Undefined reference to `clock_gettime'

[tvv...@gmail.com]

Hello!

I've setup cross compile environment using Eclipse according to the guide here. 

In this code:

#include "Timer.h"
#include <time.h>


unsigned long millis(void)
{
    struct timespec ts;
    clock_gettime(CLOCK_MONOTONIC,  &ts );
    return ( ts.tv_sec * 1000 + ts.tv_nsec / 1000000L );
}

#ifndef TIMER_H_
#define TIMER_H_

#define CLOCK_MONOTONIC 1

unsigned long millis ();

#endif /* TIMER_H_ */

I have error:

undefined reference to `clock_gettime'

Another libraries work fine (for example stdio.h, iostream ...), but time.h is not.

Help, please. 

Thanks

[Daniel Nilsson]

Hi,

You need to link you application with -lrt.

/Daniel

[tvv...@gmail.com]

In "Tool Settings" > "GCC C++ Linker" in "All option:" I have:

-L/usr/arm-linux-gnueabihf/lib -lrt

All right?

But doesn't compile...

пятница, 4 октября 2013 г., 18:32:48 UTC+4 пользователь Daniel Nilsson написал:

[Dieter Wirz]

#include <sys/time.h>

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[Tux Leonard]

Consider the configuration. You need to do it for Release and Debug configuration.

Perhaps you set it in Debug configuration but you are building a Release version.

2013/10/4 <tvv...@gmail.com>

--

[tvv...@gmail.com]

Not work...

I tried some links to libraries, but to no avail.

пятница, 4 октября 2013 г., 19:14:31 UTC+4 пользователь Dieter Wirz написал:

[tvv...@gmail.com]

No. I check configuration, all right. 

I compiled my project befor added time.h and clock_gettime. Project include many libraries and I hadn't problems. 

Problem is only in clock_gettime.

пятница, 4 октября 2013 г., 19:21:21 UTC+4 пользователь Tux Leonard написал:

[tvv...@gmail.com]

"Tool Settings" > "GCC C++ Linker" > "Libraries" > "Libraries (-l)" > "Add ..."  rt.

Problem fixed. Thanks for all.

[goodz...@gmail.com]

Worked, thanks Ivan!