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-Util-linux has always had the clock program (by Charles Hedrick,
-Rob Hooft, Harald Koenig, Alan Modra).
-
-Slackware still uses the clock.c and clock.8 from util-linux-2.6
-(and calls the resulting source fragment clock-1.6.tar.gz).
-
-Bryan Henderson rewrote it, calling the result hwclock,
-and util-linux-2.6 has both clock.c and hwclock.c,
-util-linux-2.7 and later only have hwclock.c.
-
-Unfortunately, hwclock.c was broken in various ways, especially
-on non-intel hardware, and distributions started shipping private
-versions (usually derived from the old clock).
-
-For util-linux-2.9k Andries Brouwer took all clock versions around,
-and merged them. The resulting hwclock program works on all architectures.
-There are some kernel bugs in the handling of /dev/rtc on some i386 hardware,
-so under certain circumstances where hwclock fails one has to give it the
---directisa flag to let hwclock do the clock access itself (which works)
-rather than leave it to the kernel. [The precise cause is still being
-investigated.]
-This is the code presently found in the clock subdirectory.
-
-Bryan Henderson took this code again and merged it with his original
-hwclock source. That is the code found in the util-linux-2.9q clock
-directory. Unfortunately, this new version didnt work on Sparcs
-and in util-linux-2.9r this code was moved to the clockB subdirectory.
-
-
-Executive summary:
-clock/hwclock is claimed to be good (but may need the --directisa flag).
-
-
-Comments, bug reports etc are welcome.
-Note that the source contains a rather detailed description of the clock
-hardware involved. Additions and corrections are welcome.
-
-Andries
-aeb@cwi.nl