From Joern Adamczewski:

fixed issue 31085 by just changing the argument of
static TThread::Delete to a reference.


git-svn-id: http://root.cern.ch/svn/root/trunk@20782 27541ba8-7e3a-0410-8455-c3a389f83636

thread/inc/TThread.h

@@ -154,7 +154,7 @@ public:
    static Int_t     Sleep(ULong_t secs, ULong_t nanos = 0);
    static Int_t     GetTime(ULong_t *absSec, ULong_t *absNanoSec);
 
-   static Int_t     Delete(TThread *th);
+   static Int_t     Delete(TThread *&th);
    static void    **Tsd(void *dflt, Int_t k);
 
    // Cancellation

thread/src/TThread.cxx

@@ -300,7 +300,7 @@ TThread::~TThread()
 }
 
 //______________________________________________________________________________
-Int_t TThread::Delete(TThread *th)
+Int_t TThread::Delete(TThread *&th)
 {
    // Static method to delete the specified thread.