Fixed compiler warnings from gcc 4.0.2:

- Added empty constructors and virtual destructors to many classes and structs
- Removed some usage of the offsetof() macro to instead use C++ class pointers


configure.in:
  Added comment
ndb/include/ndbapi/NdbDictionary.hpp:
  Fixed compiler warnings from gcc 4.0.2
sql/field.cc:
  Fixed compiler warnings from gcc 4.0.2
sql/handler.h:
  Fixed compiler warnings from gcc 4.0.2
sql/item.h:
  Fixed compiler warnings from gcc 4.0.2
sql/item_cmpfunc.h:
  Fixed compiler warnings from gcc 4.0.2
sql/log_event.h:
  Fixed compiler warnings from gcc 4.0.2
sql/mysql_priv.h:
  Fixed compiler warnings from gcc 4.0.2
  For find_table_in_list I fixed it to use proper C++ class pointers instead of C style pointers
sql/opt_range.cc:
  Fixed compiler warnings from gcc 4.0.2
sql/parse_file.h:
  Fixed compiler warnings from gcc 4.0.2
sql/sp_rcontext.h:
  Fixed compiler warnings from gcc 4.0.2
sql/spatial.h:
  Fixed compiler warnings from gcc 4.0.2
sql/sql_base.cc:
  Fixed compiler warnings from gcc 4.0.2
sql/sql_cache.h:
  Fixed compiler warnings from gcc 4.0.2
sql/sql_class.h:
  Fixed compiler warnings from gcc 4.0.2
sql/sql_parse.cc:
  Fixed compiler warnings from gcc 4.0.2
  (Not pretty, but seams to work...)
sql/sql_select.h:
  Fixed compiler warnings from gcc 4.0.2
sql/sql_update.cc:
  Fixed compiler warnings from gcc 4.0.2
sql/table.h:
  Fixed compiler warnings from gcc 4.0.2
sql/tztime.cc:
  Fixed compiler warnings from gcc 4.0.2
sql/tztime.h:
  Fixed compiler warnings from gcc 4.0.2

1 files changed, 3 insertions, 0 deletions

diff --git a/sql/parse_file.h b/sql/parse_file.h
index afa88da2ead..0d5a215fe1a 100644
--- a/sql/parse_file.h
+++ b/sql/parse_file.h
@@ -49,6 +49,8 @@ struct File_option
 class Unknown_key_hook
 {
 public:
+  Unknown_key_hook() {}                       /* Remove gcc warning */
+  virtual ~Unknown_key_hook() {}              /* Remove gcc warning */
   virtual bool process_unknown_string(char *&unknown_key, gptr base,
                                       MEM_ROOT *mem_root, char *end)= 0;
 };
@@ -59,6 +61,7 @@ public:
 class File_parser_dummy_hook: public Unknown_key_hook
 {
 public:
+  File_parser_dummy_hook() {}                 /* Remove gcc warning */
   virtual bool process_unknown_string(char *&unknown_key, gptr base,
                                       MEM_ROOT *mem_root, char *end);
 };