My compiled version of Pan broke on installing Ubuntu Hardy Heron, so I tried to recompile it from scratch. During this, some errors occurred due to not finding g_assert in a file "my-tree.cc". To fix this, change "gmessages.h" to "gtestutils.h" in the following:

*** my-tree.cc	2008-05-01 19:05:38.000000000 +0900
--- my-tree.cc.~1~	2007-08-02 02:00:00.000000000 +0900
***************
*** 19,25 ****
  
  #include <config.h>
  #include <cassert>
! #include <glib/gtestutils.h> // for g_assert
  #include <pan/general/debug.h>
  #include <pan/general/foreach.h>
  #include <pan/general/quark.h>
--- 19,25 ----
  
  #include <config.h>
  #include <cassert>
! #include <glib/gmessages.h> // for g_assert
  #include <pan/general/debug.h>
  #include <pan/general/foreach.h>
  #include <pan/general/quark.h>

After this it compiled correctly.