iterator 
@@ -10190,7 +10190,7 @@
                        OMEnd = SO->second.end();
                      OM != OMEnd; ++OM)
                   Diag(OM->Method->getLocation(), diag::note_final_overrider)
-                    << (NamedDecl *)M->first << OM->Method->getParent();
+                    << (const NamedDecl *)M->first << OM->Method->getParent();
                 
                 Record->setInvalidDecl();
               }
diff --git a/lib/Sema/SemaDeclObjC.cpp b/lib/Sema/SemaDeclObjC.cpp
index f4d63fa..e800a6a 100644
--- a/lib/Sema/SemaDeclObjC.cpp
+++ b/lib/Sema/SemaDeclObjC.cpp
@@ -536,7 +536,7 @@
 
   // Check then save referenced protocols.
   if (NumProtoRefs) {
-    IDecl->setProtocolList((ObjCProtocolDecl**)ProtoRefs, NumProtoRefs,
+    IDecl->setProtocolList((ObjCProtocolDecl*const*)ProtoRefs, NumProtoRefs,
                            ProtoLocs, Context);
     IDecl->setEndOfDefinitionLoc(EndProtoLoc);
   }
@@ -678,7 +678,7 @@
 
   if (!err && NumProtoRefs ) {
     /// Check then save referenced protocols.
-    PDecl->setProtocolList((ObjCProtocolDecl**)ProtoRefs, NumProtoRefs,
+    PDecl->setProtocolList((ObjCProtocolDecl*const*)ProtoRefs, NumProtoRefs,
                            ProtoLocs, Context);
   }
 
@@ -845,11 +845,11 @@
   CurContext->addDecl(CDecl);
 
   if (NumProtoRefs) {
-    CDecl->setProtocolList((ObjCProtocolDecl**)ProtoRefs, NumProtoRefs, 
+    CDecl->setProtocolList((ObjCProtocolDecl*const*)ProtoRefs, NumProtoRefs, 
                            ProtoLocs, Context);
     // Protocols in the class extension belong to the class.
     if (CDecl->IsClassExtension())
-     IDecl->mergeClassExtensionProtocolList((ObjCProtocolDecl**)ProtoRefs, 
+     IDecl->mergeClassExtensionProtocolList((ObjCProtocolDecl*const*)ProtoRefs, 
                                             NumProtoRefs, Context); 
   }
 
diff --git a/lib/Sema/SemaType.cpp b/lib/Sema/SemaType.cpp
index 82dccfa..39d367f 100644
--- a/lib/Sema/SemaType.cpp
+++ b/lib/Sema/SemaType.cpp
@@ -636,7 +636,7 @@
     // "<proto1,proto2>" is an objc qualified ID with a missing id.
     if (DeclSpec::ProtocolQualifierListTy PQ = DS.getProtocolQualifiers()) {
       Result = Context.getObjCObjectType(Context.ObjCBuiltinIdTy,
-                                         (ObjCProtocolDecl**)PQ,
+                                         (ObjCProtocolDecl*const*)PQ,
                                          DS.getNumProtocolQualifiers());
       Result = Context.getObjCObjectPointerType(Result);
       break;
@@ -795,18 +795,18 @@
 
         if (DS.getNumProtocolQualifiers())
           Result = Context.getObjCObjectType(Result,
-                                             (ObjCProtocolDecl**) PQ,
+                                             (ObjCProtocolDecl*const*) PQ,
                                              DS.getNumProtocolQualifiers());
       } else if (Result->isObjCIdType()) {
         // id<protocol-list>
         Result = Context.getObjCObjectType(Context.ObjCBuiltinIdTy,
-                                           (ObjCProtocolDecl**) PQ,
+                                           (ObjCProtocolDecl*const*) PQ,
                                            DS.getNumProtocolQualifiers());
         Result = Context.getObjCObjectPointerType(Result);
       } else if (Result->isObjCClassType()) {
         // Class<protocol-list>
         Result = Context.getObjCObjectType(Context.ObjCBuiltinClassTy,
-                                           (ObjCProtocolDecl**) PQ,
+                                           (ObjCProtocolDecl*const*) PQ,
                                            DS.getNumProtocolQualifiers());
         Result = Context.getObjCObjectPointerType(Result);
       } else {