undefined reference to `socket' PX4 V5飞控

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           SRAM2:          0 GB        16 KB      0.00/usr/lib/gcc/arm-none-eabi/9.2.1/../../../arm-none-eabi/bin/ld: src/drivers/engine_control/libdrivers__engine_control.a(engine_control.c.obj): in function `open_can_port':
/home/cuigaosheng/VersaFly/build/px4_fmu-v5_default/../../src/drivers/engine_control/engine_control.c:514: undefined reference to `socket'
/usr/lib/gcc/arm-none-eabi/9.2.1/../../../arm-none-eabi/bin/ld: /home/cuigaosheng/VersaFly/build/px4_fmu-v5_default/../../src/drivers/engine_control/engine_control.c:553: undefined reference to `bind'
collect2: error: ld returned 1 exit status
%
ninja: build stopped: subcommand failed.
make: *** [Makefile:226：px4_fmu-v5_default] 错误 1

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