| Subject: | enforce dep versions |
| Date: | Mon, 12 Dec 2011 11:35:58 +0000 |
| To: | bug-MooseX-Types-DateTime [...] rt.cpan.org |
| From: | Zefram <zefram [...] fysh.org> |
MX:T:DT's Makefile.PL declares a bunch of prerequisite versions, such
as DateTime 0.4302, which MX/T/DT.pm then doesn't enforce at runtime.
The result is that if a prerequisite upgrade fails then an installer such
as CPAN.pm may go on and try to run MX:T:DT anyway, and the module won't
necessarily complain about the missing prereq. It won't actually notice
a problem unless the test suite happens to run into whatever way the
older version of the prereq is inadequate, and in that case the error
message won't make the nature of the problem clear.
The "use" lines should always enforce version requirements. Makefile.PL
should then declare what the "use" lines require. These two are not
substitutes for each other.
-zefram