.

1 files changed, 5 insertions, 4 deletions

diff --git a/argp/argp-help.c b/argp/argp-help.c
index 13c0820..c12b10e 100644
--- a/argp/argp-help.c
+++ b/argp/argp-help.c
@@ -1,5 +1,6 @@
 /* Hierarchial argument parsing help output
-   Copyright (C) 1995-2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+   Copyright (C) 1995-2003, 2004, 2005, 2006, 2007
+   Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Miles Bader <miles@gnu.ai.mit.edu>.
 
@@ -672,9 +673,9 @@ hol_cluster_cmp (const struct hol_cluster *cl1, const struct hol_cluster *cl2)
 {
   /* If one cluster is deeper than the other, use its ancestor at the same
      level, so that finding the common ancestor is straightforward.  */
-  while (cl1->depth < cl2->depth)
+  while (cl1->depth > cl2->depth)
     cl1 = cl1->parent;
-  while (cl2->depth < cl1->depth)
+  while (cl2->depth > cl1->depth)
     cl2 = cl2->parent;
 
   /* Now reduce both clusters to their ancestors at the point where both have
@@ -987,7 +988,7 @@ static const char *
 filter_doc (const char *doc, int key, const struct argp *argp,
 	    const struct argp_state *state)
 {
-  if (argp->help_filter)
+  if (argp && argp->help_filter)
     /* We must apply a user filter to this output.  */
     {
       void *input = __argp_input (argp, state);