percona/percona-server
configure.cmake
:587
CHECK_C_SOURCE_COMPILES("
#include <pthread.h>
int main(int ac, char **av)
{
unsigned long long tid64;
pthread_threadid_np(NULL, &tid64);
return (tid64 != 0 ? 0 : 1);
}"
HAVE_PTHREAD_THREADID_NP)