--- a/src/ChangeLog	Thu Jan 13 08:04:23 2011 -0500
+++ b/src/ChangeLog	Thu Jan 13 10:00:13 2011 -0500
@@ -1,3 +1,13 @@
+2011-01-13  John W. Eaton  <jwe@octave.org>
+
+	* base-list.h (class octave_base_list): Provide explicit
+	default and copy construtors, assignment operator, and destructor.
+	* load-path.h (load_path::dir_info::class_info): Likewise.
+
+	* load-path.h (load_path::dir_info::dir_info): Initialize all
+	members in initializaition list.
+	* lex.h (lexical_feedback::lexical_feedback): Likewise.
+
 2011-01-13  John W. Eaton  <jwe@octave.org>
 
 	* cutils.h: New file.

--- a/src/base-list.h	Thu Jan 13 08:04:23 2011 -0500
+++ b/src/base-list.h	Thu Jan 13 10:00:13 2011 -0500
@@ -86,6 +86,23 @@
   // For backward compatibility.
   void append (const elt_type& s) { lst.push_back (s); }
 
+protected:
+
+  octave_base_list (void) : lst () { }
+
+  octave_base_list (const octave_base_list& bl) : lst (bl.lst) { }
+
+  octave_base_list& operator = (const octave_base_list& bl)
+    {
+      if (this != &bl)
+        {
+          lst = bl.lst;
+        }
+      return *this;
+    }
+
+  ~octave_base_list (void) { }
+
 private:
 
   std::list<elt_type> lst;

--- a/src/lex.h	Thu Jan 13 08:04:23 2011 -0500
+++ b/src/lex.h	Thu Jan 13 10:00:13 2011 -0500
@@ -57,7 +57,20 @@
 {
 public:
 
-  lexical_feedback (void) { init (); }
+  lexical_feedback (void)
+    : bracketflag (0), braceflag (0), looping (0),
+      convert_spaces_to_comma (true), at_beginning_of_statement (true),
+      defining_func (0), looking_at_function_handle (false),
+      looking_at_return_list (false), looking_at_parameter_list (false),
+      looking_at_decl_list (false), looking_at_initializer_expression (false),
+      looking_at_matrix_or_assign_lhs (false), looking_at_object_index (),
+      looking_for_object_index (false), looking_at_indirect_ref (false),
+      parsed_function_name (), parsing_class_method (false),
+      maybe_classdef_get_set_method (false), parsing_classdef (false),
+      quote_is_transpose (false), pending_local_variables ()
+    {
+      init ();
+    }
 
   ~lexical_feedback (void) { }
 

--- a/src/load-path.h	Thu Jan 13 08:04:23 2011 -0500
+++ b/src/load-path.h	Thu Jan 13 10:00:13 2011 -0500
@@ -261,6 +261,24 @@
 
     struct class_info
     {
+      class_info (void) : method_file_map (), private_file_map () { }
+
+      class_info (const class_info& ci)
+        : method_file_map (ci.method_file_map),
+          private_file_map (ci.private_file_map) { }
+
+      class_info& operator = (const class_info& ci)
+      {
+        if (this != &ci)
+          {
+            method_file_map = ci.method_file_map;
+            private_file_map = ci.private_file_map;
+          }
+        return *this;
+      }
+
+      ~class_info (void) { }
+
       fcn_file_map_type method_file_map;
       fcn_file_map_type private_file_map;
     };
@@ -274,9 +292,19 @@
     // This default constructor is only provided so we can create a
     // std::map of dir_info objects.  You should not use this
     // constructor for any other purpose.
-    dir_info (void) { }
+    dir_info (void)
+      : dir_name (), abs_dir_name (), is_relative (false),
+        dir_mtime (), dir_time_last_checked (), all_files (),
+        fcn_files (), private_file_map (), method_file_map ()
+      { }
 
-    dir_info (const std::string& d) : dir_name (d) { initialize (); }
+    dir_info (const std::string& d)
+      : dir_name (d), abs_dir_name (), is_relative (false),
+        dir_mtime (), dir_time_last_checked (), all_files (),
+        fcn_files (), private_file_map (), method_file_map ()
+    {
+      initialize ();
+    }
 
     dir_info (const dir_info& di)
       : dir_name (di.dir_name), abs_dir_name (di.abs_dir_name),