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-rw-r--r--posix/sys/wait.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/posix/sys/wait.h b/posix/sys/wait.h
index 9b5025ab83..bc2298f667 100644
--- a/posix/sys/wait.h
+++ b/posix/sys/wait.h
@@ -38,7 +38,7 @@ __BEGIN_DECLS
 /* Lots of hair to allow traditional BSD use of `union wait'
    as well as POSIX.1 use of `int' for the status word.  */
 
-# ifdef	__GNUC__
+# if defined __GNUC__ && !defined __cplusplus
 #  define __WAIT_INT(status)						      \
   (__extension__ ({ union { __typeof(status) __in; int __i; } __u;	      \
 		    __u.__in = (status); __u.__i; }))