to trigger/signal a rebuild for the transition 5.8.8 -> 5.10.0.
The list of packages is computed by finding all packages which end
up having either of PERL5_USE_PACKLIST, BUILDLINK_API_DEPENDS.perl,
or PERL5_PACKLIST defined in their make setup (tested via
"make show-vars VARNAMES=...").
Should fix PR#39541.
This module parses regular expressions (regexes). Its default "grammar" is Perl
5.8.4's regex set. Grammar is quoted because the module does not so much define
a grammar as let each matched node state what it expects to match next, but
there is not currently a way of extracting a complete grammar. This may change
in future versions.