#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>

int
main(int argc, char *const argv[], char *const envp[])
{
  int i, len = 0;
  char **argv2 = malloc(sizeof(char*) * (argc + 1));
  argv2[0] = "%%LOCALBASE%%/bin/perl";
  for (i = 1; i < argc + 1; i++) {
    argv2[i] = argv[i];
  }
  for (i = 0; envp[i]; i++) {
    len++;
  }
  char **envp2 = malloc(sizeof(char*) * (len + 2));
  envp2[0] = "LD_PRELOAD=%%LIBTHR%%";
  /* Copy last null, too. */
  for (i = 0; i < len + 1; i++) {
    envp2[i + 1] = envp[i];
  }
  return execve(argv2[0], argv2, envp2);
}