text: #include <pthread.h>
  #include <emscripten.h>
  #include <emscripten/threading.h>
  #include <assert.h>
  #include <stdlib.h>
  
  volatile int result = 0;
  
  static void *thread2_start(void *arg)
  {
    EM_ASM(Module['print']('thread2_start!'););
    ++result;
  
    pthread_exit(0);
  }
  
  static void *thread1_start(void *arg)
  {
    EM_ASM(Module['print']('thread1_start!'););
    pthread_t thr;
    pthread_create(&thr, NULL, thread2_start, 0);
    pthread_join(thr, 0);
    pthread_exit(0);
  }
  
  int main()
  {
    pthread_t thr;
    pthread_create(&thr, NULL, thread1_start, 0);
  
    pthread_attr_t attr;
    pthread_getattr_np(thr, &attr);
    size_t stack_size;
    void *stack_addr;
    pthread_attr_getstack(&attr, &stack_addr, &stack_size);
    printf("stack_size: %d, stack_addr: %p\n", (int)stack_size, stack_addr);
    if (stack_size != 81920 || stack_addr == 0)
      result = -100; // Report failure.
  
    pthread_join(thr, 0);
  
  #ifdef REPORT_RESULT
    REPORT_RESULT();
  #endif
  }
  