I've incorporated Guy Harris' asctime_r and ctime_r changes, Paul Eggert's data changes, and Paul's Makefile change to create zoneinfo-right and zoneinfo-posix rather than zoneinfo/right and zoneinfo/posix. Before making new tz...gz stuff available, though, a question: might a name more neutral than "zoneinfo-right" be better? (I'm mindful of our past experience with "Pacific-New"; I don't want to unnecessarily tempt folks to replace "zoneinfo" with "zoneinfo-right".) On leap seconds: having a single leap second file would eliminate the ability to have "rolling" leap seconds. (This was provided when, one year, the city of New York announced that the countdown for the dropping of the big ball that marks the beginning of the new year would run "3...2...1...LEAP...Happy New Year!", putting the leap second at midnight local time. The time zone data as distributed reflects internationally agreed leap-second-occurs-at-the-same-instant-everywhere-on-Earth behavior.) --ado