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94 #define required_argument 1
95 #define optional_argument 2
98 #if defined(__GNU_LIBRARY__)
102 extern int getopt (
int argc,
char *
const *argv,
const char *shortopts);
106 extern int getopt_long (
int argc,
char *
const *argv,
const char *shortopts,
107 const struct option *longopts,
int *longind);
109 const char *shortopts,
110 const struct option *longopts,
int *longind);
114 const char *shortopts,
115 const struct option *longopts,
int *longind,