线程

heartk

代码如下：
#include <stdio.h>;
#include <strings.h>;
#include <unistd.h>;
#include <sys/types.h>;
#include <arpa/inet.h>;
#include <pthread.h>;
#include <stdlib.h>;


void * mythread(void *arg)  
{  

  for (; {  
    printf("thread\n";  
    sleep(1);  
  }  
  return NULL;  
}  

void main(void)  
{  
  pthread_t th;  

  if (pthread_create(&amp;th,NULL,mythread,NULL)!=0) exit(0);  

  for (; {  
    printf("main process\n";  
    sleep(3);  
  }  
}  

编译后出错如下：

   [oracle@linux hhf]$ gcc -o th thabc.c
thabc.c: In function `main':
thabc.c:21: warning: return type of `main' is not `int'
/tmp/ccWgozhm.o: In function `main':
/tmp/ccWgozhm.o(.text+0x3c): undefined reference to `pthread_create'
collect2: ld returned 1 exit status


请指教！

hutuworm

gcc .... -lpthread