Fix bug with shared memory's variables

sql/mysql_priv.h:
  Fix bugs with shared memory's variables
sql/mysqld.cc:
  Fix bugs with shared memory's variables

sql/mysql_priv.h

@@ -708,6 +708,8 @@ extern my_bool opt_sql_bin_update, opt_safe_user_create, opt_no_mix_types;
 extern my_bool opt_safe_show_db, opt_local_infile, lower_case_table_names;
 extern my_bool opt_slave_compressed_protocol, use_temp_pool;
 extern my_bool opt_enable_named_pipe;
+extern char *shared_memory_base_name;
+extern bool opt_enable_shared_memory;
 extern char f_fyllchar;
 
 extern MYSQL_LOG mysql_log,mysql_update_log,mysql_slow_log,mysql_bin_log;

sql/mysqld.cc

@@ -345,8 +345,8 @@ arg_cmp_func Arg_comparator::comparator_matrix[4][2] =
  {&Arg_comparator::compare_int, &Arg_comparator::compare_e_int},
  {&Arg_comparator::compare_row, &Arg_comparator::compare_e_row}};
 #ifdef HAVE_SMEM
-static char *shared_memory_base_name=default_shared_memory_base_name;
-static bool opt_enable_shared_memory = 0;
+char *shared_memory_base_name=default_shared_memory_base_name;
+bool opt_enable_shared_memory = 0;
 #endif
 
 volatile ulong cached_thread_count=0;