getopt(3) was also added in 1003.2-1992.
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@ -134,13 +134,13 @@ char *ttyname(int);
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int unlink(const char *);
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ssize_t write(int, const void *, size_t);
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extern char *optarg; /* getopt(3) external variables */
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extern int optind, opterr, optopt;
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int getopt(int, char * const [], const char *);
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/* 1003.2-1992 */
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#if __POSIX_VISIBLE >= 199209
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size_t confstr(int, char *, size_t);
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int getopt(int, char * const [], const char *);
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extern char *optarg; /* getopt(3) external variables */
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extern int optind, opterr, optopt;
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#endif
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/* ISO/IEC 9945-1: 1996 */
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