--- xdelta-1.1.4/xdmain.c.orig	2007-04-07 22:12:30 +0000

+++ xdelta-1.1.4/xdmain.c	2007-04-07 22:14:48 +0000

@@ -1299,7 +1299,8 @@ xd_handle_map_page (XdFileHandle *fh, gu

 	      return -1;

 	    }

 #else

-	  if (! (lru->buffer = mmap (NULL, to_map, PROT_READ, MAP_PRIVATE, fh->fd, pgno * XD_PAGE_SIZE)))

+	  lru->buffer = mmap (NULL, to_map, PROT_READ, MAP_PRIVATE, fh->fd, pgno * XD_PAGE_SIZE);

+	  if (MAP_FAILED == lru->buffer)

 	    {

 	      xd_error ("mmap failed: %s\n", g_strerror (errno));

 	      return -1;