fixed build failure with sun-cc

"lua-scope.c", line 470: operands have incompatible types: int ":" void g_atomic_int_add() returns a int and our replacement value has to match that type

Author: jan.kneschke@oracle.com

src/chassis-stats.h

@@ -41,7 +41,7 @@ CHASSIS_API GHashTable* chassis_stats_get(chassis_stats_t *user_data);
 
 #define CHASSIS_STATS_ALLOC_INC_NAME(name) ((chassis_global_stats != NULL) ? g_atomic_int_inc(&(chassis_global_stats->name ## _alloc)) : (void)0)
 #define CHASSIS_STATS_FREE_INC_NAME(name) ((chassis_global_stats != NULL) ? g_atomic_int_inc(&(chassis_global_stats->name ## _free)) : (void)0)
-#define CHASSIS_STATS_ADD_NAME(name, addme) ((chassis_global_stats != NULL) ? g_atomic_int_add(&(chassis_global_stats->name), addme) : (void)0)
+#define CHASSIS_STATS_ADD_NAME(name, addme) ((chassis_global_stats != NULL) ? g_atomic_int_add(&(chassis_global_stats->name), addme) : 0)
 #define CHASSIS_STATS_GET_NAME(name) ((chassis_global_stats != NULL) ? g_atomic_int_get(&(chassis_global_stats->name)) : 0)
 #define CHASSIS_STATS_SET_NAME(name, setme) ((chassis_global_stats != NULL) ? g_atomic_int_set(&(chassis_global_stats->name), setme) : (void)0)