diff --git a/src/CompHash.cc b/src/CompHash.cc
index e793a104e0..b2eb08c589 100644
--- a/src/CompHash.cc
+++ b/src/CompHash.cc
@@ -207,7 +207,6 @@ char* CompositeHash::SingleValHash(int type_check, char* kp0,
 			unsigned int* kp = AlignAndPadType<unsigned int>(kp0);
 			VectorVal* vv = v->AsVectorVal();
 			VectorType* vt = v->Type()->AsVectorType();
-			vector<Val*>* indices = v->AsVector();
 			*kp = vv->Size();
 			kp1 = reinterpret_cast<char*>(kp+1);
 			for ( unsigned int i = 0; i < vv->Size(); ++i )
diff --git a/src/Debug.cc b/src/Debug.cc
index 8cf2e38596..b5aaf91f9f 100644
--- a/src/Debug.cc
+++ b/src/Debug.cc
@@ -194,8 +194,7 @@ static void parse_function_name(vector<ParseLocationRec>& result,
 		return;
 		}
 
-	FuncType* ftype;
-	if ( ! (ftype = id->Type()->AsFuncType()) )
+	if ( ! id->Type()->AsFuncType() )
 		{
 		debug_msg("Function %s not declared.\n", id->Name());
 		plr.type = plrUnknown;
diff --git a/src/PersistenceSerializer.cc b/src/PersistenceSerializer.cc
index d9baad05bb..4c6f72d815 100644
--- a/src/PersistenceSerializer.cc
+++ b/src/PersistenceSerializer.cc
@@ -400,8 +400,6 @@ bool PersistenceSerializer::RunSerialization(SerialStatus* status)
 
 		while ( (id = status->ids->NextEntry(status->id_cookie)) )
 			{
-			ID* g = global_scope()->Lookup(id->Name());
-
 			if ( ! DoIDSerialization(status, id) )
 				return false;
 
diff --git a/src/Stmt.cc b/src/Stmt.cc
index 28f29aba0b..d879c598d2 100644
--- a/src/Stmt.cc
+++ b/src/Stmt.cc
@@ -1218,9 +1218,8 @@ Val* ForStmt::DoExec(Frame* f, Val* v, stmt_flow_type& flow) const
 		const PDict(TableEntryVal)* loop_vals = tv->AsTable();
 
 		HashKey* k;
-		TableEntryVal* iter_val;
 		IterCookie* c = loop_vals->InitForIteration();
-		while ( (iter_val = loop_vals->NextEntry(k, c)) )
+		while ( loop_vals->NextEntry(k, c) )
 			{
 			ListVal* ind_lv = tv->RecoverIndex(k);
 			delete k;
diff --git a/src/Val.cc b/src/Val.cc
index 9d1b27b333..30c3797253 100644
--- a/src/Val.cc
+++ b/src/Val.cc
@@ -1656,8 +1656,7 @@ int TableVal::RemoveFrom(Val* val) const
 	IterCookie* c = tbl->InitForIteration();
 
 	HashKey* k;
-	TableEntryVal* v;
-	while ( (v = tbl->NextEntry(k, c)) )
+	while ( tbl->NextEntry(k, c) )
 		{
 		Val* index = RecoverIndex(k);
 
@@ -1955,8 +1954,7 @@ ListVal* TableVal::ConvertToList(TypeTag t) const
 	IterCookie* c = tbl->InitForIteration();
 
 	HashKey* k;
-	TableEntryVal* v;
-	while ( (v = tbl->NextEntry(k, c)) )
+	while ( tbl->NextEntry(k, c) )
 		{
 		ListVal* index = table_hash->RecoverVals(k);