> On 5 Feb 2023, at 00:02, Jacob Bachmeyer <jcb62...@gmail.com> wrote: > > Paul Eggert wrote: >> On 2023-02-03 18:27, Jacob Bachmeyer wrote: >>> Where are you actually using a 5.10 feature? >> >> Where lib/Automake/FileUtils.pm says "use Time::HiRes qw(stat);". This does >> not work with Perl 5.6. > > Time::HiRes is (perhaps was) installable from CPAN and is definitely /not/ a > 5.10 feature. I have a Perl 5.8 with it installed, and while my memories > that far back are a bit fuzzy, I seem to remember installing Time::HiRes on a > Perl 5.6 installation some years ago. Things like "our" variables, > PerlIO-by-default, and the defined-or operator are Perl features (those in > 5.6, 5.8, and 5.10 if I remember correctly), modules are (with rare > exceptions) not Perl features. > > The correct solution if you do not want to provide for the case where > Time::HiRes is not available is to simply "use Time::HiRes qw(stat);" and > *let* *that* *fail* if Time::HiRes is not available or cannot export stat(). > Time::HiRes was on CPAN long before it was bundled with Perl, so the Perl > version does /not/ tell you if it is available. (If Automake::FileUtils is > not immediately loaded, put "use Time::HiRes;" somewhere that is. That will > be enough to ensure that Time::HiRes is available.) > >> For why we bumped the version to 5.10, please see: >> >> https://git.savannah.gnu.org/cgit/autoconf.git/commit/?id=61901a1a14fd50c03cfb1529d091554376fef286 >> >>> Please do not arbitrarily bump version requirements just to bump version >>> requirements. >> >> That's not what was done here. The abovementioned URL says version >> requirements were bumped from 5.6 to 5.10 because the feature is not present >> in 5.6 (2000), is present in 5.10 (2007), and we lacked access to the museum >> pieces in the middle. If you are sure that a version number lower than 5.10 >> will do, please let us know. > > This was arbitrary because Time::HiRes is not actually dependent on the Perl > version in that way. (You should also be able to get access to the museum > pieces in the middle fairly easily using perlbrew.)
I think you probably mean "a mistake" rather than "arbitrary". He didn't choose it for no reason or for fun.
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