diff --git a/lash_compat/liblash/lash.c b/lash_compat/liblash/lash.c
index 7e271021..2342534e 100644
--- a/lash_compat/liblash/lash.c
+++ b/lash_compat/liblash/lash.c
@@ -2,7 +2,7 @@
 /*
  * LADI Session Handler (ladish)
  *
- * Copyright (C) 2009 Nedko Arnaudov <nedko@arnaudov.name>
+ * Copyright (C) 2009,2010 Nedko Arnaudov <nedko@arnaudov.name>
  *
  **************************************************************************
  * This file contains the liblash implementaiton
@@ -25,6 +25,7 @@
  */
 
 #include "lash/lash.h"
+#include "../../common/catdup.h"
 
 const char * lash_protocol_string(lash_protocol_t protocol)
 {
@@ -247,3 +248,17 @@ void lash_config_set_value_double(lash_config_t * config, double value)
 void lash_config_set_value_string(lash_config_t * config, const char * value)
 {
 }
+
+const char * lash_get_fqn(const char * dir, const char * file)
+{
+  static char * fqn = NULL;
+
+  if (fqn != NULL)
+  {
+    free(fqn);
+  }
+
+  fqn = catdup3(dir, "/", file);
+
+  return fqn;
+}
diff --git a/lash_compat/liblash/lash/lash.h b/lash_compat/liblash/lash/lash.h
index 3b54203f..798c2218 100644
--- a/lash_compat/liblash/lash/lash.h
+++ b/lash_compat/liblash/lash/lash.h
@@ -2,7 +2,7 @@
 /*
  * LADI Session Handler (ladish)
  *
- * Copyright (C) 2009 Nedko Arnaudov <nedko@arnaudov.name>
+ * Copyright (C) 2009,2010 Nedko Arnaudov <nedko@arnaudov.name>
  * Copyright (C) 2002 Robert Ham <rah@bash.sh>
  *
  **************************************************************************
@@ -156,6 +156,9 @@ void lash_config_set_value_float(lash_config_t * config, float value);
 void lash_config_set_value_double(lash_config_t * config, double value);
 void lash_config_set_value_string(lash_config_t * config, const char * value);
 
+/* internal function in lash-0.5.x, depecated in lash-0.6.x, used by jack-rack */
+const char * lash_get_fqn(const char * dir, const char * file);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/wscript b/wscript
index c3ef3ca7..2cf11f26 100644
--- a/wscript
+++ b/wscript
@@ -386,7 +386,7 @@ def build(bld):
         liblash.target = 'lash'
         liblash.vnum = "1.1.1"
         liblash.defines = ['LOG_OUTPUT_STDOUT']
-        liblash.source = [os.path.join("lash_compat", "liblash", 'lash.c')]
+        liblash.source = [os.path.join("lash_compat", "liblash", 'lash.c'), os.path.join("common", "catdup.c")]
 
         bld.install_files('${PREFIX}/include/lash', 'lash_compat/liblash/lash/*.h')