#include <stdio.h>
#include <stdlib.h>
-#ifdef HAVE_STRING_H
-# include <string.h>
-#else /* not HAVE_STRING_H */
-# include <strings.h>
-#endif /* not HAVE_STRING_H */
-#include <sys/types.h>
+#include <string.h>
#include <errno.h>
#include <assert.h>
#include "xmalloc.h"
#include "hash.h" /* for hash_pointer */
-#ifndef errno
-extern int errno;
-#endif
-
/* This file implements several wrappers around the basic allocation
routines. This is done for two reasons: first, so that the callers
of these functions need not check for errors, which is easy to