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[gcc.git] / libgcc / gthr-single.h

diff --git a/libgcc/gthr-single.h b/libgcc/gthr-single.h
index 7e6ad697fcbcf2aebe44c6e9c9add532b3ad7d76..c6d84e380750cb985caed94e154396fc22c139a6 100644 (file)
--- a/libgcc/gthr-single.h
+++ b/libgcc/gthr-single.h
@@ -1,6 +1,6 @@
 /* Threads compatibility routines for libgcc2 and libobjc.  */
 /* Compile this one with gcc.  */
-/* Copyright (C) 1997-2013 Free Software Foundation, Inc.
+/* Copyright (C) 1997-2020 Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -35,10 +35,10 @@ typedef int __gthread_recursive_mutex_t;
 
 #define __GTHREAD_ONCE_INIT 0
 #define __GTHREAD_MUTEX_INIT 0
-#define __GTHREAD_MUTEX_INIT_FUNCTION(mx)
+#define __GTHREAD_MUTEX_INIT_FUNCTION(mx) do {} while (0)
 #define __GTHREAD_RECURSIVE_MUTEX_INIT 0
 
-#define UNUSED __attribute__((unused))
+#define UNUSED __attribute__((__unused__))
 
 #ifdef _LIBOBJC