When compiling a program I wrote on Mac OS X after installing the necessary libraries through MacPorts, I get this error:

In function 'nanotime':
error: 'CLOCK_REALTIME' undeclared (first use in this function)
error: (Each undeclared identifier is reported only once
error: for each function it appears in.)

It appears that clock_gettime is not implemented in Mac OS X. Is there an alternative means of getting the epoch time in nanoseconds? Unfortunately gettimeofday is in microseconds.

c macos time clock
Edit
Report