在c++下编译出现错误 about mqttclient HOT 2 OPEN

你是怎么编译的？

from mqttclient.

root@xdt-virtual-machine:/mqtt/mqttclient-master/test/onenet# gcc -std=gnu99 -o testone test.c -I /mqtt/mqttclient-master/libmqttclient/include -L /mqtt/mqttclient-master/libmqttclient/lib -lmqttclient -lpthread
root@xdt-virtual-machine:/mqtt/mqttclient-master/test/onenet# g++ -std=gnu99 -o testone test.c -I /mqtt/mqttclient-master/libmqttclient/include -L /mqtt/mqttclient-master/libmqttclient/lib -lmqttclient -lpthread
cc1plus: 警告： command line option ‘-std=gnu99’ is valid for C/ObjC but not for C++ [默认启用]
In file included from test.c:13:0:
/mqtt/mqttclient-master/libmqttclient/include/mqttclient.h:79:1: 错误： types may not be defined in ‘sizeof’ expressions
/mqtt/mqttclient-master/libmqttclient/include/mqttclient.h:79:1: 错误： types may not be defined in ‘alignof’ expressions
/mqtt/mqttclient-master/libmqttclient/include/mqttclient.h:88:1: 错误： types may not be defined in ‘sizeof’ expressions
/mqtt/mqttclient-master/libmqttclient/include/mqttclient.h:88:1: 错误： types may not be defined in ‘alignof’ expressions
/mqtt/mqttclient-master/libmqttclient/include/mqttclient.h:97:1: 错误： types may not be defined in ‘sizeof’ expressions
/mqtt/mqttclient-master/libmqttclient/include/mqttclient.h:97:1: 错误： types may not be defined in ‘alignof’ expressions
/mqtt/mqttclient-master/libmqttclient/include/mqttclient.h:110:1: 错误： types may not be defined in ‘sizeof’ expressions
/mqtt/mqttclient-master/libmqttclient/include/mqttclient.h:110:1: 错误： types may not be defined in ‘alignof’ expressions
/mqtt/mqttclient-master/libmqttclient/include/mqttclient.h:120:1: 错误： types may not be defined in ‘sizeof’ expressions
/mqtt/mqttclient-master/libmqttclient/include/mqttclient.h:120:1: 错误： types may not be defined in ‘alignof’ expressions
test.c: 在函数‘void* mqtt_publish_thread(void*)’中:
test.c:35:15: 错误： 从类型‘int’到类型‘mqtt_qos_t {aka mqtt_qos}’的转换无效 [-fpermissive]
test.c: 在函数‘int main()’中:
test.c:56:33: 警告： 不建议使用从字符串常量到‘char*’的转换 [-Wwrite-strings]
test.c:57:42: 警告： 不建议使用从字符串常量到‘char*’的转换 [-Wwrite-strings]
test.c:58:43: 警告： 不建议使用从字符串常量到‘char*’的转换 [-Wwrite-strings]
test.c:59:40: 警告： 不建议使用从字符串常量到‘char*’的转换 [-Wwrite-strings]
test.c:60:48: 警告： 不建议使用从字符串常量到‘char*’的转换 [-Wwrite-strings]
root@xdt-virtual-machine:/mqtt/mqttclient-master/test/onenet#

from mqttclient.