getsubopt
int getsubopt(char **, char * const *, char **);
__weak_alias(getsubopt,_getsubopt)
getsubopt(char **optionp, char * const *tokens, char **valuep)
switch (getsubopt(&options,traceopts,&value)) {
int getsubopt(char **, char * const *, char **);
switch (getsubopt(&options,