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- /*
- * get option letter from argument vector
- */
- extern int
- optind, /* index into parent argv vector */
- optopt; /* character checked for validity */
- extern char
- *optarg; /* argument associated with option */
-
- #define BADCH ((int)'?')
- #define EMSG ""
- #define tell(s) {fputs(*nargv,stderr);fputs((s),stderr); \
- fputc(optopt,stderr);fputc('\n',stderr);return(BADCH);}
-
- extern int getopt(), getarg();
-