I wanna use in my application a C function contained in the C standard library. The function is clock_t clock( void );
It calculates the processor time used by the calling process
It requires time.h.

I've included in my mmp file the directory and the library (estlib.lib) needed to work with the C standard library.

I guess that some functions like clock are not connected to the hardware so they cannot work.

Someone have an idea about that?