Determining if the pthread_create exist failed with the following output:
Change Dir: /home/vnpy/桌面/new/vn.ib/build/CMakeFiles/CMakeTmp

Run Build Command:"/usr/bin/make" "cmTC_deeb6/fast"
/usr/bin/make -f CMakeFiles/cmTC_deeb6.dir/build.make CMakeFiles/cmTC_deeb6.dir/build
make[1]: Entering directory '/home/vnpy/桌面/new/vn.ib/build/CMakeFiles/CMakeTmp'
Building CXX object CMakeFiles/cmTC_deeb6.dir/CheckSymbolExists.cxx.o
/usr/bin/c++     -fPIC -std=c++11    -o CMakeFiles/cmTC_deeb6.dir/CheckSymbolExists.cxx.o -c /home/vnpy/桌面/new/vn.ib/build/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx
Linking CXX executable cmTC_deeb6
/usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_deeb6.dir/link.txt --verbose=1
/usr/bin/c++    -fPIC -std=c++11     CMakeFiles/cmTC_deeb6.dir/CheckSymbolExists.cxx.o  -o cmTC_deeb6 -rdynamic 
CMakeFiles/cmTC_deeb6.dir/CheckSymbolExists.cxx.o：在函数‘main’中：
CheckSymbolExists.cxx:(.text+0x1b)：对‘pthread_create’未定义的引用
collect2: error: ld returned 1 exit status
CMakeFiles/cmTC_deeb6.dir/build.make:97: recipe for target 'cmTC_deeb6' failed
make[1]: *** [cmTC_deeb6] Error 1
make[1]: Leaving directory '/home/vnpy/桌面/new/vn.ib/build/CMakeFiles/CMakeTmp'
Makefile:126: recipe for target 'cmTC_deeb6/fast' failed
make: *** [cmTC_deeb6/fast] Error 2

File /home/vnpy/桌面/new/vn.ib/build/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx:
/* */
#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/vnpy/桌面/new/vn.ib/build/CMakeFiles/CMakeTmp

Run Build Command:"/usr/bin/make" "cmTC_704c9/fast"
/usr/bin/make -f CMakeFiles/cmTC_704c9.dir/build.make CMakeFiles/cmTC_704c9.dir/build
make[1]: Entering directory '/home/vnpy/桌面/new/vn.ib/build/CMakeFiles/CMakeTmp'
Building CXX object CMakeFiles/cmTC_704c9.dir/CheckFunctionExists.cxx.o
/usr/bin/c++     -fPIC -std=c++11 -DCHECK_FUNCTION_EXISTS=pthread_create   -o CMakeFiles/cmTC_704c9.dir/CheckFunctionExists.cxx.o -c /home/vnpy/桌面/new/vn.ib/build/CMakeFiles/CheckLibraryExists/CheckFunctionExists.cxx
Linking CXX executable cmTC_704c9
/usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_704c9.dir/link.txt --verbose=1
/usr/bin/c++    -fPIC -std=c++11 -DCHECK_FUNCTION_EXISTS=pthread_create    CMakeFiles/cmTC_704c9.dir/CheckFunctionExists.cxx.o  -o cmTC_704c9 -rdynamic -lpthreads 
/usr/bin/ld: 找不到 -lpthreads
collect2: error: ld returned 1 exit status
CMakeFiles/cmTC_704c9.dir/build.make:97: recipe for target 'cmTC_704c9' failed
make[1]: *** [cmTC_704c9] Error 1
make[1]: Leaving directory '/home/vnpy/桌面/new/vn.ib/build/CMakeFiles/CMakeTmp'
Makefile:126: recipe for target 'cmTC_704c9/fast' failed
make: *** [cmTC_704c9/fast] Error 2