ref: 522f08e5f1a4f16a2cb2016c7b03f86b1eadea30
dir: /sys/src/cmd/aux/gps/dat.h/
typedef struct Place Place;
struct Place {
double lon;
double lat;
};
#pragma varargck type "L" Place
enum {
Undef = 0x80000000,
Baud= 4800, /* 4800 is NMEA standard speed */
};
extern Place nowhere;
extern int debug;
int placeconv(Fmt*);
Place strtopos(char*, char**);
int strtolatlon(char*, char**, Place*);