mirror of
https://frontier.innolan.net/rainlance/amiga-tz.git
synced 2025-11-19 21:59:33 +00:00
3526093c71
This lets us preserve information about pre-1970 time stamps when we change a Zone to a Link to another zone whose time stamps agree after 1970. This should address concerns about some recent changes that removed this information. This implementation is a stripped-down version of a suggestion by Andrew Main (Zefram) in <http://mm.icann.org/pipermail/tz/2013-August/019615.html> and <http://mm.icann.org/pipermail/tz/2013-August/019639.html> to allow filtering tz data by date range. Unlike Zefram's suggestion, this implementation supports only two date ranges, namely 1970 on, using 'make BACKWARD=backward'; and all dates, using 'make BACKWARD="pre1970 back-pre1970"'. At some point I'd like to improve it to support arbitrary date ranges, but at least we've now restored the data whose loss was of some concern. * .gitignore: Add back-pre1970. * Makefile (BACKWARD): New macro. (YDATA): Use it instead of 'backward'. (AWK_SCRIPTS): New macro, with additional script back-pre1970.awk. (MISC): Use it. (back-pre1970): New rule. (clean_misc): Clean back-pre1970. Also clean time.tab, while we're at it. (check_public): Don't require pre1970 to stand alone. * pre1970, back-pre1970.awk: New files.
16 lines
117 B
Plaintext
16 lines
117 B
Plaintext
*.asc
|
|
*.o
|
|
*.tar.gz
|
|
*.txt
|
|
*~
|
|
ChangeLog
|
|
back-pre1970
|
|
date
|
|
leapseconds
|
|
time.tab
|
|
tzselect
|
|
version.h
|
|
yearistype
|
|
zdump
|
|
zic
|