1  #include <stdio.h>
       2  #include <stdlib.h>
       3  #include <unistd.h>
       4  
       5  void
       6  __attribute ((constructor))
       7  init (void)
       8  {
       9    puts ("init DSO");
      10  
      11    static char str[] = "SOMETHING_NOBODY_USES=something_else";
      12    if (putenv (str) != 0)
      13      {
      14        puts ("putenv failed");
      15        _exit (1);
      16      }
      17  }