diff -Nru mdbtools-0.6pre1.orig/include/mdbtools.h mdbtools-0.6pre1/include/mdbtools.h
--- mdbtools-0.6pre1.orig/include/mdbtools.h	2004-06-17 01:42:19.000000000 +0200
+++ mdbtools-0.6pre1/include/mdbtools.h	2007-11-07 15:27:29.000000000 +0100
@@ -146,9 +146,6 @@
 #define IS_JET4(mdb) (mdb->f->jet_version==MDB_VER_JET4)
 #define IS_JET3(mdb) (mdb->f->jet_version==MDB_VER_JET3)
 
-/* hash to store registered backends */
-extern GHashTable	*mdb_backends;
-
 /* forward declarations */
 typedef struct mdbindex MdbIndex;
 typedef struct mdbsargtree MdbSargNode;