CHECK_C_SOURCE_RUNS(
"
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <sys/time.h>
 
 int main()
 {    
   int fd = socket(AF_INET, SOCK_STREAM, 0);
   struct timeval tv;
   int ret= 0;
   tv.tv_sec= 2;
   tv.tv_usec= 0;
   ret|= setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, &tv, sizeof(tv));
   ret|= setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
   return !!ret;
 }
" HAVE_SOCKET_TIMEOUT)