getopt_long       599 examples/heif_enc.cc     int c = getopt_long(argc, argv, "hq:Lo:vPp:t:", long_options, &option_index);
getopt_long        87 examples/heif_info.cc     int c = getopt_long(argc, argv, "dh", long_options, &option_index);
getopt_long        84 examples/heif_test.cc     int c = getopt_long(argc, argv, "d:m:h", long_options, &option_index);
getopt_long        59 extra/getopt.h int getopt_long(int, char**, char*, struct option*, int*);