texinfo/patches/texinfo-4.13a-help-index-segfault.patch

   1 diff -up texinfo-4.13/info/indices.c.orig texinfo-4.13/info/indices.c
   2 --- texinfo-4.13/info/indices.c.orig    2010-08-31 12:04:38.317462471 +0200
   3 +++ texinfo-4.13/info/indices.c 2010-08-31 12:11:49.322624552 +0200
   4 @@ -192,6 +192,7 @@ do_info_index_search (WINDOW *window, in
   5       index for, build and remember an index now. */
   6    fb = file_buffer_of_window (window);
   7    if (!initial_index_filename ||
   8 +      !fb ||
   9        (FILENAME_CMP (initial_index_filename, fb->filename) != 0))
  10      {
  11        info_free_references (index_index);
  12 @@ -287,8 +288,9 @@ index_entry_exists (WINDOW *window, char
  13      return 0;
  14
  15    fb = file_buffer_of_window (window);
  16 -  if (!initial_index_filename
  17 -      || (FILENAME_CMP (initial_index_filename, fb->filename) != 0))
  18 +  if (!initial_index_filename ||
  19 +      !fb ||
  20 +      (FILENAME_CMP (initial_index_filename, fb->filename) != 0))
  21      {
  22        info_free_references (index_index);
  23        index_index = info_indices_of_file_buffer (fb);