diff --git a/ChangeLog b/ChangeLog
index c90799a1..c605e67a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -22,6 +22,7 @@ Nedko Arnaudov
 2008-03-11 Stephane Letz  <letz@grame.fr>
 		
 	* Fix engine real-time notification (was broken since ??).
+	* Correct jack_client_open_aux, jack_client_open and jack_client_new.
 
 2008-03-10 Stephane Letz  <letz@grame.fr>
 		
diff --git a/common/JackAPI.cpp b/common/JackAPI.cpp
index f222c5a6..de25288a 100644
--- a/common/JackAPI.cpp
+++ b/common/JackAPI.cpp
@@ -269,7 +269,8 @@ EXPORT jack_client_t* jack_client_new(const char* client_name)
     int options = JackUseExactName;
     if (getenv("JACK_START_SERVER") == NULL)
         options |= JackNoStartServer;
-    return jack_client_open_aux(client_name, (jack_options_t)options, NULL);
+	va_list ap;
+    return jack_client_open_aux(client_name, (jack_options_t)options, NULL, ap);
 }
 
 EXPORT void* jack_port_get_buffer(jack_port_t* port, jack_nframes_t frames)
diff --git a/common/JackLibAPI.cpp b/common/JackLibAPI.cpp
index f7c568c1..a3307748 100644
--- a/common/JackLibAPI.cpp
+++ b/common/JackLibAPI.cpp
@@ -41,7 +41,7 @@ extern "C"
 
 	EXPORT jack_client_t * jack_client_open_aux (const char *client_name,
             jack_options_t options,
-            jack_status_t *status, ...);
+            jack_status_t *status, va_list ap);
 	EXPORT jack_client_t * jack_client_open (const char *client_name,
             jack_options_t options,
             jack_status_t *status, ...);
@@ -54,9 +54,8 @@ extern "C"
 JackLibGlobals* JackLibGlobals::fGlobals = NULL;
 int JackLibGlobals::fClientCount = 0;
 
-EXPORT jack_client_t* jack_client_open_aux(const char* ext_client_name, jack_options_t options, jack_status_t* status, ...)
+EXPORT jack_client_t* jack_client_open_aux(const char* ext_client_name, jack_options_t options, jack_status_t* status, va_list ap)
 {
-    va_list ap;				/* variable argument pointer */
     jack_varargs_t va;		/* variable arguments */
     jack_status_t my_status;
     JackClient* client;
@@ -76,10 +75,8 @@ EXPORT jack_client_t* jack_client_open_aux(const char* ext_client_name, jack_opt
     }
 
     /* parse variable arguments */
-    va_start(ap, status);
-    jack_varargs_parse(options, ap, &va);
-    va_end(ap);
-
+    if (ap)
+		jack_varargs_parse(options, ap, &va);
 
     jack_log("jack_client_open %s", client_name);
     if (client_name == NULL) {
diff --git a/common/JackServerAPI.cpp b/common/JackServerAPI.cpp
index 1c9928d4..30485786 100644
--- a/common/JackServerAPI.cpp
+++ b/common/JackServerAPI.cpp
@@ -44,7 +44,7 @@ extern "C"
 
 	EXPORT jack_client_t * jack_client_open_aux (const char *client_name,
             jack_options_t options,
-            jack_status_t *status, ...);
+            jack_status_t *status, va_list ap);
     EXPORT jack_client_t * jack_client_open (const char *client_name,
             jack_options_t options,
             jack_status_t *status, ...);
@@ -56,9 +56,8 @@ extern "C"
 
 using namespace Jack;
 
-EXPORT jack_client_t* jack_client_open_aux(const char* ext_client_name, jack_options_t options, jack_status_t* status, ...)
+EXPORT jack_client_t* jack_client_open_aux(const char* ext_client_name, jack_options_t options, jack_status_t* status, va_list ap)
 {
-    va_list ap;				/* variable argument pointer */
     jack_varargs_t va;		/* variable arguments */
     jack_status_t my_status;
     JackClient* client;
@@ -78,10 +77,9 @@ EXPORT jack_client_t* jack_client_open_aux(const char* ext_client_name, jack_opt
     }
 
     /* parse variable arguments */
-    va_start(ap, status);
-    jack_varargs_parse(options, ap, &va);
-    va_end(ap);
-
+	if (ap)
+		jack_varargs_parse(options, ap, &va);
+ 
     jack_log("jack_client_open %s", client_name);
     if (client_name == NULL) {
         jack_error("jack_client_open called with a NULL client_name");