* Makefile (POSIXRULES): Default to '-'. * NEWS: Mention this. --- Makefile | 36 ++++++++++++++++-------------------- NEWS | 5 +++++ 2 files changed, 21 insertions(+), 20 deletions(-) diff --git a/Makefile b/Makefile index 107f67e..0da7c3f 100644 --- a/Makefile +++ b/Makefile @@ -27,8 +27,7 @@ DATAFORM= main # Change the line below for your timezone (after finding the one you want in # one of the $(TDATA) source files, or adding it to a source file). # Alternatively, if you discover you've got the wrong timezone, you can just -# zic -l rightzone -# to correct things. +# 'zic -l -' to remove it, or 'zic -l rightzone' to change it. # Use the command # make zonenames # to get a list of the values you can use for LOCALTIME. @@ -37,33 +36,30 @@ LOCALTIME= GMT # The POSIXRULES macro controls interpretation of nonstandard and obsolete # POSIX-like TZ settings like TZ='EET-2EEST' that lack DST transition rules. -# In the reference implementation, if you want something other than Eastern -# United States time as a template for handling these settings, you can -# change the line below (after finding the timezone you want in the -# one of the $(TDATA) source files, or adding it to a source file). -# A setting like TZ='EET-2EEST' is supposed to use the rules in the -# template file to determine "spring forward" and "fall back" days and -# times; the environment variable itself specifies UT offsets of standard and -# daylight saving time. -# Alternatively, if you discover you've got the wrong timezone, you can just -# zic -p rightzone -# to correct things. -# Use the command -# make zonenames -# to get a list of the values you can use for POSIXRULES. +# Such a setting uses the rules in a template file to determine +# "spring forward" and "fall back" days and times; the environment +# variable itself specifies UT offsets of standard and daylight saving time. # -# If POSIXRULES is empty, no template is installed; this is the intended -# future default for POSIXRULES. +# If POSIXRULES is '-', no template is installed; this is the default. # -# Nonempty POSIXRULES is obsolete and should not be relied on, because: +# Any other value for POSIXRULES is obsolete and should not be relied on, as: # * It does not work correctly in popular implementations such as GNU/Linux. # * It does not work in the tzdb implementation for timestamps after 2037. # * It is incompatible with 'zic -b slim' if POSIXRULES specifies transitions # at standard time or UT rather than at local time. # In short, software should avoid ruleless settings like TZ='EET-2EEST' # and so should not depend on the value of POSIXRULES. +# +# If, despite the above, you want a template for handling these settings, +# you can change the line below (after finding the timezone you want in the +# one of the $(TDATA) source files, or adding it to a source file). +# Alternatively, if you discover you've got the wrong timezone, you can just +# 'zic -p -' to remove it, or 'zic -p rightzone' to change it. +# Use the command +# make zonenames +# to get a list of the values you can use for POSIXRULES. -POSIXRULES= America/New_York +POSIXRULES= - # Also see TZDEFRULESTRING below, which takes effect only # if the time zone files cannot be accessed. diff --git a/NEWS b/NEWS index cdcdbc1..bfe02ea 100644 --- a/NEWS +++ b/NEWS @@ -29,6 +29,11 @@ Unreleased, experimental changes The undocumented and ineffective tzsetwall function has been removed. + Changes to build procedure + + The Makefile now defaults POSIXRULES to '-', so the posixrules + feature (obsolete as of 2019b) is no longer installed by default. + Release 2020a - 2020-04-23 16:03:47 -0700 -- 2.17.1