diff options
Diffstat (limited to 'zic.8.txt')
| -rw-r--r-- | zic.8.txt | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/zic.8.txt b/zic.8.txt index 2bf66e1aa64d..426978307e88 100644 --- a/zic.8.txt +++ b/zic.8.txt @@ -46,23 +46,27 @@ OPTIONS -L leapsecondfilename Read leap second information from the file with the given name. If this option is not used, no leap second information appears - in output files. + in output files; this is required by some TZif readers. -p timezone - Use timezone's rules when handling nonstandard TZ strings like - "EET-2EEST" that lack transition rules. zic will act as if the - input contained a link line of the form + Act as if the input contained a link line of the form Link timezone posixrules If timezone is “-” (the default), any already-existing link is removed. - Unless timezone is “-”, this option is obsolete and poorly - supported. Among other things it should not be used for - timestamps after the year 2037, and it should not be combined - with -b slim if timezone's transitions are at standard time or - Universal Time (UT) instead of local time. + Unless timezone is “-”, this option is obsolete and is no longer + supported by most runtimes. Among other things it should not be + used for timestamps after the year 2037, and it should not be + combined with -b slim if timezone's transitions are at standard + time or Universal Time (UT) instead of local time. The option + is present only to support obsolete runtimes that used + timezone's rules when handling obsolescent TZ strings like + "AST4ADT" that lack transition rules; modern runtimes that + support these TZ strings typically just use current US rules as + the TZ strings were mainly used in the US. Similarly, any Zone + or Link named "posixrules" is obsolete and problematic. -m mode Create TZif files with the given file mode bits. By default the |