/usr/bin/ld: 找不到 -lpthreads

[xiesibo]

Determining if the pthread_create exist failed with the following output:
Change Dir: /home/x/arm_master/build/CMakeFiles/CMakeTmp

Run Build Command:"/usr/bin/make" "cmTC_dcc45/fast"
/usr/bin/make -f CMakeFiles/cmTC_dcc45.dir/build.make CMakeFiles/cmTC_dcc45.dir/build
make[1]: Entering directory '/home/x/arm_master/build/CMakeFiles/CMakeTmp'
Building C object CMakeFiles/cmTC_dcc45.dir/CheckSymbolExists.c.o
/usr/bin/cc -o CMakeFiles/cmTC_dcc45.dir/CheckSymbolExists.c.o -c /home/x/arm_master/build/CMakeFiles/CMakeTmp/CheckSymbolExists.c
Linking C executable cmTC_dcc45
/usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_dcc45.dir/link.txt --verbose=1
/usr/bin/cc CMakeFiles/cmTC_dcc45.dir/CheckSymbolExists.c.o -o cmTC_dcc45 -rdynamic
CMakeFiles/cmTC_dcc45.dir/CheckSymbolExists.c.o：在函数‘main’中：
CheckSymbolExists.c:(.text+0x16)：对‘pthread_create’未定义的引用
collect2: error: ld returned 1 exit status
CMakeFiles/cmTC_dcc45.dir/build.make:97: recipe for target 'cmTC_dcc45' failed
make[1]: *** [cmTC_dcc45] Error 1
make[1]: Leaving directory '/home/x/arm_master/build/CMakeFiles/CMakeTmp'
Makefile:126: recipe for target 'cmTC_dcc45/fast' failed
make: *** [cmTC_dcc45/fast] Error 2

File /home/x/arm_master/build/CMakeFiles/CMakeTmp/CheckSymbolExists.c:
/* */
#include <pthread.h>

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/x/arm_master/build/CMakeFiles/CMakeTmp

Run Build Command:"/usr/bin/make" "cmTC_abdcb/fast"
/usr/bin/make -f CMakeFiles/cmTC_abdcb.dir/build.make CMakeFiles/cmTC_abdcb.dir/build
make[1]: Entering directory '/home/x/arm_master/build/CMakeFiles/CMakeTmp'
Building C object CMakeFiles/cmTC_abdcb.dir/CheckFunctionExists.c.o
/usr/bin/cc -DCHECK_FUNCTION_EXISTS=pthread_create -o CMakeFiles/cmTC_abdcb.dir/CheckFunctionExists.c.o -c /usr/share/cmake-3.5/Modules/CheckFunctionExists.c
Linking C executable cmTC_abdcb
/usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_abdcb.dir/link.txt --verbose=1
/usr/bin/cc -DCHECK_FUNCTION_EXISTS=pthread_create CMakeFiles/cmTC_abdcb.dir/CheckFunctionExists.c.o -o cmTC_abdcb -rdynamic -lpthreads
/usr/bin/ld: 找不到 -lpthreads
collect2: error: ld returned 1 exit status
CMakeFiles/cmTC_abdcb.dir/build.make:97: recipe for target 'cmTC_abdcb' failed
make[1]: *** [cmTC_abdcb] Error 1
make[1]: Leaving directory '/home/x/arm_master/build/CMakeFiles/CMakeTmp'
Makefile:126: recipe for target 'cmTC_abdcb/fast' failed
make: *** [cmTC_abdcb/fast] Error 2
请问这个要怎么配置