Index: winpthreads/src/thread.c
===================================================================
--- winpthreads.orig/src/thread.c
+++ winpthreads/src/thread.c
@@ -295,8 +295,10 @@ push_pthread_mem (_pthread_v *sv)
   memset (sv, 0, sizeof(struct _pthread_v));
   if (pthr_last == NULL)
     pthr_root = pthr_last = sv;
-  else
+  else {
     pthr_last->next = sv;
+    pthr_last = sv;
+  }
   pthread_mutex_unlock (&mtx_pthr_locked);
 }