--- fccache.c.org	2009-04-05 18:43:00.000000000 +0200
+++ fccache.c	2009-04-05 18:43:06.000000000 +0200
@@ -552,6 +552,8 @@
     {
 #if defined(HAVE_MMAP) || defined(__CYGWIN__)
 	cache = mmap (0, fd_stat->st_size, PROT_READ, MAP_SHARED, fd, 0);
+	if (cache == MAP_FAILED)
+	    cache = NULL;
 #elif defined(_WIN32)
 	{
 	    HANDLE hFileMap;