Determining if the pthread_setname_np exist failed with the following output: Change Dir: /nvmedata/autobuild/instance-6/output-1/build/host-grpc-v1.16.1/CMakeFiles/CMakeTmp Run Build Command:"/usr/bin/make" "cmTC_c309b/fast" make[1]: Entering directory '/nvmedata/autobuild/instance-6/output-1/build/host-grpc-v1.16.1/CMakeFiles/CMakeTmp' /usr/bin/make -f CMakeFiles/cmTC_c309b.dir/build.make CMakeFiles/cmTC_c309b.dir/build make[2]: Entering directory '/nvmedata/autobuild/instance-6/output-1/build/host-grpc-v1.16.1/CMakeFiles/CMakeTmp' Building C object CMakeFiles/cmTC_c309b.dir/CheckSymbolExists.c.o /usr/bin/gcc -O2 -I/nvmedata/autobuild/instance-6/output-1/host/include -fPIE -o CMakeFiles/cmTC_c309b.dir/CheckSymbolExists.c.o -c /nvmedata/autobuild/instance-6/output-1/build/host-grpc-v1.16.1/CMakeFiles/CMakeTmp/CheckSymbolExists.c /nvmedata/autobuild/instance-6/output-1/build/host-grpc-v1.16.1/CMakeFiles/CMakeTmp/CheckSymbolExists.c: In function 'main': /nvmedata/autobuild/instance-6/output-1/build/host-grpc-v1.16.1/CMakeFiles/CMakeTmp/CheckSymbolExists.c:8:19: error: 'pthread_setname_np' undeclared (first use in this function); did you mean 'pthread_setcanceltype'? 8 | return ((int*)(&pthread_setname_np))[argc]; | ^~~~~~~~~~~~~~~~~~ | pthread_setcanceltype /nvmedata/autobuild/instance-6/output-1/build/host-grpc-v1.16.1/CMakeFiles/CMakeTmp/CheckSymbolExists.c:8:19: note: each undeclared identifier is reported only once for each function it appears in make[2]: *** [CMakeFiles/cmTC_c309b.dir/build.make:66: CMakeFiles/cmTC_c309b.dir/CheckSymbolExists.c.o] Error 1 make[2]: Leaving directory '/nvmedata/autobuild/instance-6/output-1/build/host-grpc-v1.16.1/CMakeFiles/CMakeTmp' make[1]: *** [Makefile:121: cmTC_c309b/fast] Error 2 make[1]: Leaving directory '/nvmedata/autobuild/instance-6/output-1/build/host-grpc-v1.16.1/CMakeFiles/CMakeTmp' File /nvmedata/autobuild/instance-6/output-1/build/host-grpc-v1.16.1/CMakeFiles/CMakeTmp/CheckSymbolExists.c: /* */ #include int main(int argc, char** argv) { (void)argv; #ifndef pthread_setname_np return ((int*)(&pthread_setname_np))[argc]; #else (void)argc; return 0; #endif } Determining if the pthread_create exist failed with the following output: Change Dir: /nvmedata/autobuild/instance-6/output-1/build/host-grpc-v1.16.1/CMakeFiles/CMakeTmp Run Build Command:"/usr/bin/make" "cmTC_8668f/fast" make[1]: Entering directory '/nvmedata/autobuild/instance-6/output-1/build/host-grpc-v1.16.1/CMakeFiles/CMakeTmp' /usr/bin/make -f CMakeFiles/cmTC_8668f.dir/build.make CMakeFiles/cmTC_8668f.dir/build make[2]: Entering directory '/nvmedata/autobuild/instance-6/output-1/build/host-grpc-v1.16.1/CMakeFiles/CMakeTmp' Building C object CMakeFiles/cmTC_8668f.dir/CheckSymbolExists.c.o /usr/bin/gcc -O2 -I/nvmedata/autobuild/instance-6/output-1/host/include -fPIE -o CMakeFiles/cmTC_8668f.dir/CheckSymbolExists.c.o -c /nvmedata/autobuild/instance-6/output-1/build/host-grpc-v1.16.1/CMakeFiles/CMakeTmp/CheckSymbolExists.c Linking C executable cmTC_8668f /usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_8668f.dir/link.txt --verbose=1 /usr/bin/gcc -O2 -I/nvmedata/autobuild/instance-6/output-1/host/include -rdynamic CMakeFiles/cmTC_8668f.dir/CheckSymbolExists.c.o -o cmTC_8668f /usr/bin/ld: CMakeFiles/cmTC_8668f.dir/CheckSymbolExists.c.o: in function `main': CheckSymbolExists.c:(.text.startup+0x7): undefined reference to `pthread_create' collect2: error: ld returned 1 exit status make[2]: *** [CMakeFiles/cmTC_8668f.dir/build.make:87: cmTC_8668f] Error 1 make[2]: Leaving directory '/nvmedata/autobuild/instance-6/output-1/build/host-grpc-v1.16.1/CMakeFiles/CMakeTmp' make[1]: *** [Makefile:121: cmTC_8668f/fast] Error 2 make[1]: Leaving directory '/nvmedata/autobuild/instance-6/output-1/build/host-grpc-v1.16.1/CMakeFiles/CMakeTmp' File /nvmedata/autobuild/instance-6/output-1/build/host-grpc-v1.16.1/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: /nvmedata/autobuild/instance-6/output-1/build/host-grpc-v1.16.1/CMakeFiles/CMakeTmp Run Build Command:"/usr/bin/make" "cmTC_fbaf8/fast" make[1]: Entering directory '/nvmedata/autobuild/instance-6/output-1/build/host-grpc-v1.16.1/CMakeFiles/CMakeTmp' /usr/bin/make -f CMakeFiles/cmTC_fbaf8.dir/build.make CMakeFiles/cmTC_fbaf8.dir/build make[2]: Entering directory '/nvmedata/autobuild/instance-6/output-1/build/host-grpc-v1.16.1/CMakeFiles/CMakeTmp' Building C object CMakeFiles/cmTC_fbaf8.dir/CheckFunctionExists.c.o /usr/bin/gcc -O2 -I/nvmedata/autobuild/instance-6/output-1/host/include -DCHECK_FUNCTION_EXISTS=pthread_create -fPIE -o CMakeFiles/cmTC_fbaf8.dir/CheckFunctionExists.c.o -c /usr/share/cmake-3.13/Modules/CheckFunctionExists.c Linking C executable cmTC_fbaf8 /usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_fbaf8.dir/link.txt --verbose=1 /usr/bin/gcc -O2 -I/nvmedata/autobuild/instance-6/output-1/host/include -DCHECK_FUNCTION_EXISTS=pthread_create -rdynamic CMakeFiles/cmTC_fbaf8.dir/CheckFunctionExists.c.o -o cmTC_fbaf8 -lpthreads /usr/bin/ld: cannot find -lpthreads collect2: error: ld returned 1 exit status make[2]: *** [CMakeFiles/cmTC_fbaf8.dir/build.make:87: cmTC_fbaf8] Error 1 make[2]: Leaving directory '/nvmedata/autobuild/instance-6/output-1/build/host-grpc-v1.16.1/CMakeFiles/CMakeTmp' make[1]: *** [Makefile:121: cmTC_fbaf8/fast] Error 2 make[1]: Leaving directory '/nvmedata/autobuild/instance-6/output-1/build/host-grpc-v1.16.1/CMakeFiles/CMakeTmp'