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diff --git a/gc-7.2/tests/initsecondarythread.c b/gc-7.2/tests/initsecondarythread.c
new file mode 100644
index 0000000..9b2ca60
--- /dev/null
+++ b/gc-7.2/tests/initsecondarythread.c
@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2011 Ludovic Courtes <ludo@gnu.org>
+ *
+ * THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
+ * OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
+ *
+ * Permission is hereby granted to use or copy this program
+ * for any purpose, provided the above notices are retained on all copies.
+ * Permission to modify the code and to distribute modified code is granted,
+ * provided the above notices are retained, and a notice that the code was
+ * modified is included with the above copyright notice.
+ */
+
+/* Make sure 'GC_INIT' can be called from threads other than the initial
+ * thread.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "private/config.h"
+#endif
+
+#ifndef GC_THREADS
+# define GC_THREADS
+#endif
+
+#define GC_NO_THREAD_REDIRECTS 1
+                /* Do not redirect thread creation and join calls.      */
+
+#include "gc.h"
+
+#ifdef GC_PTHREADS
+# include <pthread.h>
+#else
+# include <windows.h>
+#endif
+
+#include <stdlib.h>
+#include <stdio.h>
+
+#ifdef GC_PTHREADS
+  static void *thread(void *arg)
+#else
+  static DWORD WINAPI thread(LPVOID arg)
+#endif
+{
+  GC_INIT();
+  (void)GC_MALLOC(123);
+  (void)GC_MALLOC(12345);
+# ifdef GC_PTHREADS
+    return arg;
+# else
+    return (DWORD)(GC_word)arg;
+# endif
+}
+
+#include "private/gcconfig.h"
+
+int main(void)
+{
+# ifdef GC_PTHREADS
+    int code;
+    pthread_t t;
+# else
+    HANDLE t;
+    DWORD thread_id;
+# endif
+# if !(defined(BEOS) || defined(MSWIN32) || defined(MSWINCE) \
+       || defined(CYGWIN32) || defined(GC_OPENBSD_THREADS) \
+       || (defined(DARWIN) && !defined(NO_PTHREAD_GET_STACKADDR_NP)) \
+       || (defined(LINUX) && !defined(NACL)) \
+       || (defined(GC_SOLARIS_THREADS) && !defined(_STRICT_STDC)) \
+       || (!defined(STACKBOTTOM) && (defined(HEURISTIC1) \
+          || (!defined(LINUX_STACKBOTTOM) && !defined(FREEBSD_STACKBOTTOM)))))
+    /* GC_INIT() must be called from main thread only. */
+    GC_INIT();
+# endif
+# ifdef GC_PTHREADS
+    if ((code = pthread_create (&t, NULL, thread, NULL)) != 0) {
+      printf("Thread creation failed %d\n", code);
+      return 1;
+    }
+    if ((code = pthread_join (t, NULL)) != 0) {
+      printf("Thread join failed %d\n", code);
+      return 1;
+    }
+# else
+    t = CreateThread(NULL, 0, thread, 0, 0, &thread_id);
+    if (t == NULL) {
+      printf("Thread creation failed %d\n", (int)GetLastError());
+      return 1;
+    }
+    if (WaitForSingleObject(t, INFINITE) != WAIT_OBJECT_0) {
+      printf("Thread join failed %d\n", (int)GetLastError());
+      CloseHandle(t);
+      return 1;
+    }
+    CloseHandle(t);
+# endif
+  return 0;
+}