1 files changed, 2 insertions, 0 deletions
diff --git a/winsup/cygwin/dcrt0.cc b/winsup/cygwin/dcrt0.cc
index f12654d26..da39f07a1 100644
--- a/winsup/cygwin/dcrt0.cc
+++ b/winsup/cygwin/dcrt0.cc
@@ -967,10 +967,12 @@ enum exit_states
   };
 
 exit_states NO_COPY exit_state;
+extern CRITICAL_SECTION exit_lock;
 
 extern "C" void __stdcall
 do_exit (int status)
 {
+  EnterCriticalSection (&exit_lock);
   UINT n = (UINT) status;
 
   syscall_printf ("do_exit (%d)", n);