Compiling under MSVC2013

[JodiTheTigger]

Heya,

I hacked minmea.h so I could build this under MSVC2013.

Just posting my code snippet (at the top of minmea.h) in-case anyone else wants to do the same.

// ...

#ifdef __cplusplus
extern "C" {
#endif

#if defined(_MSC_VER)
#if !defined(HAVE_STRUCT_TIMESPEC)
struct timespec {
    time_t          tv_sec;
    long            tv_nsec;
};
#endif

#define inline __inline
#define timegm _mkgmtime

#endif

#include <stdio.h>
#include <stdint.h>

// ...

[kosma]

I'll separate those into a compatibility module so others can benefit.

(also I can't believe MSVC still doesn't know about "inline". talk about Microsoft slowing down progress in the computer world...)

[kosma]

Included in 0b02771. Thanks!