Pi4 Comple Error.

[neolu]

CROSS_COMPILE_PREFIX=arm-linux-gnueabihf ./cross_compile.sh make[1]: Entering directory '/home/pi/works/rplidar_sdk/sdk' CXX src/sl_lidar_driver.cpp In file included from src/sl_lidar_driver.cpp:40: src/hal/event.h: In member function ‘long unsigned int rp::hal::Event::wait(long unsigned int)’: src/hal/event.h:141:31: warning: conversion from ‘rp::hal::Event::’ to ‘long unsigned int’ changes value from ‘rp::hal::Event::EVENT_TIMEOUT’ to ‘4294967295’ [-Woverflow] 141 | ans = EVENT_TIMEOUT; | ^~~~~ src/sl_lidar_driver.cpp: In member function ‘virtual sl_result sl::SlamtecLidarDriver::grabScanDataHq(sl_lidar_response_measurement_node_hq_t, size_t&, sl_u32)’: src/sl_lidar_driver.cpp:556:34: error: narrowing conversion of ‘rp::hal::Event::EVENT_TIMEOUT’ from ‘long long unsigned int’ to ‘long unsigned int’ [-Wnarrowing] 556 | case rp::hal::Event::EVENT_TIMEOUT: | ^~~~~ src/sl_lidar_driver.cpp:556:13: warning: conversion from ‘long long unsigned int’ to ‘long unsigned int’ changes value from ‘18446744073709551615’ to ‘4294967295’ [-Woverflow] 556 | case rp::hal::Event::EVENT_TIMEOUT: | ^~~~ src/sl_lidar_driver.cpp: In member function ‘sl_result sl::SlamtecLidarDriver::_sendCommand(sl_u16, const void, size_t)’: src/sl_lidar_driver.cpp:1089:35: warning: comparison of integer expressions of different signedness: ‘int’ and ‘std::vector::size_type’ {aka ‘unsigned int’} [-Wsign-compare] 1089 | for (int pos = 0; pos < cmd_packet.size(); pos++) { | ~~^~~~~ src/sl_lidar_driver.cpp:1058:19: warning: unused variable ‘pkt_header’ [-Wunused-variable] 1058 | sl_u8 pkt_header[10]; | ^~~~~~ src/sl_lidar_driver.cpp: In member function ‘void sl::SlamtecLidarDriver::_ultraCapsuleToNormal(const sl_lidar_response_ultra_capsule_measurement_nodes_t&, sl_lidar_response_measurement_node_hq_t, size_t&)’: src/sl_lidar_driver.cpp:1370:40: warning: comparison of integer expressions of different signedness: ‘int’ and ‘unsigned int’ [-Wsign-compare] 1370 | if ((dist_predict1 == 0xFFFFFE00) || (dist_predict1 == 0x1FF)) { | ~~~~^~~ src/sl_lidar_driver.cpp:1379:40: warning: comparison of integer expressions of different signedness: ‘int’ and ‘unsigned int’ [-Wsign-compare] 1379 | if ((dist_predict2 == 0xFFFFFE00) || (dist_predict2 == 0x1FF)) { | ~~~~^~~ src/sl_lidar_driver.cpp: At global scope: src/sl_lidar_driver.cpp:72:17: warning: ‘void sl::convert(const sl_lidar_response_measurement_node_hq_t&, sl_lidar_response_measurement_node_t&)’ defined but not used [-Wunused-function] 72 | static void convert(const sl_lidar_response_measurement_node_hq_t& from, sl_lidar_response_measurement_node_t& to) | ^~~ src/sl_lidar_driver.cpp:59:17: warning: ‘void sl::printDeprecationWarn(const char, const char)’ defined but not used [-Wunused-function] 59 | static void printDeprecationWarn(const char fn, const char* replacement) | ^~~~~~~~ make[1]: [/home/pi/works/rplidar_sdk/mak_common.inc:82: /home/pi/works/rplidar_sdk/obj/Linux/Release/sdk/src/sl_lidar_driver.o] Error 1 make[1]: Leaving directory '/home/pi/works/rplidar_sdk/sdk' make: [/home/pi/works/rplidar_sdk/mak_common.inc:43: make_subs] Error 1 pi@raspberrypi:~/works/rplidar_sdk $

[bramburn]

do you have the gnu compiler installed and pointed correctly? are you building on a linux box or WSL?

[ARDev1161]

do you have the gnu compiler installed and pointed correctly? are you building on a linux box or WSL? This can help https://github.com/Slamtec/rplidar_sdk/pull/66/files