/home/lbx/mqtttest$ sudo arm-linux-gnueabihf-gcc MQTTClient_publish.c -lpaho-mqtt3a
/usr/lib/gcc-cross/arm-linux-gnueabihf/11/../../../../arm-linux-gnueabihf/lib/libpaho-mqtt3a.so: file not recognized: file format not recognized
collect2: error: ld returned 1 exit status