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Initializing system clock on PC386



It appears that on the PC the only thing I need to do
to initialize the system clock with the real-time clock
is:

  rtems_time_of_day time_buffer;

  rtc_read(&time_buffer);
  rtems_clock_set(&time_buffer);

but I get a link error "undefined reference to `rtc_read'".
Am I overlooking something?  I can't find
rtc_read() in any of the libraries.

Thanks,
Tony Richardson

========================================================================
===
P.S. Here's the full output from make:

$ make
i386-rtems-gcc --pipe
-B/opt/rtems-4.6/tools/pc386-install/i386-rtems/pc386/lib/ -specs
bsp_specs -qrtems   -g -Wall  -O4 -g              -Wl,-Ttext,0x00100000
-o o-optimize/wallclock.obj  o-optimize/wallclock.o
/opt/rtems-4.6/tools/pc386-install/i386-rtems/pc386/lib/no-dpmem.rel
/opt/rtems-4.6/tools/pc386-install/i386-rtems/pc386/lib/no-event.rel
/opt/rtems-4.6/tools/pc386-install/i386-rtems/pc386/lib/no-msg.rel
/opt/rtems-4.6/tools/pc386-install/i386-rtems/pc386/lib/no-mp.rel
/opt/rtems-4.6/tools/pc386-install/i386-rtems/pc386/lib/no-part.rel
/opt/rtems-4.6/tools/pc386-install/i386-rtems/pc386/lib/no-signal.rel
/opt/rtems-4.6/tools/pc386-install/i386-rtems/pc386/lib/no-timer.rel
/opt/rtems-4.6/tools/pc386-install/i386-rtems/pc386/lib/no-rtmon.rel

o-optimize/wallclock.o: In function `Init':
/home/ar63/rtems/projects/wallclock/wallclock.c:17: undefined reference
to `rtc_read'
collect2: ld returned 1 exit status
make: *** [o-optimize/wallclock.exe] Error 1