diff -up cracklib-2.9.0/lib/packer.h.gztype cracklib-2.9.0/lib/packer.h
--- cracklib-2.9.0/lib/packer.h.gztype	2013-08-21 11:48:47.341631450 +0200
+++ cracklib-2.9.0/lib/packer.h		2013-08-21 11:47:52.948471397 +0200
@@ -44,7 +44,7 @@ struct pi_header
 typedef struct
 {
     FILE *ifp;
-    FILE *dfp;
+    void *dfp;
     FILE *wfp;
 
     uint32_t flags;
diff -up cracklib-2.9.0/lib/packlib.c.gztype cracklib-2.9.0/lib/packlib.c
--- cracklib-2.9.0/lib/packlib.c.gztype	2013-08-21 11:27:12.000000000 +0200
+++ cracklib-2.9.0/lib/packlib.c	2013-08-21 11:49:32.787600685 +0200
@@ -72,7 +72,7 @@ PWOpen(prefix, mode)
     char iname[STRINGSIZE];
     char dname[STRINGSIZE];
     char wname[STRINGSIZE];
-    FILE *dfp;
+    void *dfp;
     FILE *ifp;
     FILE *wfp;