Bug#11761576 post-push fix: HAVE_EXPLICIT_TEMPLATE_INSTANTIATION in header file broke Mac build

sql/sys_vars.cc

@@ -3253,3 +3253,17 @@ static Sys_var_tz Sys_time_zone(
        SESSION_VAR(time_zone), NO_CMD_LINE,
        DEFAULT(&default_tz), NO_MUTEX_GUARD, IN_BINLOG);
 
+
+/****************************************************************************
+  Used templates
+****************************************************************************/
+
+#ifdef HAVE_EXPLICIT_TEMPLATE_INSTANTIATION
+template class List<set_var_base>;
+template class List_iterator_fast<set_var_base>;
+template class Sys_var_unsigned<uint, GET_UINT, SHOW_INT>;
+template class Sys_var_unsigned<ulong, GET_ULONG, SHOW_LONG>;
+template class Sys_var_unsigned<ha_rows, GET_HA_ROWS, SHOW_HA_ROWS>;
+template class Sys_var_unsigned<ulonglong, GET_ULL, SHOW_LONGLONG>;
+#endif
+

sql/sys_vars.h

@@ -1606,17 +1606,3 @@ class Sys_var_tx_isolation: public Sys_var_enum
   {}
   virtual bool session_update(THD *thd, set_var *var);
 };
-
-/****************************************************************************
-  Used templates
-****************************************************************************/
-
-#ifdef HAVE_EXPLICIT_TEMPLATE_INSTANTIATION
-template class List<set_var_base>;
-template class List_iterator_fast<set_var_base>;
-template class Sys_var_unsigned<uint, GET_UINT, SHOW_INT>;
-template class Sys_var_unsigned<ulong, GET_ULONG, SHOW_LONG>;
-template class Sys_var_unsigned<ha_rows, GET_HA_ROWS, SHOW_HA_ROWS>;
-template class Sys_var_unsigned<ulonglong, GET_ULL, SHOW_LONGLONG>;
-#endif
-