diff --git a/indra/cmake/00-Common.cmake b/indra/cmake/00-Common.cmake
index 4b2f9dc4b..ef5b14b80 100644
--- a/indra/cmake/00-Common.cmake
+++ b/indra/cmake/00-Common.cmake
@@ -164,6 +164,11 @@ if (LINUX)
     add_definitions(-Wno-parentheses)
   endif (${CXX_VERSION} GREATER 429)
 
+  #gcc 4.6 has a new spammy warning
+  if(NOT ${CXX_VERSION} LESS 460)
+    add_definitions(-Wno-unused-but-set-variable)
+  endif (NOT ${CXX_VERSION} LESS 460)
+
   # End of hacks.
 
   add_definitions(
diff --git a/indra/llcommon/llsdserialize.cpp b/indra/llcommon/llsdserialize.cpp
index 48423934c..b7f28d365 100644
--- a/indra/llcommon/llsdserialize.cpp
+++ b/indra/llcommon/llsdserialize.cpp
@@ -1447,9 +1447,12 @@ S32 LLSDBinaryFormatter::format(const LLSD& data, std::ostream& ostr, U32 option
 	}
 
 	case LLSD::TypeUUID:
+	{
 		ostr.put('u');
-		ostr.write((const char*)(&(data.asUUID().mData)), UUID_BYTES);
+		LLUUID d = data.asUUID();
+		ostr.write((const char*)(&(d.mData)), UUID_BYTES);
 		break;
+	}
 
 	case LLSD::TypeString:
 		ostr.put('s');
diff --git a/indra/llinventory/llparcel.cpp b/indra/llinventory/llparcel.cpp
index 13c062e38..52ee7e3bf 100644
--- a/indra/llinventory/llparcel.cpp
+++ b/indra/llinventory/llparcel.cpp
@@ -605,13 +605,13 @@ BOOL LLParcel::importAccessEntry(std::istream& input_stream, LLAccessEntry* entr
         }
         else if ("time" == keyword)
         {
-            S32 when;
+            S32 when = -1;
             LLStringUtil::convertToS32(value, when);
             entry->mTime = when;
         }
         else if ("flags" == keyword)
         {
-            U32 setting;
+            U32 setting = 0xFFFFFFFF;
             LLStringUtil::convertToU32(value, setting);
             entry->mFlags = setting;
         }
diff --git a/indra/llui/llfunctorregistry.h b/indra/llui/llfunctorregistry.h
index 8864f7af1..7c03f2f69 100644
--- a/indra/llui/llfunctorregistry.h
+++ b/indra/llui/llfunctorregistry.h
@@ -75,7 +75,6 @@ public:
 	bool registerFunctor(const std::string& name, ResponseFunctor f)
 	{
 		bool retval = true;
-		typename FunctorMap::iterator it = mMap.find(name);
 		if (mMap.count(name) == 0)
 		{
 			mMap[name] = f;
@@ -102,7 +101,6 @@ public:
 
 	FUNCTOR_TYPE getFunctor(const std::string& name)
 	{
-		typename FunctorMap::iterator it = mMap.find(name);
 		if (mMap.count(name) != 0)
 		{
 			return mMap[name];