#define OPT_FLOAT 0x0100
#define OPT_SUBTITLE 0x0200
#define OPT_FUNC2 0x0400
+#define OPT_INT64 0x0800
union {
void (*func_arg)(const char *); //FIXME passing error code as int return would be nicer then exit() in the func
int *int_arg;
char **str_arg;
float *float_arg;
int (*func2_arg)(const char *, const char *);
+ int64_t *int64_arg;
} u;
const char *help;
const char *argname;