--- C:\builds\redland-1.0.8_orig\librdf\rdf_init.c	Mon Jun 30 23:10:26 2008
+++ C:\builds\redland-1.0.8_good\librdf\rdf_init.c	Thu Jul 31 09:59:57 2008
@@ -201,20 +201,36 @@
   librdf_finish_digest(world);
 
 #ifdef WITH_THREADS
-   if (world->mutex)
-   {
-     pthread_mutex_destroy(world->statements_mutex);
-     SYSTEM_FREE(world->statements_mutex);
-     world->statements_mutex = NULL;
 
-     pthread_mutex_destroy(world->nodes_mutex);
-     SYSTEM_FREE(world->nodes_mutex);
-     world->nodes_mutex = NULL;
+  if (world->hash_datums_mutex)
+  {
+     pthread_mutex_destroy(world->hash_datums_mutex);
+     SYSTEM_FREE(world->hash_datums_mutex);
+     world->hash_datums_mutex = NULL;
+  }
 
-     pthread_mutex_destroy(world->mutex);
+  if (world->statements_mutex)
+  {
+	 pthread_mutex_destroy(world->statements_mutex);
+	 SYSTEM_FREE(world->statements_mutex);
+	 world->statements_mutex = NULL;
+  }
+
+  if (world->nodes_mutex)
+  {
+	 pthread_mutex_destroy(world->nodes_mutex);
+	 SYSTEM_FREE(world->nodes_mutex);
+	 world->nodes_mutex = NULL;
+  }
+
+  if (world->mutex)
+  {
+	 pthread_mutex_destroy(world->mutex);
      SYSTEM_FREE(world->mutex);
      world->mutex = NULL;
-   }
+  }
+
+
 #endif
 
 #ifdef MODULAR_LIBRDF
@@ -244,6 +260,10 @@
 
   world->statements_mutex = (pthread_mutex_t *) SYSTEM_MALLOC(sizeof(pthread_mutex_t));
   pthread_mutex_init(world->statements_mutex, NULL);
+
+  world->hash_datums_mutex = (pthread_mutex_t *) SYSTEM_MALLOC(sizeof(pthread_mutex_t));
+  pthread_mutex_init(world->hash_datums_mutex, NULL);
+
 #else
 #endif
 }