Determining if the pthread_create exist failed with the following output: Change Dir: /home/lenotary/work/code/lidar_to_camera/cmake-build-debug/CMakeFiles/CMakeTmp Run Build Command:"/usr/bin/make" "cmTC_44d7e/fast" /usr/bin/make -f CMakeFiles/cmTC_44d7e.dir/build.make CMakeFiles/cmTC_44d7e.dir/build make[1]: 进入目录“/home/lenotary/work/code/lidar_to_camera/cmake-build-debug/CMakeFiles/CMakeTmp” Building C object CMakeFiles/cmTC_44d7e.dir/CheckSymbolExists.c.o /usr/bin/cc -o CMakeFiles/cmTC_44d7e.dir/CheckSymbolExists.c.o -c /home/lenotary/work/code/lidar_to_camera/cmake-build-debug/CMakeFiles/CMakeTmp/CheckSymbolExists.c Linking C executable cmTC_44d7e /usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_44d7e.dir/link.txt --verbose=1 /usr/bin/cc -rdynamic CMakeFiles/cmTC_44d7e.dir/CheckSymbolExists.c.o -o cmTC_44d7e CMakeFiles/cmTC_44d7e.dir/CheckSymbolExists.c.o:在函数‘main’中: CheckSymbolExists.c:(.text+0x1b):对‘pthread_create’未定义的引用 collect2: error: ld returned 1 exit status CMakeFiles/cmTC_44d7e.dir/build.make:97: recipe for target 'cmTC_44d7e' failed make[1]: *** [cmTC_44d7e] Error 1 make[1]: 离开目录“/home/lenotary/work/code/lidar_to_camera/cmake-build-debug/CMakeFiles/CMakeTmp” Makefile:126: recipe for target 'cmTC_44d7e/fast' failed make: *** [cmTC_44d7e/fast] Error 2 File /home/lenotary/work/code/lidar_to_camera/cmake-build-debug/CMakeFiles/CMakeTmp/CheckSymbolExists.c: /* */ #include int main(int argc, char** argv) { (void)argv; #ifndef pthread_create return ((int*)(&pthread_create))[argc]; #else (void)argc; return 0; #endif } Determining if the function pthread_create exists in the pthreads failed with the following output: Change Dir: /home/lenotary/work/code/lidar_to_camera/cmake-build-debug/CMakeFiles/CMakeTmp Run Build Command:"/usr/bin/make" "cmTC_d414b/fast" /usr/bin/make -f CMakeFiles/cmTC_d414b.dir/build.make CMakeFiles/cmTC_d414b.dir/build make[1]: 进入目录“/home/lenotary/work/code/lidar_to_camera/cmake-build-debug/CMakeFiles/CMakeTmp” Building C object CMakeFiles/cmTC_d414b.dir/CheckFunctionExists.c.o /usr/bin/cc -DCHECK_FUNCTION_EXISTS=pthread_create -o CMakeFiles/cmTC_d414b.dir/CheckFunctionExists.c.o -c /usr/share/cmake-3.10/Modules/CheckFunctionExists.c Linking C executable cmTC_d414b /usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_d414b.dir/link.txt --verbose=1 /usr/bin/cc -DCHECK_FUNCTION_EXISTS=pthread_create -rdynamic CMakeFiles/cmTC_d414b.dir/CheckFunctionExists.c.o -o cmTC_d414b -lpthreads /usr/bin/ld: 找不到 -lpthreads collect2: error: ld returned 1 exit status CMakeFiles/cmTC_d414b.dir/build.make:97: recipe for target 'cmTC_d414b' failed make[1]: *** [cmTC_d414b] Error 1 make[1]: 离开目录“/home/lenotary/work/code/lidar_to_camera/cmake-build-debug/CMakeFiles/CMakeTmp” Makefile:126: recipe for target 'cmTC_d414b/fast' failed make: *** [cmTC_d414b/fast] Error 2