Fixed compiler warnings from optimized builds

sql/mysqld.cc

@@ -4908,8 +4908,8 @@ int reinit_ssl()
   ssl_acceptor_fd= new_fd;
   ssl_acceptor_stats.init();
   mysql_rwlock_unlock(&LOCK_ssl_refresh);
-  return 0;
 #endif
+  return 0;
 }
 
 static void end_ssl()

sql/sql_delete.cc

@@ -319,9 +319,7 @@ bool mysql_delete(THD *thd, TABLE_LIST *table_list, COND *conds,
       DBUG_RETURN(true);
     }
 
-    TABLE *table= table_list->table;
-    DBUG_ASSERT(table);
-
+    DBUG_ASSERT(table_list->table);
     DBUG_ASSERT(!conds || thd->stmt_arena->is_stmt_execute());
 
     // conds could be cached from previous SP call

sql/sql_lex.cc

@@ -9342,7 +9342,7 @@ bool LEX::parsed_insert_select(SELECT_LEX *first_select)
     return true;
 
   // fix "main" select
-  SELECT_LEX *blt= pop_select();
+  SELECT_LEX *blt __attribute__((unused))= pop_select();
   DBUG_ASSERT(blt == &builtin_select);
   push_select(first_select);
   return false;

sql/sql_lex.h

@@ -3438,12 +3438,14 @@ struct LEX: public Query_tables_list
   void pop_context()
   {
     DBUG_ENTER("LEX::pop_context");
+#ifndef DBUG_OFF
     Name_resolution_context *context= context_stack.pop();
     DBUG_PRINT("info", ("Pop context %p Select: %p (%d)",
                          context, context->select_lex,
                          (context->select_lex ?
                           context->select_lex->select_number:
                           0)));
+#endif
     DBUG_VOID_RETURN;
   }
 

storage/connect/plugutil.cpp

@@ -526,7 +526,7 @@ BOOL PlugSubSet(void *memp, uint size)
 /***********************************************************************/
 /*  Use it to export a function that do throwing.                      */
 /***********************************************************************/
-void *DoThrow(int n)
+static void *DoThrow(int n)
 {
 	throw n;
 } /* end of DoThrow */

storage/innobase/handler/handler0alter.cc

@@ -167,7 +167,7 @@ to instant->dropped[]
 template<bool replace_dropped>
 inline void dict_table_t::init_instant(const dict_table_t& table)
 {
-	const dict_index_t& oindex = *table.indexes.start;
+	const dict_index_t& oindex __attribute__((unused))= *table.indexes.start;
 	dict_index_t& index = *indexes.start;
 	const unsigned u = index.first_user_field();
 	DBUG_ASSERT(u == oindex.first_user_field());
@@ -785,9 +785,9 @@ inline void dict_table_t::rollback_instant(
 		index->get_n_nullable(index->n_core_fields));
 
 	const dict_col_t* const new_cols = cols;
-	const dict_col_t* const new_cols_end = cols + n_cols;
+	const dict_col_t* const new_cols_end __attribute__((unused)) = cols + n_cols;
 	const dict_v_col_t* const new_v_cols = v_cols;
-	const dict_v_col_t* const new_v_cols_end = v_cols + n_v_cols;
+	const dict_v_col_t* const new_v_cols_end __attribute__((unused))= v_cols + n_v_cols;
 
 	cols = old_cols;
 	col_names = old_col_names;

storage/maria/test_ma_backup.c

@@ -32,7 +32,7 @@ static int create_test_table(const char *table_name, int stage);
 static int copy_table(const char *table_name, int stage);
 static void create_record(uchar *record,uint rownr);
 
-int main(int argc,char *argv[])
+int main(int argc __attribute__((unused)), char *argv[])
 {
   int error= 1;
   int i;