RFR: 8284539: Configure --with-source-date=version fails on MacOS

[Andrew Leonard]

On Fri, 15 Apr 2022 12:32:50 GMT, Erik Joelsson <erikj at openjdk.org> wrote:

>> JDK-8282769 added support for more ISO-8601 formats, but remove handling of just a date "YYYY-MM-DD" being present, which is the case for a configure using --with-source-date=version which uses the date string from version-numbers.conf.
>> Also, the first date parse had an invalid format string "%FZ %TZ", with too many Zs.
>> This PR corrects the first date parse to parse a standard ISO-8601 Zulu date&time: "%FT%TZ"
>> Then it adds the final check for no time being specified.
>> 
>> Signed-off-by: Andrew Leonard <anleonar at redhat.com>
>
> make/autoconf/util.m4 line 243:
> 
>> 241:     # BSD date
>> 242:     # ISO-8601 date&time in Zulu 'date'T'time'Z
>> 243:     timestamp=$($DATE -u -j -f "%FT%TZ" "$2" "+%s" 2> /dev/null)
> 
> You are removing the space between FT and TZ, I'm just curious why and if that is significant.
> EDIT: Never mind me, this looks good.

yes, this is supposed to be parsing an ISO8601 eg.2022-02-09T14:47:36Z, the previous JDK-8282769 had an error in this string

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PR: https://git.openjdk.java.net/jdk/pull/8247