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diff --git a/usr.sbin/zic/README b/usr.sbin/zic/README deleted file mode 100644 index 5cb701e..0000000 --- a/usr.sbin/zic/README +++ /dev/null @@ -1,88 +0,0 @@ -@(#)README 8.3 -This file is in the public domain, so clarified as of -2009-05-17 by Arthur David Olson. - -$FreeBSD$ - -"What time is it?" -- Richard Deacon as The King -"Any time you want it to be." -- Frank Baxter as The Scientist - (from the Bell System film "About Time") - -The 1989 update of the time zone package featured - -* POSIXization (including interpretation of POSIX-style TZ environment - variables, provided by Guy Harris), -* ANSIfication (including versions of "mktime" and "difftime"), -* SVIDulation (an "altzone" variable) -* MACHination (the "gtime" function) -* corrections to some time zone data (including corrections to the rules - for Great Britain and New Zealand) -* reference data from the United States Naval Observatory for folks who - want to do additional time zones -* and the 1989 data for Saudi Arabia. - -(Since this code will be treated as "part of the implementation" in some places -and as "part of the application" in others, there's no good way to name -functions, such as timegm, that are not part of the proposed ANSI C standard; -such functions have kept their old, underscore-free names in this update.) - -And the "dysize" function has disappeared; it was present to allow compilation -of the "date" command on old BSD systems, and a version of "date" is now -provided in the package. The "date" command is not created when you "make all" -since it may lack options provided by the version distributed with your -operating system, or may not interact with the system in the same way the -native version does. - -Since POSIX frowns on correct leap second handling, the default behavior of -the "zic" command (in the absence of a "-L" option) has been changed to omit -leap second information from its output files. - -Here is a recipe for acquiring, building, installing, and testing the -tz distribution on a GNU/Linux or similar host. - - mkdir tz - cd tz - wget 'ftp://elsie.nci.nih.gov/pub/tz*.tar.gz' - gzip -dc tzcode*.tar.gz | tar -xf - - gzip -dc tzdata*.tar.gz | tar -xf - - -Be sure to read the comments in "Makefile" and make any changes needed -to make things right for your system, especially if you are using some -platform other than GNU/Linux. Then run the following commands, -substituting your desired installation directory for "$HOME/tzdir": - - make TOPDIR=$HOME/tzdir install - $HOME/tzdir/etc/zdump -v America/Los_Angeles - -To use the new functions, use a "-ltz" option when compiling or linking. - -Historical local time information has been included here to: - -* provide a compendium of data about the history of civil time - that is useful even if the data are not 100% accurate; - -* give an idea of the variety of local time rules that have - existed in the past and thus an idea of the variety that may be - expected in the future; - -* provide a test of the generality of the local time rule description - system. - -The information in the time zone data files is by no means authoritative; -the files currently do not even attempt to cover all time stamps before -1970, and there are undoubtedly errors even for time stamps since 1970. -If you know that the rules are different from those in a file, by all means -feel free to change file (and please send the changed version to -tz@elsie.nci.nih.gov for use in the future). Europeans take note! - -Thanks to these Timezone Caballeros who've made major contributions to the -time conversion package: Keith Bostic; Bob Devine; Paul Eggert; Robert Elz; -Guy Harris; Mark Horton; John Mackin; and Bradley White. Thanks also to -Michael Bloom, Art Neilson, Stephen Prince, John Sovereign, and Frank Wales -for testing work, and to Gwillim Law for checking local mean time data. -None of them are responsible for remaining errors. - -Look in the ~ftp/pub directory of elsie.nci.nih.gov -for updated versions of these files. - -Please send comments or information to tz@elsie.nci.nih.gov. |
