fail to build thundersvm(GPU)

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Determining if the pthread_create exist failed with the following output: Change Dir: /home/user-njf/bjy/V5_winter_wheat_extract/thundersvm-master/build/CMakeFiles/CMakeTmp

Run Build Command:"/usr/bin/make" "cmTC_0f534/fast" /usr/bin/make -f CMakeFiles/cmTC_0f534.dir/build.make CMakeFiles/cmTC_0f534.dir/build make[1]: Entering directory '/home/user-njf/bjy/V5_winter_wheat_extract/thundersvm-master/build/CMakeFiles/CMakeTmp' Building C object CMakeFiles/cmTC_0f534.dir/CheckSymbolExists.c.o /usr/bin/cc -o CMakeFiles/cmTC_0f534.dir/CheckSymbolExists.c.o -c /home/user-njf/bjy/V5_winter_wheat_extract/thundersvm-master/build/CMakeFiles/CMakeTmp/CheckSymbolExists.c Linking C executable cmTC_0f534 /usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_0f534.dir/link.txt --verbose=1 /usr/bin/cc CMakeFiles/cmTC_0f534.dir/CheckSymbolExists.c.o -o cmTC_0f534 CMakeFiles/cmTC_0f534.dir/CheckSymbolExists.c.o: In function main': CheckSymbolExists.c:(.text+0x16): undefined reference to pthread_create' collect2: error: ld returned 1 exit status CMakeFiles/cmTC_0f534.dir/build.make:97: recipe for target 'cmTC_0f534' failed make[1]: *** [cmTC_0f534] Error 1 make[1]: Leaving directory '/home/user-njf/bjy/V5_winter_wheat_extract/thundersvm-master/build/CMakeFiles/CMakeTmp' Makefile:126: recipe for target 'cmTC_0f534/fast' failed make: *** [cmTC_0f534/fast] Error 2

File /home/user-njf/bjy/V5_winter_wheat_extract/thundersvm-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/user-njf/bjy/V5_winter_wheat_extract/thundersvm-master/build/CMakeFiles/CMakeTmp

Run Build Command:"/usr/bin/make" "cmTC_3385b/fast" /usr/bin/make -f CMakeFiles/cmTC_3385b.dir/build.make CMakeFiles/cmTC_3385b.dir/build make[1]: Entering directory '/home/user-njf/bjy/V5_winter_wheat_extract/thundersvm-master/build/CMakeFiles/CMakeTmp' Building C object CMakeFiles/cmTC_3385b.dir/CheckFunctionExists.c.o /usr/bin/cc -DCHECK_FUNCTION_EXISTS=pthread_create -o CMakeFiles/cmTC_3385b.dir/CheckFunctionExists.c.o -c /usr/share/cmake-3.5/Modules/CheckFunctionExists.c Linking C executable cmTC_3385b /usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_3385b.dir/link.txt --verbose=1 /usr/bin/cc -DCHECK_FUNCTION_EXISTS=pthread_create CMakeFiles/cmTC_3385b.dir/CheckFunctionExists.c.o -o cmTC_3385b -lpthreads /usr/bin/ld: cannot find -lpthreads collect2: error: ld returned 1 exit status CMakeFiles/cmTC_3385b.dir/build.make:97: recipe for target 'cmTC_3385b' failed make[1]: *** [cmTC_3385b] Error 1 make[1]: Leaving directory '/home/user-njf/bjy/V5_winter_wheat_extract/thundersvm-master/build/CMakeFiles/CMakeTmp' Makefile:126: recipe for target 'cmTC_3385b/fast' failed make: *** [cmTC_3385b/fast] Error 2