刚学unix以下代码怎么编译不了,敬请指教!

leexiaotian

#include "apue.h"
#include "dirent.h"
int main(int argc,char* argv[])
{
   DIR *dp;
   struct dirent   *dirp;

  if(argc != 2)
  {
    err_quit("usage:ls directory_name");
  }
  if((dp = opendir(argv[1])) == NULL)
  {
    err_sys("can't open %s",argv[1]);
  }
  while( (dirp = readdir(dp)) != NULL )
  {
    printf("%s\n",dirp->d_name);
  }
  closedir(dp);
  return 1;
}

ttblmtang123

将err_quit 和err_say 改为 printf  
去掉 #include "apue.h"