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-rw-r--r--posix/getopt.h9
1 files changed, 5 insertions, 4 deletions
diff --git a/posix/getopt.h b/posix/getopt.h
index a1b8dd6658..4283c35b16 100644
--- a/posix/getopt.h
+++ b/posix/getopt.h
@@ -142,20 +142,21 @@ struct option
 /* Many other libraries have conflicting prototypes for getopt, with
    differences in the consts, in stdlib.h.  To avoid compilation
    errors, only prototype getopt for the GNU C library.  */
-extern int getopt (int __argc, char *const *__argv, const char *__shortopts);
+extern int getopt (int ___argc, char *const *___argv, const char *__shortopts);
 # else /* not __GNU_LIBRARY__ */
 extern int getopt ();
 # endif /* __GNU_LIBRARY__ */
 
 # ifndef __need_getopt
-extern int getopt_long (int __argc, char *const *__argv, const char *__shortopts,
+extern int getopt_long (int ___argc, char *const *___argv,
+			const char *__shortopts,
 		        const struct option *__longopts, int *__longind);
-extern int getopt_long_only (int __argc, char *const *__argv,
+extern int getopt_long_only (int ___argc, char *const *___argv,
 			     const char *__shortopts,
 		             const struct option *__longopts, int *__longind);
 
 /* Internal only.  Users should not call this directly.  */
-extern int _getopt_internal (int __argc, char *const *__argv,
+extern int _getopt_internal (int ___argc, char *const *___argv,
 			     const char *__shortopts,
 		             const struct option *__longopts, int *__longind,
 			     int __long_only);