3 files changed, 13 insertions, 5 deletions
diff --git a/externals/grill/flext/source/flext.cpp b/externals/grill/flext/source/flext.cpp
index e6003466..a5ee5a59 100644
--- a/externals/grill/flext/source/flext.cpp
+++ b/externals/grill/flext/source/flext.cpp
@@ -169,10 +169,6 @@ void flext_base::Setup(t_classid id)
 		AddMethod(id,0,"getattributes",(methfun)cb_ListAttrib);
 
 	SetProxies(c);
-
-#ifdef FLEXT_THREADS
-	thrid = GetThreadId();
-#endif
 }
 
 #if FLEXT_SYS == FLEXT_SYS_JMAX
diff --git a/externals/grill/flext/source/flsupport.cpp b/externals/grill/flext/source/flsupport.cpp
index dcac4c75..26ddc51f 100644
--- a/externals/grill/flext/source/flsupport.cpp
+++ b/externals/grill/flext/source/flsupport.cpp
@@ -31,6 +31,11 @@ const t_symbol *flext::sym_signal = NULL;
 
 void flext::Setup()
 {
+	static bool issetup = false;
+	if(issetup) 
+		return;
+	else issetup = true;
+
 #if FLEXT_SYS == FLEXT_SYS_PD
 	sym_anything = &s_anything;
 	sym_pointer = &s_pointer;
@@ -57,6 +62,7 @@ void flext::Setup()
 #endif
 
 #ifdef FLEXT_THREADS
+	thrid = GetThreadId();
     StartHelper();
 #endif
 }
diff --git a/externals/grill/flext/source/flthr.cpp b/externals/grill/flext/source/flthr.cpp
index d15e33d0..df8fb1a1 100644
--- a/externals/grill/flext/source/flthr.cpp
+++ b/externals/grill/flext/source/flthr.cpp
@@ -43,6 +43,12 @@ static flext::ThrCond *thrhelpcond = NULL;
 bool flext::StartHelper()
 {
 	if(thrhelpid) return true;
+	
+	if(!thrid) {
+		// system thread has not been set
+		ERRINTERNAL();
+		return false;
+	}
 
 	bool ok = false;
 #if FLEXT_THREADS == FLEXT_THR_POSIX
@@ -96,7 +102,7 @@ void flext::ThrHelper(void *)
 	pthread_attr_setdetachstate(&attr,PTHREAD_CREATE_DETACHED);
 #endif
 
-//	post("Helper");
+//	post("Helper thread started");
 
 	// set thread priority one point below normal
 	// so thread construction won't disturb real-time audio