+#ifdef HAVE_MMAP
+ /* We map read/write and private so we can change newlines to NULs without
+ affecting the underlying object. */
+ buffer = (char *)mmap (0, file_size, PROT_READ|PROT_WRITE, MAP_RFLAGS, file, 0);
+ if ((void *)buffer == MAP_FAILED)
+ goto error_and_exit;
+ chars_read = file_size;
+#else
+ buffer = (char *)malloc (file_size + 1);
+ if (buffer == 0)
+ goto error_and_exit;